application of the counterfactual method to assess of the local economic impact of a nuclear power station abstract several studies have examined the local economic effects of nuclear power stations however their heterogeneity within countries and between countries indicate that one must be very cautious in drawing general conclusions about the positive and negative local economic effects of nuclear power stations over time using information about a specific nuclear facility in spain and its zone of influence we investigate the local economic impact of a nuclear facility by applying an infrequently used methodology called the counterfactual method the purpose of this application of the counterfactual method is to establish what would have happened if the nuclear power plant had not been built where it was this method permits observation of the impact of the nuclear power plant on the evolution of a set of variables whose influence is extremely important for the local area such as the population unemployment level per capita income and municipal governments revenues generalization of this method could offer the possibility of providing comparative results however the method must be complemented with other short term approaches to provide a more specific analysis of the economic effects on the local actors involved and to offer incentives to policymakers to design and develop policies aimed at boosting economic activity in the area

sustainability assessment of energy systems integrating environmental economic and social aspects abstract sustainable development of energy systems requires consideration of all three sustainability dimensions environmental economic and social current work presents a new decision support framework for facilitating this taking a life cycle approach the framework integrates the three sustainability dimensions to enable assessments at both technology and systems levels the framework comprises scenario analysis life cycle assessment life cycle costing social sustainability assessment and multi criteria decision analysis which are used to assess and identify the most sustainable energy options the application of the framework is illustrated on the example of future electricity supply in mexico eleven scenarios up to 2050 have been developed considering different technologies electricity mixes and climate change targets the results show that based on the 17 sustainability criteria used in this work the business as usual scenario mostly based on fossil fuels is unsustainable regardless of the preferences for different sustainability criteria this is mainly due to the high costs and environmental impacts associated with fossil fuels overall the most sustainable scenarios are those with higher penetration of renewables wind solar hydro geothermal and biomass and nuclear power these electricity pathways would enable meeting the national greenhouse gas emission targets by 2050 in a more sustainable way than envisaged by the current policy however some trade offs among the sustainability criteria are needed particularly with respect to the social impacts these trade offs can be explored easily within the decision support framework to reveal how different stakeholder preferences affect the outcomes of sustainability assessment thus contributing to more informed decision and policy making

contracts as a barrier to entry it is shown that an incumbent seller who faces a threat of entry into his or her market will sign long term contracts that prevent the entry of some lower cost producers even though they do not preclude entry completely moreover when a seller possesses superior information about the likelihood of entry it is shown that the length of the contract may act as a signal of the true probability of entry

exclusive contracts and protection of investments we consider the effect of a renegotiable exclusive contract restricting a buyer to purchase from only one seller on the levels of noncontractible investments undertaken in their relationship contrary to some informal claims in the literature we find that exclusivity has no effect when all investments are fully specific to the relationship i e are purely internal exclusivity does matter when investments affect the value of the buyer s trade with other sellers i e have external effects we examine the effects of exclusivity on investments and aggregate welfare and the private incentives of the buyer seller coalition to use it

supply side and demand side cost sharing in deregulated social health insurance which is more effective abstract microeconomic theory predicts that if patients are fully insured and providers are paid fee for service utilization of medical services exceeds the efficient level moral hazard effect in switzerland both demand side and supply side cost sharing have been introduced to mitigate this problem analyzing a panel dataset of about 160 000 adults we find both types of cost sharing to be effective in curtailing the use of medical services however when moral hazard mitigation is traded off against risk selection the minimum deductible supply side cost sharing option ranks first followed by the medium deductible demand side alternative making the supply side option somewhat more effective

contrast explanation in economics its context meaning and potential in this article we place tony lawson s account of contrast explanation in context lawson s development of it is given meaning both by the roots of the approach in his work on social ontology and the state of economics that provides the grounds for the critique contained in that social ontology this is important because such an approach to explanation is not new most notably van fraassen and garfinkel have developed it in particular ways and for particular purposes within the philosophy of science and social theory setting out the different ways in which the contrastive approach has been developed is useful for identifying what is different about lawson s approach its potential and limits lawson s proposal is more modest and focusses on causal investigation in a manner that flows from his approach to social ontology contrast explanation provides a substitute for controlled experiments and facilitates identifying social mechanisms it also enables exploration of the manifold presuppositions of our explanatory questions we argue that this is a useful and important contribution to overcoming some of the many problems economics faces

