efficiency growth and concentration an empirical analysis of hospital markets taking an evolutionary view of markets harold demsetz hypothesized that firms differ persistently in efficiency and that industry concentration results from growth of efficient firms at the expense of inefficient ones we test the hypothesis with high quality microdata from the us hospital industry an industry of keen policy and scientific interest we measure efficiency by firm in the early 1980s and relate it to subsequent growth of efficient firms to the persistence of profit differences and to changes in the concentration of markets initial hospital efficiency and subsequent growth and profitability are significantly and positively related also greater initial variation in hospital efficiency within local markets is positively related to subsequent growth in market concentration these findings support the logic of demsetz s evolutionary efficiency hypothesis though they cannot confirm the stronger idea that variation in firm efficiency is the dominant explanation for changes in concentration

the relevant market for production and wholesale of electricity in the nordic countries an econometric study we apply cointegration analysis to daily averages of nord pool prices covering the period 2001 2007 in order to empirically characterize the geographical dimension of the relevant market for production and wholesale of electricity we reach the following econometric conclusions i price areas finland sweden and norway 3 unambiguously belong to the same relevant market ii denmark 2 belongs to this same market except for the subsample 2004 2007 iii norway 1 and denmark 1 define separate markets on their own we find that the stochastic trends in nord pool prices originate in countries abundant in capacity to generate hydro power

wind power in the danish liberalised power market policy measures price impact and investor incentives wind power has a strong position at the danish electricity market mainly caused by high feed in tariffs in the 1990s investments in new wind power installations on land however have declined dramatically after the danish electricity market was liberalised in 1999 first the paper describes how policy measures directed towards wind power have been redesigned to match the liberalised market then we estimate the impact of the redesigned tariffs on the electricity prices finally we assess whether the new tariffs make an incentive to invest in wind power the paper concludes that the new tariffs not by itself make evidence for the actual danish recession in new wind power installations after the electricity reform the main causes could include a combination of problems in spatial planning high risk aversion of new wind turbine investors and perhaps more favourable support schemes in other countries

u s sweeteners combating excess consumption with an excise tax obesity is a public health problem in the united states that has been linked to excess sweetener consumption the american heart association aha recommends no more than 6 9 teaspoons capita day while the u s food and drug administration fda recommends 200 calories capita day of caloric sweetener consumption both recommendations are well below the reported 2016 sweetener consumption levels we quantify the input tax rates needed to reduce the current excess sweetener consumption level to the aha and fda recommended standards we calculate the joint tax in the united states on two major sweeteners sugar and high fructose corn syrup hfcs to be 31 and 24 cents per pound respectively based on the aha standard and 19 and 17 cents per pound respectively using the fda standard these taxes would be roughly the magnitude of the existing sugar and hfcs prices in both cases the tax incidence on producers is much smaller than on consumers our focus is very different from past studies in that it deals with the effect of taxes on inputs to meet the recommended target rather than a selective tax sugar sweetened beverage tax if a sweetener tax were implemented u s sugar and hfcs producers would lose us 398 us 489 and us 683 us 844 million per year respectively

valuing the attributes of renewable energy investments increasing the proportion of power derived from renewable energy sources is becoming an increasingly important part of many countries s strategies to achieve reductions in greenhouse gas emissions however renewable energy investments can often have external costs and benefits which need to be taken into account if socially optimal investments are to be made this paper attempts to estimate the magnitude of these external costs and benefits for the case of renewable technologies in scotland a country which has set particularly ambitious targets for expanding renewable energy the external effects we consider are those on landscape quality wildlife and air quality we also consider the welfare implications of different investment strategies for employment and electricity prices the methodology used to do this is the choice experiment technique renewable technologies considered include hydro on shore and off shore wind power and biomass welfare changes for different combinations of impacts associated with different investment strategies are estimated we also test for differences in preferences towards these impacts between urban and rural communities and between high and low income households

promotion of the agricultural sector and political power in austria in most industrialized countries farmers as a small and well orgnized group are ableto influence government decisions to get rent creating proposals enacted two different viewsare presented to explain why the chicagoan view efficient redistribution hypothesis and the virginian view inefficient outcome of political bargaining a vertically structuredempirical model of the austrian farm sector is employed to test both hypotheses quantitativeresults of the welfare transfers from consumers taxpayers to farmers and agribusiness firmsare derived and the political weights of these groups are presented

political economy of u s sugar policies this article examines political economic decision making with respect to u s sugar policies it evaluates the responsiveness of target prices and import quotas levels to changes in a the economic surpluses of market participants and b the federal budget deficit results indicate a weak linkage between sugar producer surplus and subsequent target prices levels but a strong linkage between the federal budget deficit and subsequent import quota levels the influences of sugar users corn sweetener producers and foreign countries are also examined

the nature and extent of the market for high quality beef in japan before the abolition of import quotas it is examined whether wagyu beef produced in japan and high quality beef produced in the united states and exported to japan are components of the same product market in addressing this issue an approach is used for defining the nature and extent of a product market relying on the concept of instantaneous causality the results for selected cuts of beef suggest that the markets are in fact separate

the political economy of sugar legislation the findings of this paper are a rather straightforward account of the political economy of senatorial voting on the sugar program in the spirit of stigler and peltzman s accounts of interest group activity voting on sugar is indeed related to the concentration of economic interests in the senators states states with high concentrations of sugar growers and processing tend to vote for the program those with high concentration of users tend to vote against it the emergence of corn syrup as a sugar substitute and its subsequent interests in the program further supports this perspective these concentrated interests are associated with conditions ripe for overcoming the collective action problem and we infer use their organizations to influence senatorial behavior the political variables suggest countervailing forces which can be interpreted at least in part as further examples of organized here politically organized influences on the interests of senators thus while the model is one of opposing interests those of producers and users tend to influence different senators the major group interest trade off then is between the pull of organized interests in the constituency with that of party organization at the national or national institutional level at least for those for whom the pull is in opposite directions

a note on the estimation of the demand for sugar in the usa in the presence of measurement error in the data inaccuracy in the measurement of the price data for the substitute sweeteners for sugar is a problem encountered in the estimation of the demand for sugar two diagnostics are introduced to assess the effect that this measurement error has on the estimated coefficients of the sugar demand relationship the regression coefficient bounds diagnostic is used to indicate a range in which the true price responsiveness of consumers to changes in the price of sugar substitutes lies the bias correction factor is computed to evaluate the magnitude of the overestimation of the responsiveness of the quantity of beverage sugar and non beverage sugar demanded to a change in the price of sugar

measuring the social costs of suboptimal combinations of policy instruments a general framework and an example abstract since most agricultural programs employ two or more policy instruments simultaneously it is notable that little research has attempted to find optimal instrument combinations and no research exists which evaluates the social costs unrealized benefits of combining instruments suboptimally in our paper we report a simple and feasible method to find optimal policy instrument combinations and we provide the first general formal approach to measuring the social costs of suboptimal policy instrument combinations our approach is illustrated in an analysis for five major u s crops corn feed grains wheat rice cotton the simple model we employ for the illustration suggests that except for the feed grains program the observed programs combined policy instruments quite suboptimally we conclude that agricultural economics research now can and should begin placing increased emphasis on studying optimal policy instrument combinations

estimating the degree of market integration existing tests of spatial market integration are commonly based on statistical criteria without an explicit link to an economic model of price determination this article proposes new measures of market integration defined directly in terms of a well known spatial price determination model and develops an econometric methodology for estimating these measures due to the intractability of the conditional density function of prices we use indirect inference to estimate the model parameters and market integration measures the methodology is illustrated with simulated data and is applied to soybean price data for the united states brazil and the eu copyright 2008 oxford university press