does public insurance crowd out private insurance the cost of expanding public sector health programs depends critically on the extent to which public eligibility will cover just the uninsured or will crowd out existing private insurance coverage we estimate the extent of crowd out arising from the expansions of medicaid to pregnant women and children over the 1987 1992 period we estimate that approximately 50 percent of the increase in medicaid coverage was associated with a reduction in private insurance coverage this occurred largely because employees took up employer based insurance less frequently there is also some evidence that employers contributed less for insurance and that workers dropped coverage of dependents

persistent demi regs and robust tendencies critical realism and the singer prebisch thesis debate about whether the terms of trade for primary products relative to manufactures have a tendency to deteriorate has been ongoing for half a century the phenomenon itself provides an example of a persistent contrastive demi regularity this is viewed as the result of a robust tendency understood as an enduring and pervasive characteristic effect generated by a powerful and stable underlying causal mechanism on this basis the key problem for primary products lies in the biological limits on consumption to which may be added capitalism specific tendencies affecting processes of production and distribution the paper concludes by arguing that the relevant holistic generic tendency under capitalism involves a long term contraction in the primary product share of world trade copyright 2002 oxford university press

the principal agent relationship with an informed principal ii common values in many circumstances a principal may have relevant private information when she proposes a contract to an agent we analyze such a principal agent relationship as a noncooperative game the principal proposes a contract which is accepted or rejected by the agent who for most of our analysis has no private information the contract is executed if accepted otherwise the reservation allocation takes effect this allocation may be determined by a pre existing contract which the principal by her proposal is attempting to renegotiate or it may simply be the no trade point in this paper we assume that the principal s information directly affects the agent s payoff before solving the game we discuss pareto efficiency with asymmetric information we define an incentive compatible allocation to be weakly interim efficient wie if there exists no alternative incentive compatible allocation that both parties prefer for all possible beliefs that the agent might have about the principal s private information type we show that any wie allocation is interim efficient ie for some beliefs the rothschild stiglitz wilson rsw allocation relative to the reservation allocation l is the allocation that maximizes the payoff of each type of principal within the class of incentive compatible allocations that guarantee the agent at least the utility he gets from a irrespective of his beliefs about the principal s type the equilibrium set of the contract proposal game consists of the allocations that weakly pareto dominate the rsw allocation thus there is a unique equilibrium outcome if and only if the latter is ie and the equilibrium outcome is the rsw allocation itself after characterizing the equilibrium allocations we study those that are renegotiation proof when either the principal or the agent leads the renegotiation we then compare our contract proposal game which is a signaling model with its screening counterpart we conclude by extending our results to the case in which the agent as well as the principal has private information under the assumption of quasi linear preferences

the role of exclusive territories in producers competition reprinted in cartels stephen salant ed the international library of critical writings in economics edward elgar reference collections

on the causal dynamics between emissions nuclear energy renewable energy and economic growth this paper examines the causal relationship between co2 emissions nuclear energy consumption renewable energy consumption and economic growth for a group of 19 developed and developing countries for the period 1984 2007 using a panel error correction model the long run estimates indicate that there is a statistically significant negative association between nuclear energy consumption and emissions but a statistically significant positive relationship between emissions and renewable energy consumption the results from the panel granger causality tests suggest that in the short run nuclear energy consumption plays an important role in reducing co2 emissions whereas renewable energy consumption does not contribute to reductions in emissions this may be due to the lack of adequate storage technology to overcome intermittent supply problems as a result electricity producers have to rely on emission generating energy sources to meet peak load demand

leader driven primacy using attribute order to affect consumer choice leader driven primacy uses initial product information to install a targeted brand as the early leader in a choice between two brands biased evaluation of subsequent attributes builds support for the targeted brand causing the choice itself to be biased study 1 finds evidence of this effect in choices between two equally attractive brands study 2 extends the finding to a situation where one brand is inferior and to conditions where participants do not explicitly identify their leader study 3 shows how leader driven primacy can be reduced by encouraging brand based processing

the principal agent relationship with an informed principal the case of private values we analyze the principal agent relationship when the principal has private information as a three stage noncooperative game contract proposal acceptance refusal and contract execution we assume that the information does not directly affect the agent s payoff private values equilibrium exists and is generically locally unique moreover it is pareto optimal for the different types of principal the principal generically does strictly better than when the agent knows her information equilibrium allocations are the walrasian equilibria of an economy where the traders are different types of principal and exchange the slack on the agent s individual rationality and incentive compatibility constraints

renegotiation design with unverifiable information this paper considers a buyer seller relationship with observable but unverifiable investments and or random utility parameters in such situations it is known that contract renegotiation may prevent the implementation of first best outcomes in this paper we show however that efficient investments and optimal risk sharing can typically be achieved provided the initial contract is able to monitor the ex post renegotiation process specifically we focus on the following two features of renegotiation design first default options in case renegotiation breaks down second the allocation of all bargaining power to either contracting party moreover we show that these two features can be obtained in standard rubinstein bargaining games through contractual provisions such as specific performance clauses and penalties for delay or equivalently financial hostages refundable without interest

transfers in cash and in kind theory meets the data we review theoretical explanations for in kind transfers in light of the limited empirical evidence after reviewing the traditional paternalistic arguments we consider explanations based on imperfect information and self targeting we then discuss the large literature on in kind programs as a way of improving the efficiency of the tax system and a range of other possible explanations including the samaritan s dilemma pecuniary effects credit constraints asymmetric information amongst agents and political economy considerations our reading of the evidence suggests that paternalism and interdependent preferences are leading overall explanations for the existence of in kind transfer programs but that some of the other arguments may apply to specific cases political economy considerations must also be part of the story

nuclear power and the characteristics of ordinariness the case of uk energy policy abstract this paper first considers why nuclear power has become unattractive to private investors in liberalised electricity markets it then outlines some of the thinking behind current uk energy policy which emphasises the centrality of developing a low carbon economy it sets out the arguments mostly based on the market failures of environmental externalities and inadequate private investment in rd ii there is a case for limited public rd iii nuclear power will only become a serious choice for new private investment if it can become an ordinary technology and the conditions for ordinariness are set out

inherent rule variability in consumer choice changing rules for change s sake the present research demonstrates that consumers tend to vary their use of decision rules independent of option and set characteristics in five experiments increased choice of a particular option e g lower price brand name or compromise option was associated with relatively decreased choice of that same generic option on occasions that followed results indicate that this inherent rule variability is not an effect of background contrast but instead relates to consumers favorable valuation of decision change itself this research implies that the idea of contingent decision making applies not only to decision outcomes but also to decision processes

exclusionary vertical contracts and product market competition this article considers whether a monopolist is able to deter more efficient entrants through contracting with buyers in the antitrust literature the chicago school s stand is that such contracts cannot be anticompetitive hence vertical contracts should be accorded per se legal status in a four stage game with the following features 1 the incumbent enjoys a first mover advantage 2 the entrant must incur some sunk cost to enter the market and 3 entry is uncertain the author shows that vertical contracts can be anticompetitive if there exists product market competition thus the author advocates caution in treating all contracts as per se legal a three factor repeated measures experiment tested the effect of leadership style charismatic structuring and considerate on performance improvement on a manufacturing task over four trials findings from a repeated measures multivariate analysis of variance indicated that individual exposed to considerate leadership had superior initial performance but that this difference faded over time further analysis indicated that self efficacy fully mediated the relationship between leadership style and performance copyright 1999 by university of chicago press

an equilibrium selection theory of monopolization we develop a duopoly model in which firms compete for the market e g investing in process innovation or product development as well as in the market e g setting quantities or prices competition for the market generates multiple equilibria that differ in the firms investment levels relative size and profitability we show that monopolization that affects competition in the market can act as an equilibrium selection device in competition for the market in particular it eliminates equilibria that are undesirable for the monopolizing firm while not generating new equilibria this result complicates the task of determining whether a firm s dominance in a given market is the result of fair competition or unlawful monopolization we discuss a number of implications for antitrust policy and litigation and illustrate these by means of two well known antitrust cases