testing economic theories of voter behaviour using micro data three hypotheses often encountered in economic analyses of voter behaviour are tested using an extensive data set derived from six consecutive national election studies in the netherlands in the period 1971 1986 these hypotheses are i the party choice and turnout decisions are taken sequentially and independently by voters ii social gorups play a central role in the decisionmaking processes in the political sphere iii the effect of individual level variables on party choice is stable over time the results provide support for the first hypothesis and partial support for the second where the specific categorization of individuals to be chosen is a matter that needs further investigation the third hypothesis is rejected by the data the relationship between the variables chosen and party choice proved to be unstable

endogenous price policies and international wheat prices vanzetti and kennedy s herein vk comment on our earlier paper sarris and freebairn gives us the opportunity first to clarify the differences in the models to present a generalization of the analysis that includes their results as well as ours as special cases and then to point out some salient features of our model that seem to have been unnoticed by them consider our model of a homogenous commodity produced consumed and traded by n countries which are characterized by the following linear demand and supply curves notation follows vk except that we maintain the additive random variables and hence keep the time subscript

a dynamic model of voter behavior and the demand for public goods among social groups in great britain abstract a dynamic model of voter behavior is discussed explaining transitions in party choice by imputed party responsibilities with respect to public and private consumption possibilities the model uses a group framework to explicitly describe voter interests it allows for an estimation of the relative preference for public goods as determined by the revealed preference mechanism of voting the model is compared to popularity functions in their general form an empirical application to great britain is presented it appears that retired individuals have the highest relative preferences for public goods followed by housewives men manual workers self employed and non manual workers

redistribution effects of energy and climate policy the electricity market abstract energy and climate policies are usually seen as measures to internalize externalities however as a side effect the introduction of these policies redistributes wealth between consumers and producers and within these groups while redistribution is seldom the focus of the academic literature in energy economics it plays a central role in public debates and policy decisions this paper compares the distributional effects of two major electricity policies support schemes for renewable energy sources and co2 pricing we find that the redistribution effects of both policies are large and they work in opposed directions while renewables support transfers wealth from producers to consumers carbon pricing does the opposite more specifically we show that moderate amounts of wind subsidies can increase consumer surplus even if consumers bear the subsidy costs co2 pricing in contrast increases aggregated producer surplus even without free allocation of emission allowances however not all types of producers benefit these findings are derived from an analytical model of electricity markets and a calibrated numerical model of northwestern europe our findings imply that if policy makers want to avoid large redistribution they might prefer a mix of policies even if co2 pricing alone is the first best climate policy in terms of allocative efficiency

integrated evaluation of embodied energy greenhouse gas emission and economic performance of a typical wind farm in china an integrated evaluation of embodied energy greenhouse gas ghg emission and economic performance of a wind power generation system in china was conducted using a range of indicators energy and ghg emission costs per unit profit are proposed as goal functions for potential low carbon high efficiency optimization of the wind power generation system results show that the energy efficiency and ghg emission per energy output of the system are 0 034 mj mj and 0 002 kgco2 eq mj respectively compared with other power generation systems wind power is more competitive in terms of both energy savings and ghg emission reduction if wind turbine recycling in the dismantling phase is taken into consideration 46 7 of energy will be saved with a material recycling rate of 0 467 scenario analyses are done to investigate economic feasibility from the perspective of investors and government finally suggestions are provided to shed light on wind industry development in china

gains and losses of sugar program policy options high domestic sugar prices supported by u s sugar policy have induced a significant substitution of corn sweeteners for sugar recognizing the close relationship between sugar and corn sweeteners this study applies a general equilibrium approach to evaluate the distributional effects of three different policy options i e quota tariff and deficiency payment on sugar related interest groups the results show that the current quota policy intended ostensibly to protect domestic sugar producers have hurt foreign exporters it will harm domestic sugar producers if the trend continues additionally the quota program is the most expensive of the options considered

the political costs of taxes and government spending the marginal political costs of different types of taxes and government spending as well as voter preferences over different fiscal variables are examined using two different specifications for political cost one based on the probability of incumbent defeat and the other based on the incumbent s percentage of the vote models associated with these two specifications in which voting behaviour depends on disaggregated taxes and government expenditures are estimated using clata from canadian provincial elections the empirical results which indicate that different types of taxes and expenditures have quite different marginal political costs have important implications for models that incorporate voter pref erences

antitrust and merger policy a review and critique a ny antitrust policy that tries to put some restrictions on mergers must have a conceptual basis one such framework might be a populist approach in which only absolute or relative size of the merger partners and or the resulting entity would be the criterion political rhetoric often embodies this approach an alternative approach the one that underlies the 1982 department of justice merger guidelines concerns itself with the possible exercise of market power 1 i believe this second approach is more consistent with the language of section 7 of the clayton act itself which instructs the department of justice and the federal trade commission to prevent those mergers the effects of which may be substantially to lessen competition or to tend to create a monopoly this market power approach also places merger policy in a realm that is susceptible to economic analysis for this reason as well this approach appeals to me the merger guidelines are firmly rooted in the standard oligopoly theory developed by chamberlin 1933 fellner 1949 and stigler 1964 and strengthened

the importance of revenue sharing for the local economic impacts of a renewable energy project a social accounting matrix approach allan g mcgregor p and swales k the importance of revenue sharing for the local economic impacts of a renewable energy project a social accounting matrix approach regional studies ambitious renewable energy targets are requiring investments in new renewable capacity in areas where acceptance could be affected by the potential economic benefits to the locality at the same time new renewable energy projects primarily for onshore wind capacity might offer a route by which peripheral economic development policies can be supported the economic impacts of these projects are difficult to quantify using input output techniques but can be more appropriately handled within a social accounting matrix sam framework a social accounting matrix for the shetland islands off the north coast of mainland scotland is used to evaluate the potential local economic and employment impacts of a large proposed onshore wind energy project sensitivity analysis reveals the relative importance of the level of commu

revealed preferences between public expenditures and taxation cuts public sector choice abstract a survey was carried out in england and wales to provide information on how people would allocate a sum of money between increases in government spending and lowering taxes by means of a coupon scale questionnaire relatively new to this country and used for the first time to ascertain choice at the central and local government level we hoped to overcome the problem of getting people to reveal their true preferences statistical analysis of the data reveals some significant differences in responses

applied general equilibrium welfare analysis harberger has long advocated a particular technique for measuring the sum of all effects of an intervention both in the intervened in and related markets the technique is to calculate consumer and producer surplus changes behind demand and supply curves that are explicitly general equilibrium ge that is along curves that hold constant demand and supply conditions in related markets but not prices by calculating surplus changes with respect to such curves one simulates the equilibrium price paths in other markets resulting from the intervention and captures the sum of the welfare effects several authors have elaborated on harber