mechanism design by an informed principal private values with transferable utility we provide a solution to the informed principal problem in the independent private values setting with monetary transfers the principal s private information creates signaling considerations that may distort the implemented allocation we show that there is no distortion all principal types implement an allocation that is optimal for the principal ex ante before he she learns his her type as an application we consider settings with linear utility for bilateral exchange in which the principal is one of the traders the solution is a combination of a participation fee a buy out option for the principal and a resale stage with posted prices

on energy policy models many energy models cannot be relied upon in forecasting or policy analysis the quality of the data is often poor and the theoretical underpinnings tend to be inadequate these points are illustrated by example

security justice and the energy crossroads assessing the implications of the nuclear phase out in germany abstract the nuclear melt down in fukushima resulted in diverging energy policy decisions across the world where germany decided to opt out of nuclear electricity production yet the government s decision making framework for energy policy decisions does not accurately reflect important drivers for the strategy change this paper presents the energy crossroads framework as a more comprehensive tool to analyse the drivers and impacts of the nuclear phase out 20 expert interviews were performed across business participants as well as policy makers in the national and international energy context results show that germany has adopted an environmental justice rather than energy security stance in their nuclear phase out policy with significant long term consequences

exclusive territories and manufacturers collusion this paper highlights the rationale for exclusive territories in a model of repeated interaction between competing supply chains we show that with observable contracts exclusive territories have two countervailing effects on manufacturers incentives to sustain tacit collusion first granting local monopolies to retailers softens competition in a one shot game hence punishment profits are larger thereby rendering deviation more profitable second exclusive territories stifle deviation profits because retailers of competing brands adjust their prices to the wholesale contract offered by a deviant manufacturer whereas intrabrand competition prevents such instantaneous reaction we show that the latter effect tends to dominate thereby making exclusive territories a more suitable organizational mode to cooperate these insights are robust to endogenous communication between manufacturers we also consider retailers service investments here a novel effect emerges that softens the procollusive value of exclusive territories retailers of a deviant manufacturer increase investments which renders deviation more profitable this paper was accepted by preyas desai marketing

the effect of economic growth oil prices and the benefits of reactor standardization duration of nuclear power plant construction revisited the profitability of nuclear power plant investment is largely determined by the construction duration which directly impacts discounted cash flows debt and interest payments as well as variable costs such as labor this paper analyzes the key drivers of construction duration using survival models we focus especially on the strategic expectation formation of private and public utilities engaging in such highly risky megaprojects using a balanced dataset of explanatory variables and the iaea pris dataset of reactor construction starts between 1950 and 2013 we find that the expectation of rising oil prices and higher economic growth along with the higher per capita gdp of a country tend to reduce the time needed to grid connection we also identify the reactor models with the fastest construction duration

what s in a name tony lawson on neoclassical economics and heterodox economics in this article i respond to tony lawson s what is this school called neoclassical economics lawson s paper is provocative because it reformulates neoclassical economics based on veblen s original intent as a mismatch created by recognising the value of an evolutionary approach to the economy whilst remaining over reliant on elements of a taxonomic approach for lawson many heterodox economists may be neoclassical under this description i argue that there is clearly a case to be heard but that the reformulation of the neoclassical raises a number of issues there are issues concerning the specific critique of the current usage of the term neoclassical regarding genealogy and meaning there are specific issues regarding the further development of the new old veblen definition of the neoclassical how clear is the definition in a practical context as a way to identify a neoclassical group based on the commitments of the critique and the definition what does it mean to be more realistic and what is the strategic value of such a provocation for heterodoxy i argue that the combination of these are reasons for more consideration of issues of social ontology not less insofar as the terms of the argument are incomplete and this invites both lawson and those he is criticising to progress the argument particularly on method

nuclear renaissance public perception and design criteria an exploratory review abstract there is currently an international drive to build new nuclear power plants bringing about what is being termed a nuclear renaissance however the public perception of nuclear energy has historically been and continues to be a key issue particularly in light of the fukushima nuclear incident this paper discusses the disparity between perceived and calculated risks based on the last four decades of research into risk perception the leading psychological and sociological theories psychometric paradigm and cultural theory respectively are critically reviewed the authors then argue that a new nuclear build policy that promotes a broader approach to design incorporating a wider range of stakeholder inputs including that of the lay public may provide a means for reducing the perceived risk of a nuclear plant further research towards such a new approach to design is proposed based on integrating expert and lay stakeholder inputs and taking into account broader socio cultural factors whilst maintaining the necessary emphasis on safety technological development economics and environmental sustainability

signaling and the design of delegated management contracts for public utilities this article analyzes the shape of contracts between local governments and the contractors they hire to run public facilities on their behalf governments are privately informed about the quality of the facility while risk neutral contractors undertake a non verifiable operating eort the design of the contract signals the quality of the facility in such a way that the better this quality the greater the share of operating risk kept by the government this feature reduces the agent s marginal incentives creating a trade o between signaling and moral hazard we provide extensions of our framework in several directions allowing for risk aversion on the agent s side double moral hazard and political delegation the model is supported by some stylized facts from the water industry

cooperative investments and the value of contracting recent articles have shown that contracts can support the efficient outcome for bilateral trade even in the face of specific investments and incomplete contracting these studies typically considered selfish investments that benefit the investor e g the seller s investment reduces her production costs the authors find very different results for cooperative investments that directly benefit the investor s partner e g the seller s investment improves the buyer s value of the good most importantly if committing not to renegotiate the contract is impossible then contracting has no value i e the parties cannot do better than to abandon contracting altogether in favor of ex post negotiation

saving risk sharing and preferences for risk saving decisions are made jointly by household members who generally earn risky incomes consequently to interpret saving patterns it is crucial to analyze the relationship between intrahousehold risk sharing and intertemporal choices to that end in this paper the household is characterized as a group of agents with possibly heterogeneous preferences making efficient decisions two results are obtained first it is shown that risk sharing can increase the amount saved by the household second i find that an increase in risk aversion and prudence of an individual member can reduce household risk aversion and prudence these results are consistent with the empirical evidence collected using the hrs

constructive consumer choice processes consumer decision making has been a focal interest in consumer research and consideration of current marketplace trends e g technological change an information explosion indicates that this topic will continue to be critically important we argue that consumer choice is inherently constructive due to limited processing capacity consumers often do not have well defined existing preferences but construct them using a variety of strategies contingent on task demands after describing constructive choice consumer decision tasks and decision strategies we provide an integrative framework for understanding constructive choice review evidence for constructive consumer choice in light of that framework and identify knowledge gaps that suggest opportunities for additional research

how long does it take to build a nuclear power plant a non parametric event history approach with p splines abstract governments deciding to use nuclear energy as part of their country s energy mix are faced with long term planning efforts and huge investments as nuclear power plants constitute one of the socially and politically most contested technologies the question arises which time horizons companies as well as politicians have to consider for the accomplishment and grid connection of individual and whole fleets of reactors unfortunately there are no large n studies investigating the time for completion of such large scale projects for the first time we statistically explain the duration of the construction of all initiated nuclear plant projects so far based on the international atomic energy s comprehensive power reactor information system pris we assess the impact of demographic economic and political preconditions of a country at the same time accounting for different types of reactor technologies to account for non linear relationships we apply non parametric survival models with p splines a main result of our analysis is that time of connection to grid increases over the years indicating increased societal sensibilities respect for higher security standards and increased project complexities the harrisburg and the chernobyl disaster did not induce a separate additional delaying effect

an undominated mechanism for a class of informed principal problems with common values in a class of informed principal problems with common values we define iteratively a particular allocation which we call the assured allocation it is comparatively easy to calculate and straightforward to interpret it always exists is unique and continuous in the priors it is undominated i e efficient among the different types of the principal subject to the agent s interim participation constraint it is a perfect bayesian equilibrium of the three stage game in myerson 16 and maskin and tirole 14 it dominates the rsw allocation as defined in maskin and tirole 14 and coincides with it when the latter is undominated it is the unique neutral optimum as defined in myerson 16 when there are only two types when the assured allocation is separating then it is a neutral optimum with three or more types it is an equilibrium of a game of competition in a market with adverse selection