on the internal contradictions of the law of one price as stated originally the venerable law of one price succinctly describes long run equilibrium in a perfectly competitive market the law was later amended defining a market as the geographic area within which the same thing sells for the same price at the same time allowance being made for transportation costs modified in that way the law has two plausible interpretations by one interpretation every production site is a market by the other prices in fact do not differ by transportation costs the transportation cost amendment thus introduces internal contradictions that render the revised law of one price either useless or wrong jel d40 l10 a market according to the masters is the area within which the price of a commodity tends to uniformity allowance being made for transportation costs that is two places are in the same market for a good if the prices at the two places differ by transportation costs stigler 1987 77 economic terms seem to pass in their historical development through a series of stages which without pretension to rigidness may be described as follows first no definition is given but it is assumed that every one has a sufficiently clear idea of the subject to make a formal definition unnecessary second a definition is attempted and a number of exceptional forms are noted third with the further increase of data the relative importance of the various forms changes confusion in discussion is introduced logomachy takes the place of constructive investigation fourth a complete classification of the forms embraced under the original term is made and problems are investigated with reference to these classes the bewildering vagueness of economic theory is largely due to the fact that the terms used are in all of these stages of development moore 1906 211 i introduction delineating the boundaries of markets engaged economists attention early on many product attributes are important to consumers but price is an objectively measurable margin along which rivalry is sharply engaged market prices transmit information about changing demand and supply conditions to buyers and sellers and widening price cost margins signal profit opportunities to which alert entrepreneurs respond price consequently has held center stage in economists attempts to define markets augustin cournot 1927 51 for instance wrote that a market is the entire territory of which the parts are so united by the relations of unrestricted commerce that prices take the same level throughout with ease and rapidity alfred marshall 1930 325 supplied a similar definition in his celebrated declaration that the more nearly perfect a market is the stronger is the tendency for the same price to be paid for the same thing at the same time in all parts of the market more recently joseph stiglitz 1993 19 summarized what he called the law of the single price stating that under this law there is a uniform price in the market and price differences are quickly eliminated by arbitrage 1 marshall 1930 325 introduced an important qualification however when he observed that but of course if the market is large allowance must be made for the expense of delivering the goods to different purchasers each of whom must be supposed to pay in addition to the market price a special charge on account of delivery that qualification subsequently found its way into stigler s price theory textbook quoted in the epigraph intentionally or not the law of one price was thereby converted into a law of different prices other economists subsequently added transaction costs and information costs to the list of caveats culminating in a multiplicity of prices nevertheless claimed to be consistent with the law of one price economics has few laws

competition in interrelated markets an empirical study abstract this paper studies competition in small concentrated and interrelated markets our data set consists of price information from 486 driving schools in 235 local markets in sweden which gives a large sample to test hypotheses on how market structure influences competition the results show that the price in a market is lower if prices in nearby markets are low and the distances to them are short as suggested in models of spatial competition moreover we find that prices in closely located markets are interdependent it is also shown that prices are increasing in firm concentration within a market as most theories of oligopoly predict

the non use benefits of enhancing forest biodiversity a contingent ranking study until recently the majority of commercial forestry in the uk has comprised blanket planting of non native coniferous species which typically do not offer a high level of biodiversity however the uk government and consequently the uk forestry commission are committed under various international agreements to conserve and enhance biodiversity in british forests the study reported in this paper estimates that substantial non use values would be generated if the forestry commission were to continue in its current efforts to develop management practices that promote an increase in biodiversity across a large area of its commercial holdings in remote parts of the country which are seldom visited rather than adopting a referendum type contingent valuation method a discrete choice contingent ranking approach is used to estimate the general public s willingness to pay to increase the area of these forests managed under each of three forest management standards designed to offer increasing levels of biodiversity at the expense of commercial timber production this permits relative preferences for different forest management standards to be measured at the same time as willingness to pay to enhance biodiversity

exact consumer s surplus and deadweight loss consumer s surplus is a widely used tool in applied welfare economics both economic theorists and cost benefit analysis often use consumer s surplus despite its somewhat dubious reputation the basic idea is to evaluate the value to a consumer or his willingness to pay for a change in price of a good from say pricep to pricep because price changes affect consumer welfare an evaluation of this effect is often a key input to public policy decisions yet consumer s surplus is probably the most controversial of widely used economic concepts both paul samuelson and ian little conclude that the economics profession would be better off without it it is my feeling of the situation that substantial agreement exists on the correct quantities to be measured the amount the consumer would pay or would need to be paid to be just as well off after the price change as he was before the price change the quantities correspond to john hicks compensating variation measures an alternative measure which takes ex post price change utility as the basis of comparison is hicks equivalent variation the controversy arises in the measurement of these quantities the usual measurement procedure is to use the area to the left of the marshallian market demand curve between two price levels jules dupuit originated this measure of welfare change and alfred marshall and hicks derived appropriate conditions for its use the primary condition for the area to the left of the demand curve to correspond to the compensating variation is to have constant marginal utility of income marshall gave this condition and if it holds the same quantity will be derived as the area to the left of the compensated hicksian demand curve this area to the left of the compensated demand curve is exactly what the compensating variation and equivalent variation measure thus the constant marginal utility of income is a sufficient condition for marshallian consumer s surplus to be equal to hicks consumer s surplus in this case arnold harberger s plea to use the welfare triangle as one half times the product of the price change times the quantity change to measure deadweight loss corresponds to the correct theoretical amount of welfare change in a recent paper robert willig derives bounds for the percentage difference between the correct measure of either the compensating or equivalent variation and the marshallian measure derived form the market demand curve his bounds which depend on the income elasticity of demand for the single good in the region of price change being considered as well as the proportion of the consumer s income spent on the good demonstrate that the marshallian consumer s surplus is often a good approximation to hicks consumer s surplus the fact that the proportion of the consumer s income spent matters as well as the income elasticity was first pointed out by harold hotelling willig contends that the approximation error will be less than the errors involved in estimating the demand curve thus he hopes to remove the need for apology that applied economists often need to give to theorists who remark on the inappropriateness of using marshallian consumer s surplus to measure welfare change however in this paper i show that for the case primarily considered by willig of a single price change which is also the situation in which consumer s surplus is often used in applied work no approximation is necessary professor of economics massachusetts institute of technology and research associate national bureau of economic research i would like to thank peter diamond erwin diewert daniel mcfadden robert merton robert solow hal varian joel yellin and the referees for help and comments research support from the national science foundation is acknowledged the reason that we still have two rather than one of samuelson s six measures of consumer s surplus arises from an index number problem of the correct basis for the welfare comparison i will give both measures but plan to concentrate on the compensating variation

market definition in antitrust analysis a regression based approach alleged violations of either sherman 2 s antimonopoly strictures or clayton 7 s proscriptions against anticompetitive mergers necessarily involve a particular product and must occur in a particular place that is the plaintiff in either a 2 or 7 suit must define a relevant market within which the violation alleged has occurred even in the most mundane antitrust analysis however market definition is rarely readily accomplished and unaccompanied by a series of caveats and the possibility of the opposing parties in an antitrust suit failing to contest each other s proffered definition is virtually nil 2 because economists from

is renewable energy a cost effective mitigation resource an application to the spanish electricity market abstract this paper evaluates the net effect of renewable energy policy in spain from 2002 to 2017 and calculates its cost effectiveness in terms of co2 emission reductions in the production of electricity our conclusions indicate that although the phasing out of feed in tariffs reduced the regulatory costs it also limited renewable participation in the electricity market leading to an increased electricity price and higher emissions according to our results the joint effect of i the value of avoided emissions due to renewable energy participation and ii the merit order effect was able to compensate for the regulatory costs subsidies up until 2010 while the sign of the net effect was reversed from 2011 to 2017 finally we find that the economic implications of emission reductions are highly dependent on how the social cost of carbon is measured

danish energy reform policy implications for renewables abstract for decades renewables have been promoted in denmark by the feed in model fixed price scheme with favourable tariffs for green electricity this has resulted in successful penetration of wind power covering more than 13 of danish electricity consumption 2001 changing the promotional scheme to a quota based system with tradable green certificates has been on the political agenda since 1999 this article discusses danish energy policy with focus on the implications for the penetration and deployment of renewables it has turned out to be more complicated than anticipated to create an efficient operational system for trade in green certificates and the starting date for trading has been postponed several times the national green certificates market was to be fully operational by the beginning of 2003 however political negotiations in the fall of 2001 seem to postpone the initiation of the certificate market until 2005 transitional rules for green electricity during the period from 2003 to 2005 are under negotiation after a national election in november 2001 this situation has created widespread uncertainty among potential investors in green electricity the article evaluates a number of problems related to the shift in danish energy policy

the effect of feed in tariffs on the production cost and the landscape externalities of wind power generation in west saxony germany although wind power is currently the most efficient source of renewable energy the cost of wind electricity still exceeds the market price subsidies in the form of feed in tariffs fit have been introduced in many countries to support the expansion of wind power these tariffs are highly debated proponents say they are necessary to pave the way for decarbonising energy production opponents argue they prevent a welfare optimal energy supply thus in a case study we try to shed light on the welfare economic aspect of fit by combining spatial modelling and economic valuation of landscape externalities of wind turbines we show for the planning region west saxony germany that setting fit in a welfare optimal manner is a challenging task if set too high the production costs are overly increased lowering social welfare if set too low energy production targets may not be reached and or external costs are overly increased again lowering social welfare taking a closer look at the tariffs offered by the german renewable sources energy act we find for west saxony that the tariffs quite well meet economic welfare considerations one should note however that this finding might apply only to the present data set

how does market power affect the impact of large scale wind investment in energy only wholesale electricity markets in the short run it is well known that increasing wind penetration is likely to reduce spot market electricity prices due to the merit order effect the long run effect is less clear because there will be a change in new capacity investment in response to the wind penetration in this paper we examine the interaction between capacity investment wind penetration and market power by first using a least cost generation expansion model to simulate capacity investment with increasing amounts of wind generation and then using a computer agent based model to predict electricity prices in the presence of market power we find the degree to which firms are able to exercise market power depends critically on the ratio of capacity to peak demand for our preferred long run generation scenario we show market power increases for some periods as wind penetration increases however the merit order counteracts this with the results that prices overall remain flat returns to peakers increase significantly as wind penetration increases the market power in turn leads to inefficient dispatch which is exacerbated with large amounts of wind generation

revealed preferences for public goods applying a model of voter behavior most analyses of preferences for government supplied goods disregard the fact that in a democratic society these preferences are revealed by an individual choice the vote in this paper this is taken account of in a model explaining the dynamics in voting behavior in a multi party system the model assumes that voters may be categorized into k groups of individuals pursuing the same interests who remember how parties do in representing these interests given the level to which they are held responsible for government policy the model allows one to estimate party identification sensitiveness to economic performances time preference and relative preferences for public versus private goods all for each of the groups furthermore the model allows for an estimation of the level to which various parties are held responsible for government policies

public goods an exercise in calibration this paper considers a measure of the publicness of goods and services implicit in responses that individuals make when asked about public sector spending at the limit all consumers consume equal amounts of a public good thus any differences between an individual s self interest preferences and public interest preferences cannot be based on differential provision but only on differences in the individual s public and self interest utility functions if we rule out the latter self interest and public interest preferences for a pure public good are identical using sample survey data it is possible to calibrate the public good content of different public goods

the integration of the market for soybeans and soybean products abstract this article addresses the question of whether soybeans soybean meal and soybean oil produced in the usa and exported were part of a single world geographic market during the decade of the 1980s an answer to this question is sought using an approach to defining a geographic market based on the notion of instantaneous causality the empirical results based on prices for soybeans soybean meal and soybean oil for three spatially diffuse locations suggest that there was but a single identifiable world market for these commodities over the period of study this has implications for the continued presence of soybean production subsidies and discussions on international agreements designed to reduce or eliminate these subsidies

valuing the visual impact of wind farms an application in south evia greece abstract this study presents an application of the contingent valuation method cvm for valuing the landscape externalities associated with the large scale exploitation of wind power at the local level the survey was undertaken in south evia greece which is a region with rich wind energy potential and a considerable number of wind farms in operation during the period of the study the results showed that 57 of the households are not willing to contribute financially in order to implement interventions to mitigate the visual impact of wind farms he mean willingness to pay per household to avoid the visual impact attributed to the installation of new wind farms in the area in question was estimated at 41 6 year taking into account all households of the sample this estimate is relatively lower compared to the results of other relevant studies as shown by a meta analysis developed based on these studies this is mainly attributed to the great recession in greece and the reduced available income of households

trade protection and the role of campaign contributions in u s food and tobacco industries to exert political pressure an organization must be capable of obtaining contributions from its members for lobbying activities for this reason past studies analyzing the determinants of political outcomes such as tariffs such as caves 1976 lavergne 1983 saunders 1980 salamon and siegfried 1977 ray 1981a 1981b have used an industry s structural characteristics such as the number of firms and the sales concentration ratio to account for political activity more recently baldwin 1989 among other economists has advocated the study of more direct indicators of lobbying such as political funding levels and the number of employees supported by private interests the importance of lobbying activity in determining the levels of trade protection depends upon the responsiveness of government to such activity bhagwati 1989 distinguishes two types of government behavior passive behavior and self willed behavior under the first type policymakers maximize political support and will be more likely to respond to lobbying activity 1 however if behavior is driven by self willed principles then policymakers will make choices that reflect the needs of their constituents and will be less susceptible to special interest group pressures viewed from the perspective of an industry that is willing to spend resources in order to influence political outcomes contributions to political candidates can have a facilitative and or a persuasive role 2 under a facilitative role campaign contributions are merely a transaction cost for granting access and enabling the industry to inform politicians about the industry s needs in this case the industry structural characteristics are what lend political weight under a persuasive role campaign contributions are independently effective in influencing political outcomes regardless of the industry s structural attributes combining the latter role with the passive government behavior discussed above gives rise to models of exchange and political investment as in the work of peltzman 1976 concern over identifying the determinants of trade barriers and the role of campaign contributions in particular follow from three considerations the first consideration is efficiency if institutional arrangements encourage lobbying as a means of influencing policy choices then a significant waste of resources may occur through competition in the political arena 3 lobbying therefore may result in a decline of overall economic efficiency the second consideration is the dominance of special interests over social concerns the arguments for protection often include protection of jobs and unfair competition which may differ from the factors that drive the policy decisions such as the strength of special interest lobbying the third consideration is redistributional justice a significant redistribution of wealth may occur as trade barriers increase prices and domestic industry profits at the expense of domestic consumers the objectives of this article are twofold the first objective is to explain the variation of the level of trade barriers tariffs and import quota tariff equivalents these will be explained in terms of industry structure characteristics number of firms seller concentration and geographic dispersion comparative disadvantage and lobbying activities using data from the u s food and tobacco manufacturing industries for the empirical analysis the second objective is to ascertain the role and importance of lobbying activities in determining the levels of trade barriers a novel feature of this article is that it incorporates more direct measures of lobbying activity such as the contributions of political action committees pacs associated with the industries affected by the trade barriers it also emphasizes the need to consider contributions and protection together in order to capture the exchange between political investments and income transfers as shown in snyder 1990