exclusive quality exclusive quality in the case of vertically differentiated products bertrand competition at the retail level does not prevent an incumbent upstream firm from using exclusivity contracts to deter the entry of a high quality rival indeed because of differentiation the incumbent s inferior product is not eliminated upon entry due to the resulting competitive pressure a retailer who considers rejecting the exclusivity contract expects to earn much less than the incumbent s monopoly rents thus in equilibrium the incumbent can always offer high enough an upfront payment to induce all retailers to sign the contract and achieve exclusion this is true under linear pricing for intermediate levels of entry costs and with two part tariffs even in the absence of entry costs copyright 2010 the author the journal of industrial economics 2010 blackwell publishing ltd and the editorial board of the journal of industrial economics

a signaling based theory of contractual commitment to relationships abstract in this paper i present signaling as an explanation for how and why parties commit to relationships when they initially contract about the terms of those relationships two forms of contractual commitment to a relationship are considered a promise to trade in the future contracted quantity and a promise not to trade with anyone else contracted exclusivity a party is said to commit more to a relationship if it commits initially to trade a higher quantity and or to a higher level of exclusivity i characterize equilibrium contracts and therefore commitment both the ability to signal information through an exclusivity commitment and whether the informed party commits more to the relationship when the relationship is more likely to succeed depend on the source of the asymmetry of information

nuclear power climate change and energy security exploring british public attitudes public attitudes towards nuclear power in the uk have historically been deeply divided but as concern about climate change and energy security has exerted an increasing influence on british energy policy nuclear power has been reframed as a low carbon technology previous research has suggested that a significant proportion of people may reluctantly accept nuclear power as a means of addressing the greater threat of climate change drawing on the results of a national british survey n 1822 the current study found that attitudes towards nuclear remain divided with only a minority expressing unconditional acceptance in general people who expressed greater concern about climate change and energy security and possessed higher environmental values were less likely to favour nuclear power however when nuclear power was given an explicit reluctant acceptance framing allowing people to express their dislike for nuclear power alongside their conditional support concerns about climate change and energy security became positive predictors of support for nuclear power these findings suggest that concern about climate change and energy security will only increase acceptance of nuclear power under limited circumstances specifically once other preferred options have been exhausted

attributing responsibility for energy justice a case study of the hinkley point nuclear complex since 2006 as part of the transition to low carbon technologies uk energy policy has moved towards incentivising new nuclear power production as a result the uk has developed a now delayed strategy to deliver around 16gw of new nuclear power by 2030 this policy context provides an opportunity to reflect not only on the material infrastructure needed to meet transition targets but also on who is responsible for the energy justice implications of these decisions using data collected from 26 semi structured interviews with ngo and policy representatives this paper presents a case study of energy justice concerns surrounding the hinkley point nuclear complex in somerset focusing particularly on the highly controversial hinkley point c developments the results emphasise the importance of considering not only instances of energy justice or injustice but of attributing responsibility for them a concept that has been largely overlooked in the energy justice literature ngos government and business allocate responsibility differently in nuclear energy decision making we find that perceptions of responsibility are highly dependent upon the level of transparency in decision making this article is part of a virtual special issue entitled exploring the energy justice nexus

applied economics contrast explanation and asymmetric information the purpose of this paper is to illustrate the workings of an explanatory method for applied economics it is a method that is rarely explicitly examined or defended in the discipline but which i believe has a lot of promise for the sorts of contexts that economists must address my strategy is to show that and how the method in question effectively underpins at least one study already widely regarded as explanatorily successful copyright the author 2008 published by oxford university press on behalf of the cambridge political economy society all rights reserved oxford university press

on the income nuclear energy co2 emissions nexus revisited this paper seeks to contribute to the debate over the income nuclear enery co2 emissions nexus by taking specific account of the possible endogeneity of income which has been largely ignored by early studies a multivariate cointegrated vector autoregression cvar is applied to top six nuclear generating countries we find that nuclear energy tends to reduce co2 emission for all countries it is also found that income has a beneficial effect on the environment only in some countries finally we find that co2 emissions and income are indeed determined simultaneously while nuclear energy acts exogenously indicating that nuclear energy is the driving variable which significantly influences the long run movements of co2 emissions and income but is not affected by co2 emissions and income in the model