retrospective modeling of the merit order effect on wholesale electricity prices from distributed photovoltaic generation in the australian national electricity market in electricity markets that use a merit order dispatch system generation capacity is ranked by the price that it is bid into the market demand is then met by dispatching electricity according to this rank from the lowest to the highest bid the last capacity dispatched sets the price received by all generation ensuring the lowest cost provision of electricity a consequence of this system is that significant deployments of low marginal cost electricity generators including renewables can reduce the spot price of electricity in australia this prospect has been recognized in concern expressed by some coalfired generators that delivering too much renewable generation would reduce wholesale electricity prices in this analysis we calculate the likely reduction of wholesale prices through this merit order effect on the australian national electricity market we calculate that for 5 gw of capacity comparable to the present per capita installation of photovoltaics in germany the reduction in wholesale prices would have been worth in excess of a 1 8 billion over 2009 and 2010 all other factors being equal we explore the implications of our findings for feed in tariff policies and find that they could deliver savings to consumers contrary to prevailing criticisms that they are a regressive form of taxation

gatt and agriculture the role of special interest groups a the 1980s have been a decade of crisis for much of world agriculture following a period of unusual growth in world demand and trade the 1980s have witnessed a decline in exports plummeting agricultural prices widespread economic distress in farming and associated industries and rising trade tensions as nations have sought to protect their farmers institute for international economics p 1 b the playing field in world agricultural trade is uneven some countries subsidize their exports some tax imports others tax exports most nations try to help their farmers through domestic farm programs all these influences converge to distort the price signals that would otherwise govern supply and demand in a freer trade environment the resulting hodgepodge has disadvantaged many producers in the united states and other countries even though their farm products are among the least expensive to produce ballenger dunmore and lederer p 1 c the problems of agriculture have engaged the attention of world leaders and have become a major issue in the uruguay round of multilateral trade negotiations under the general agreement on tariffs and trade gatt a number of fora including the gatt ministerial meeting at punta del este in september 1986 that launched the uruguay round the organization for economic cooperation and development oecd ministerial meeting in may 1987 and the venice summit of industrial country leaders in june 1987 have issued declarations which support liberalization of agricultural trade and reform of domestic farm policies trade ministers of the gatt countries will also meet in december 1988 in

an economic assessment of windfarm power generation in scotland including externalities abstract this paper uses cost benefit analysis to assess the economic feasibility of a large scale windfarm project taking into account positive and negative externalities of generation the issue of non use value i e a welfare change among those who will never visit the area and see the windfarm is addressed with reference to the study by bergmann et al 2006 valuing the attributes of renewable energy investments energy policy 34 1004 1014 which determined a social cost of 19 40 per household for the non use disamenity associated with a large scale windfarm in scotland this paper demonstrates the extent to which this estimate affects the economic feasibility of the project we find that for all but one of the 16 scenarios considered the project returns a positive net present value despite the inclusion of this non use value thus suggesting that in these cases the windfarm delivers a net welfare gain to society

exploiting the oil gdp effect to support renewables deployment the empirical evidence from a growing body of academic literature clearly suggests that oil price increases and volatility dampen macroeconomic growth by raising inflation and unemployment and by depressing the value of financial and other assets surprisingly this issue seems to have received little attention from energy policy makers in percentage terms the oil gdp effect is relatively small producing losses in the order of 0 5 of gdp for a 10 oil price increase in absolute terms however even a 10 oil price rise oil has risen at least 50 in the last year alone produces gdp losses that could they have been averted would significantly offset the cost of increased re deployment this paper draws on the empirical oil gdp literature which we summarize to show that i by displacing gas and oil renewable energy investments can help nations avoid costly macroeconomic losses produced by the oil gdp effect and ii that these avoided losses represent a significant external macroeconomic benefit of such investments we show that a 10 increase in re share avoids gdp losses in the range of 29 53 billion in the us and the eu 49 90 billion for oecd these avoided losses offset one fifth of the re investment needs projected by the erec and half the oecd investment projected by a g 8 task force for the us the figures further suggest that each additional kw of renewables on average avoids 250 450 in gdp losses a figure that varies across technologies as a function of annual capacity factors we approximate that the offset is worth 200 kw for wind and solar and 800 kw for geothermal and biomass while we focus only on renewables the gdp offset will apply in some measure to other non fossil technologies including energy efficiency dsm and nuclear the societal valuation of non fossil alternatives must reflect these avoided gdp losses whose benefit is not fully captured by private investors this said we fully recognize that wealth created in this manner does not directly form a pool of public funds that is easily earmarked for renewables support finally the oil gdp relationship has important implications for correctly estimating direct electricity generating cost for conventional and renewable alternatives and for developing more useful energy security and diversity concepts we also address these issues

using conjoint analysis to quantify public preferences over the environmental impacts of wind farms an example from spain this paper focuses on the effect on people s utility of the potential environmental impacts of wind farm developments we report on research designed to provide insight into their preferences and we show how two alternative choice modelling techniques can be used to estimate them our results show that significant social costs in the form of environmental impacts can be associated with wind farm developments as relative environmental values are revealed by these methods it would be possible to develop wind farms in such a way that minimises the total social costs of the investment and which maximises its net benefits

assessing the impact of the sugar programme on the us economy abstract this study examines the effect of the sugar tariff rate import quota program on the united states economy based on a computable general equilibrium model the analysis suggests that a complete elimination of the sugar program would reduce output for all producing sectors by about 2 85 billion for producing sectors besides the agriculture programme crops crude oil and petroleum refining sectors output would increase by about 2 98 billion additionally there would be an increase of about 197 million and 121 million in the consumption of goods and services and in welfare respectively the government sector would realize a reduction in revenue of about 15 million

the fable of the bees revisited causes and consequences of the u s honey program abstract in his 1973 paper steven cheung discredited the fable of the bees by demonstrating that markets for beekeeping services exist and function well although economists heeded cheung s lessons policy makers did not the honey program has operated for over 50 years supporting the price of honey through a variety of mechanisms its effects were minor before the 1980s but then became important with annual government expenditures near 100 million for several years reforms of the program in the late 1980s reduced its market effects and budget costs returning it to its original role as a minor commodity program although the 1996 farm bill formally eliminated the honey program it was reinstated in the 2002 farm bill we measure the historical welfare effects of the program during its various incarnations examine its frequently stated public interest rationale the encouragement of honeybee pollination and interpret its history in light of economic theories of regulation

exogeneity tests of market boundaries applied to petroleum products us antitrust law makes market definition and the calculation of marketshare statistics an integral part of the determination of the anticompetitive impact of a merger because markets frequently overlap however market definition is rarely an easy task a statistical test that can be used as an aid in defining markets is proposed here time series techniques are used to test if price in one region is exogenous to the process that determines price in another the rejection of exogeneity can be an indication that the two regions are economically linked and thus may belong to a common geographic market the test is applied to petroleumproduct prices from various regions of the united states time series techniques have long been appreciated by macroeconomists the uses to which they have been put range from testing for the exogeneity of variables used in the construction of macroeconomic models sims 1972 for example to discovering empirical regularities in macroeconomic data without imposing a priori structure on the observations ashenfelter and card 1982 for example in contrast these techniques have not been so

voluntary export restraints as protection policy the u s beef case there are several well known implications of international trade theory which are relevant to our study with a tariff an importing country s welfare can improve only if the excess supply curve is upward sloping under the large country assumption bhagwati has shown that a quota used by an importer can be equivalent to a tariff and mintz has contrasted features of tariffs quotas and vers empirical work has focused largely on the effects of tariffs and equivalent quotas generally exporting countries lose from such trade barriers in contrast we find that exporting countries gain and importing countries lose with a ver we also contrast the gains and losses of vers in the case of frozen boneless beef to an optimal tariff and optimal export tax the theoretical implications of vers for beef exporters were first recognized by freebairn and gruen

the economic effects of supply controls the simple analytics of the u s peanut program a gricultural commodity programs employ a wide variety of policy tools to regulate u s agriculture price supports are the most common form of intervention but rights to sell at the supported price are allocated very differently under different commodity programs under recent feed grain programs for example the right to sell at the supported price is linked to acreage set asides agreements not to produce on certain acres in other programs sales by individual farmers are controlled under marketing orders sponsored by the u s department of agriculture usda 2 a third method is through permanent maketing quotas that directly limit output only two major commodity programs those for tobacco and peanuts currently allocate the right to sell in this way the peanut program is the subject of this article 3

the composition of government expenditure economic conditions and preferences i introduction there are substantial variations among countries in their tax and expenditure policies even among developed democracies sharing similar economic and political regimes as discussed by tanzi 2000 and alesina and glaeser 2004 this study examines the question of why expenditure patterns differ among democratic countries using a sample of countries with a high democracy index section ii presents empirical evidence showing that the united states has a low ratio of expenditure on transfer payments to that on public goods despite its high income inequality scandinavian countries typically combine low inequality and much higher expenditure on transfer payments relative to public goods british commonwealth countries have higher income inequality than scandinavian countries and yet a lower ratio of transfer payments to public goods expenditure these findings seem inconsistent with the prediction of a large theoretical literature more basic income inequality leads to a larger extent of redistributive expenditure 1 however the observed partial relationship between the expenditure composition and income inequality is possibly obscured by many other factors reflecting differences in economic and demographic conditions or cultural differences across countries see lind 2005 and alesina and glaeser 2004 in order to attempt to understand the way in which cultural factors and economic conditions may combine to influence the composition of expenditure this paper examines the division of expenditure between public goods and a transfer payment under majority voting in the context of an overlapping generations model by taking a growth context and focusing on the expenditure composition for a given tax rate the model allows for a range of factors which may contribute to cross country variations in expenditure compositions such as income and population growth rates and the discount factor in particular cultural factors are captured by a parameter in the utility function reflecting individuals preference for public goods relative to private goods consumption direct independent evidence regarding preferences for public goods is extremely difficult to obtain in view of well known problems of preference revelation mechanisms a wide range of studies however take such differences as their starting point see for example haufler 1996 the transfer payment in the model is referred to as a pension as it is received in the second period of life 2 however it may be thought of more broadly as a standard type of income transfer as it involves in the present overlapping generations framework a decision regarding income shifting between periods within the life cycle as well as intra and intergenerational redistribution members of each cohort are considered to vote on their desired pension during the retirement period on the understanding that during the working period each cohort finances the expenditure previously agreed by the preceding cohort and voters are aware of the nature of the government budget constraint therefore there is a social contract in which each generation in the retirement period is able to benefit from the income and population growth of the following generation the condition under which the social contract is supported by a majority of the members of any cohort involves extending the condition obtained by aaron 1966 and samuelson 1958 the model yields a closed form solution for the majority choice of the expenditure ratio defined as the ratio of transfer payments to public goods expenditure consistent with previous theoretical literature the model predicts a positive relationship between income inequality and the expenditure ratio a numerical exercise is then implemented to examine the sensitivity of the expenditure ratio to variations in model primitives where baseline parameter values are calibrated to the dataset for a group of democratic countries

geographic markets causality and railroad deregulation this paper presents an approach to defining a market using the notion of instantaneous causality the market for which the approach is empirically implemented is the flour market in the united states over the period january 1979 through october 1982 one anomaly over this period was the deregulation of railroad rates in october 1980 the empirical results based on three spatially diffuse cities suggest that the market is national in scope and that after railroad deregulation the price interrelationship between cities was strengthened

judging agricultural policies a survey this survey provides a structured picture of 40 years of literature which uses welfare economic tools to judge agricultural policy challenges and developments of normative agricultural policy analysis are discussed in an easily accessible graphical framework it is shown how the literature has gone from examining a very small discrete set of simple policies to a much broader often continuous set of policies that combine policy instruments simultaneously the importance of the pareto criterion used to explore the limits of how government can affect welfare is revealed moreover given the importance of the objective of income redistribution in agricultural policy agricultural economists have often departed from the purely efficiency oriented tradition in economics it is shown that they have tried to incorporate equity considerations by either adding these criteria as constraints to the social welfare function or directly incorporating these criteria in the functional form of the social welfare function

the impact of renewables on electricity prices in germany an update for the years 2014 2018 abstract increasing electricity prices for private consumers manifested the idea of price boosting renewable energy sources in germany s public opinion literature however widely concurs that wind and photovoltaics have a reducing effect on spot market electricity prices the underlying merit order effect led to historically low exchange prices in the past years to quantify this effect this study analyses historic demand and supply curves from the german day ahead market to reconstruct electricity prices without the feed in of wind and photovoltaics from 2014 to 2018 results show that renewable energy sources considerably reduced electricity prices by between 2 89 ct kwh in 2014 to 8 89 ct kwh in 2017 this allowed german end consumers to save a total of 40 billion from 2014 to 2018 additionally wind and pv contributed significantly to security of supply demand could not have been met by domestic conventional and nuclear generation capacities in up to 424 hours in 2018 the study highlights the necessity to further speed up the expansion of wind and photovoltaics

on the extent of the market wholesale gasoline in the northeastern united states this paper develops the classical view of the extent of markets by introducing explicitly in the analysis the concept of arbitrage costs arbitrage or transaction costs imply that market boundaries are essentially stochastic while a set of products or regions may have binding arbitrage conditions i e may be in the same market at a given point in time they may not at another thus in defining a market the probability that a set of agents or regions would h3ve binding arbitrage conditions has to be assessed this paper develops an econometric methodology to estimate the transaction costs required to arbitrage among a given set of products as well as the probability that that set of products would be bound by binding arbitrage condi tions finally the methodology is applied to wholesale gasoline in the northeastern part of the united states address for communications pablo t spiller herbert hoover memorl l bldg 9348 stanford ca 94305

resolving the impasse on hospital scale economics a new approach the existence of scale economies in hospitals in important for both public and managerial policy yet production and cost function studies have found conflicting evidence more recently more sophisticated studies have typically found scale diseconomies which is inconsistent with the views of industry participants and observers in the early 1980s california deregulated both private and public health insurance medical which provides a natural laboratory for examining hospital efficiency using stigler s original and multivariate survivor analysis we resolve the conflict in favour of scale economies and reconcile the controversy the survivorship methodology in simple to apply and a useful tool in conjunction with statistical cost and production studies

an economic analysis for the design of ipp contracts for grid connected renewable energy projects abstract in this paper we undertake an integrated financial economic stakeholder analysis of a grid connected onshore wind project that is owned and operated by an independent power producer ipp in santiago island cape verde this ipp project has received considerable positive publicity and has won many awards cape verde has a very good wind resource but it suffers from high transportation costs for petroleum fuels due to its location hence it would appear to be an ideal site for an ipp investment in a wind farm this analysis is conducted from the perspectives of the electric utility the country s economy the government and the private sector investor the key question is whether the design of the power purchase agreement ppa can simultaneously yield a high enough cash flow for the project to be bankable while at the same time yielding a positive net financial and economic present value to the electric utility and the country respectively the analysis shows that a negotiated ppa results in a negative outcome for the economy of cape verde in almost all circumstances in contrast the owners of the ipp are guaranteed under all circumstances a very substantial return on their investment

welfare implications of equilibrium supply and demand curves in an open economy line integral theory is used to prove that in a closed economy the net domestic social welfare effects of a market distortion can be captured in the distorted market alone by using equilibrium supply and demand curves considerable confusion exists in the applied literature about the proper application of this proposition it is shown that the proposition does not generally hold for open economies it is shown that in general neither geometric areas behind equilibrium supply curves nor geometric areas behind equilibrium demand curves have any welfare significance

accounting for choice set endogeneity in random utility models of recreation demand abstract modeling the choice among a discrete set of recreation alternatives is driven by the possible patterns of substitution among sites researchers typically assume that the individual s choice set is the same as the set of alternatives included in the recreation survey instrument our endogenous choice set model is a generalization of the standard multinomial logit random utility model which allows for the possibility of heterogeneous choice sets that are endogenously determined in the model using two examples we show that parameter and compensating variation estimates differ greatly between the endogenous choice set model and the traditional logit model

how renewable production depresses electricity prices evidence from the german market abstract the urgency of climate change has led several countries to develop renewable energy in order to reduce co2 emissions through the means of various subsidies in the electricity sector one drawback of such policies is the negative impact on electricity prices known as the merit order effect this paper aims at assessing how intermittent renewable production depresses electricity prices in germany which has experienced a significant increase of its renewable capacity over the last two decades to do so we use a two regime markov switching model that enables to disentangle the impact of wind and solar generation depending on the price being high or low we find as expected that renewable production induces a negative marginal effect which is stronger in regimes of relatively high prices in addition we show that both wind and solar productions have a significant impact on the distribution of prices and in particular on the frequency and expected duration of each regime this has implications in terms of market design security of supply and support mechanisms for renewables

effect of sugar price policy on u s imports of processed sugar containing foods abstract the relationship between u s and world sugar prices and u s import demand for four categories of sugar containing products is examined results from econometric estimation indicate that u s intervention in the sugar market has helped to increase u s imports of some sugar containing products but that increased disposable income has played a more important role although some developing countries have benefitted from u s sugar policy by increasing their exports of sugar containing products to the united states u s sugar policy has helped imports from developed countries proportionately more than those from developing countries as a whole

texas s operating reserve demand curve s generation investment incentive abstract faced with reserve margin projections well below the adopted target of 13 75 of the system peak forecast the public utility commission of texas on 01 17 2019 ordered the state s grid operator the electric reliability council of texas to right shift the operating reserve demand curve ordc to increase generators revenue from energy sales in ercot s real time market rtm using a large sample of 15 min data for the backcast period of 01 01 2015 through 12 31 2018 we calculate the ordc shift s impact on rtm prices and investment incentives for natural gas fired generation ngfg had the ordc shift been in effect in the backcast period the resulting rtm price increases in 2018 could suffice to justify ngfg investment though not in the prior years of 2015 2016 and 2017 while the actual ordc shift occurred on 03 01 2019 had a large impact on rtm prices in the ensuing six month period of march august 2019 texas s planned renewable generation is expected to erode ngfg s operating profit thus diminishing the ordc s investment incentive over time hence texas s energy only market design will likely need further refinements to solve the missing money problem of inadequate ngfg investment incentive

wind storage interconnection and the cost of electricity generation abstract we evaluate how increasing wind generation affects wholesale electricity prices balancing payments and the cost of subsidies using the irish single electricity market sem as a test system with hourly data from 1 january 2008 to 28 august 2012 we model the spot market using a system of seemingly unrelated regressions sur where the regressions are the 24 hours of the day wind has a negative impact on the system marginal price with every mwh increase in wind generation equal to about 0 2 of the average wind generation in our sample leading to a decrease of the system marginal price of 0 018 mwh or about 0 3 of its average value we use time series models to analyse the balancing market and show that wind generation increases balancing payments as do the forecast errors of demand and wind every mwh of additional wind generation is associated with an increase in constraint payments of 3 2 or about 0 01 lack of storage increases the impact of wind on balancing payments whereas the lack of interconnection has no effect overall wind decreases costs through its effect on the electricity price more than it increases constraint payments even when storage is on outage the effect of wind remains positive after including the cost of subsidies given to wind generation

indirect competition with spatial product differentiation although two markets may appear to be separate sometimes one firm participates in both of them that firm provides a link between the two markets such a straddling firm transmits indirect competition from each market to the other since its actions reflect competitive conditions in both markets in a model of spatial product differentiation the author shows that indirect competition may make a market perform significantly better than the number of firms would indicate moreover total consumer surplus increases if two previously distinct markets are linked by a straddler finally the author considers implications of these results for antitrust analysis copyright 1989 by blackwell publishing ltd

processing industry capacity and the welfare effects of sugar policies normally analysis of policies affecting commodities such as sugar employs long run comparative statics under certainty and ignores processing industries like cane sugar refining under the implicit assumption that the capital is malleable in both the short and long run we present a dynamic model calibrated to world sugar and solved with numerical dynamic programming that includes the specific capital of the refining industry when compared to an otherwise identical static model the dynamic model suggests that some 20 of welfare losses may be misattributed to cane sugar producers instead of refiners in contrast the difference between certainty and uncertainty proves to be unimportant

assessment of sustainability indicators for renewable energy technologies the non combustion based renewable electricity generation technologies were assessed against a range of sustainability indicators and using data obtained from the literature the indicators used to assess each technology were price of generated electricity greenhouse gas emissions during full life cycle of the technology availability of renewable sources efficiency of energy conversion land requirements water consumption and social impacts the cost of electricity greenhouse gas emissions and the efficiency of electricity generation were found to have a very wide range for each technology mainly due to variations in technological options as well as geographical dependence of each renewable energy source the social impacts were assessed qualitatively based on the major individual impacts discussed in literature renewable energy technologies were then ranked against each indicator assuming that indicators have equal importance for sustainable development it was found that wind power is the most sustainable followed by hydropower photovoltaic and then geothermal wind power was identified with the lowest relative greenhouse gas emissions the least water consumption demands and with the most favourable social impacts comparing to other technologies but requires larger land and has high relative capital costs

the extent of european power markets abstract there is an ongoing debate on the degree of integration of european wholesale power markets a major task of the european union is the creation of a common market in europe and a common power market is an important part of this goal the literature analyzing the degree of integration of european energy markets is growing and provides mixed results we add to this literature by using national holidays as exogenous demand shocks to measure integration of european energy markets our main findings indicate that integration of european wholesale energy markets has increased with regard to germany and austria as well as belgium and the netherlands

a theory of competition among pressure groups for political influence this paper presents a theory of competition among pressure groups for political influence political equilibrium depends on the efficiency of each group in producing pressure the effect of additional pressure on their influence the number of persons in different groups and the deadweight cost of taxes and subsidies an increase in deadweight costs discourages pressure by subsidized groups and encourages pressure by taxpayers this analysis unifies the view that governments correct market failures with the view that they favor the politically powerful both are produced by the competition for political favors

the ecological fallacy revisited aggregate versus individual level findings on economics and elections and sociotropic voting several aggregate level studies have found a relationship between macroeconomic conditions and election outcomes operating in intuitively plausible directions more recent survey based studies however have been unable to detect any comparable relationship operating at the individual voter level this persistent discrepancy is puzzling one recently proposed explanation for it is that voters actually behave in an altruistic or sociotropic fashion responding to economic events only as they affect the general welfare rather than in terms of self interested pocketbook considerations it is argued here that the discrepancies between the macro and micro level studies are a statistical artifact arising from the fact that observable changes in individual welfare actually consist of two unobservable components a government induced and politically relevant component and an exogenous component caused by life cycle and other politically irrelevant factors it is shown that because of this individual level cross sectional estimates of the effects of welfare changes on voting are badly biased and are essentially unrelated to the true values of the behavioral parameters of interest they will generally be considerable underestimates and may even be of the wrong sign an aggregate level time series analysis on the other hand will often yield reasonably good if somewhat attenuated estimates of the underlying individual level effects of interest thus in this case individual behavior is best investigated with aggregate rather than individual level data it is also shown that the evidence for sociotropic voting is artifactual in the sense that the various findings and evidence which ostensibly show sociotropic behavior are all perfectly compatible with the null hypothesis of self interested pocketbook voting

market integration efficiency of arbitrage and imperfect competition methodology and application to u s celery this paper develops and applies a methodology to test for efficiency of interregional commodity arbitrage application of the methodology requires only time series data on prices for alternative cities regions countries or product forms yet the approach is capable of generating evidence on a number of market parameters including market integration arbitrage efficiency the magnitude of marketing margins product substitutability and competitiveness of markets estimation is based on a switching regression model with three regimes efficient arbitrage relative shortage and relative glut results from application of the model to u s celery marketing indicated significant departures from efficient arbitrage for both california and florida celery

valuation for renewable energy a comparative review abstract environmental cost benefit analysis is applied for the evaluation of renewable energy projects since some benefits and costs do not have monetary values economic valuation techniques are applied to estimate them this paper reviews the literature on the valuation evaluation of renewable energy resources and summarizes the methods used in them it discerns four main streams of valuation in renewable energy the first is economic welfare oriented and comprises stated and revealed preference methods the second is the financial option analysis with a financial background the third is emergy analysis which is mostly an ecological engineering based method with capable economic links and the fourth is again economic but not welfare based the paper discusses the main directions discerned in these studies and recognizes first that proper valuation takes place only in the first method while the other methods describe only evaluation procedures and second that there is a research gap that has yet to be filled in as compared to other areas of environmental resource and energy economics

impacts of trade liberalizations under the uruguay round on the world sugar market the impacts of the uruguay round policy provisions on the world sugar market show that these policies will stabilize the world sugar price at slightly higher levels than in the baseline global sugar consumption will increase as a result of the income growth caused by the uruguay round economic resources will be allocated more efficiently among the sugar industries of the various countries however the impacts on the sugar industries in countries with strong producer supports will be rather small because the negotiation process of the uruguay round has accommodated the changes in sugar policies already implemented by individual countries in the past few years low cost sugar producing countries will benefit from the higher world sugar price and consumers in countries with protected markets will benefit from lower domestic prices

examining the financial performance of micro generation wind projects and the subsidy effect of feed in tariffs for urban locations in the united kingdom abstract this paper seeks to evaluate the effect of the upcoming 2010 uk feed in tariff uk fit on decentralised small wind energy installations at the household and building level in urban locations it is projected that the uk fit will stimulate an unprecedented surge in building mounted turbine installation the tariff amount must stimulate incentive but mitigate the likelihood of distortions in the competitive electricity market to analyse these issues measured energy output from sites in the warwick wind trials project wwtp is converted into revenue in a net present value npv framework for assessing commercial purchases of small wind systems variances in project variables are examined through npv simulations using monte carlo analysis to capture permutations of small wind project performance in the uk with and without the uk fit our research concludes that the proposed tariff amount of 30 5 p kwh will not significantly boost the economic attractiveness of mildly selective wwtp based sites in the uk furthermore the fixed tariff rate kwh generated could cause inefficiencies applied across uneven wind resource distribution the results of this study suggest further examination of policy related to micro generation in particular decentralised small wind projects

open access and the evolution of the u s spot market for natural gas federal regulations promoting open access transportation dramatically altered the organizational structure of the u s market for natural gas in the 1980s generally unbundling the merchant and transport functions of interstate pipelines an empirical analysis of wellhead spot prices is undertaken to examine the effect of open access on the geographic scope of the spot market using monthly spot price data from 1984 91 three statistical tests are applied and compared price correlations granger causality and cointegration we find that open access integrated the regional wellhead markets into a national competitive market for natural gas the effects of unbundling on contracts for natural gas are then investigated incentives for long term contracts between pipelines and producers are shown to be effectively removed by the introduction of competitive buying and selling of gas at the wellhead through open access

thinking creatively about markets abstract the paper takes a broad view of how economists identify market boundaries three types of definition are distinguished trading markets anti trust markets and strategic markets the first is based on the familiar law of one price while the second follows us dij guidelines and is designed to identify positions of market power neither of these definitions suits the needs of one of the more recent and fastest growing users of economics namely those responsible for corporate strategy decisions inside firms the paper reviews why market definitions are a fundamental part of strategy decisions and identifies several ways that such users might define market boundaries

economic outcomes and political support for british governments among occupational classes a dynamic analysis the first section of the article establishes the political salience of macroeconomic issues to the british electorate reviews the distributional consequences of macroeconomic outcomes and suggests that unemployment outcomes in particular have strong class related distributional effects the second part presents a dynamic model of how rational voters evaluate the governing party based on the idea that voters evaluate the cumulative performance of the governing party relative to the prior performance of the current opposition since the present relevance of prior outcomes decays over time voters weight current performance more heavily than past performance informing contemporaneous political judgments the empirical analyses in the third section include measures of nominal economic performance inflation and exchange rate movements and real economic performance unemployment and real income fluctuations the regression results indicate that the responses of political support among the occupational classes to macroeconomic changes are sizeable and that the cross class variations are consistent with the distributional consequences reviewed at the beginning of the article the concluding section develops the electoral implications of the empirical results and presents a novel interpretation of trends in class related political support for the parties the evidence shows that the argument that there has been a persistent decline of class based political alignments in britain is erroneous

economic voting and the symbolic politics argument a reinterpretation and synthesis economic voting is generally regarded as a straightforward political demand for the amelioration of economic grievances this assumption about motives underlies the implicit theories of politicians and the imputations of interests to voters in aggregate time series models several recent articles have argued that voting is not self interested but a manifestation of symbolic preferences at the level of the collectivity this article places the dispute between personal and collective decision referents into the broader perspective of a multi stage model of information processing and decision making personal and collective decision referents are shown to define the poles of a continuum and several hypotheses are derived to predict the relative weights assigned to each in the voter s calculus the model is used in analyses of both the public s evaluations of incumbent economic management and economic voting in different electoral arenas by varying issue publics designed to maximize comparability with aggregate studies this research includes both objective and subjective measures of economic conditions and indexes changes in personal conditions over time from panel data

price and quantity controlled agricultural markets and disequilibrium econometrics a survey abstract this survey reviews the literature on estimating single markets in disequilibrium in the presence of regulated price and or quantity controls e g minimum price regimes and or marketing quotas most of the literature is found to describe pure econometric technique with only a few applications having emerged to date various reasons for the broad non acceptance of this literature are offered including a perceived lack of realism proposals to close this econometric theory application gap are put forward including the use of effective demand concepts in specifying demand and supply functions synthesizing some closely related literature on agricultural price quantity controls with disequilibrium econometrics i e endogenous government policy and the effects controls have on yield uncertainty and price risk and outlining more applicable econometric technique extensions