holdups standard breach remedies and optimal investment in bilateral trading problems the parties may be hesitant to make relationship specific investments without adequate contractual protection we postulate that the parties can sign noncontingent contracts prior to investing and can freely renegotiate them after information about the desirability of trade is revealed we find that such contracts can induce one party to invest efficiently when courts impose either a breach remedy of specific performance or expectation damages moreover specific performance can induce both parties to invest efficiently if a separability condition holds expectation damages on the other hand is poorly suited to solve bilateral investment problems forthcoming the american economic review please contact the program in law and economics at boalt hall school of law uc berkeley berkeley ca 94720 for a copy of this paper

adding asymmetrically dominated alternatives violations of regularity and the similarity hypothesis an asymmetrically dominated alternative is dominated by one item in the set but not by another adding such an alternative to a choice set can increase the probability of choosing the item that dominates it this result points to the inadequacy of many current choice models and suggests product line strategies that might not otherwise be intuitively plausible

naked exclusion an experimental study of contracts with externalities this paper reports the results of an experiment designed to assess the ability of an incumbent seller to profitably foreclose a market with exclusive contracts we use the strategic environment described by rasmusen ramseyer and wiley 1991 and segal and whinston 2000 where entry is unprofitable when sufficiently many downstream buyers sign exclusive contracts with the incumbent when discrimination is impossible the game resembles a stag hunt coordination game in which the buyers payoffs are endogenously chosen by the incumbent seller exclusion occurs when the buyers fail to coordinate on their preferred equilibrium two way non binding pre play communication among the buyers lowers the power of exclusive contracts and induces more generous contract terms from the seller when discrimination and communication are possible the exclusion rate rises divide and conquer strategies are observed more frequently when buyers can communicate with each other exclusion rates are significantly higher when the buyers payoffs are endogenously chosen rather than exogenously given finally secret offers are shown to decrease the incumbent s power to profitably exclude

contractual signaling relationship specific investment and exclusive agreements i analyze a model of hold up with asymmetric information at the contracting stage the asymmetry of information concerns the value of trade with external parties i show that contractual signaling and efficiency of investment can conflict if only quantity is contractible this conflict generates inefficient equilibria in terms of investment contracting on exclusivity in addition to quantity resolves the conflict and consequently eliminates the inefficiency of investment

understanding the nuclear controversy an application of cultural theory abstract the need for a secure and sustainable energy future has become firmly entrenched on the global political agenda governments worldwide are seeking solutions that will ensure security of their energy supplies while reducing carbon emissions in the fight against climate change advocates of nuclear power have reframed the technology as the most reliable cost effective and immediate solution to both of these policy problems and predicted the emergence of a nuclear renaissance however there is little evidence to date that suggests a nuclear renaissance has actually taken place public opinion polling demonstrates that many remain unconvinced of the need for nuclear power this paper uses cultural theory as a heuristic to understand why the arguments for a nuclear renaissance have been largely unsuccessful it argues that the failure of nuclear advocates to engage with a wider cross section of world views has prevented the controversy surrounding nuclear power from being resolved and the nuclear renaissance from becoming a reality in doing so this paper builds upon a growing recognition of the contribution that social science research can make to understanding public acceptance of energy policy choices

what explains local policy elites preferences toward renewable energy energy efficiency policy abstract in this paper we attempt to identify individual level determinants that shape renewable energy and energy efficiency re ee policy adoption decisions utilizing the grid group cultural theory ct mixed with rational choice perspectives through an analysis of data collected from a statewide survey of 420 local policy elites in more than 50 arkansas cities in 2014 we found that cultural values particularly those of egalitarianism and individualism significantly influence re ee policy preferences with egalitarians demonstrating higher support for re ee policies and individualists demonstrating lower levels of support we further found that feasibility considerations particularly economic and land use feasibility perceptions significantly influence re ee policy preferences with higher levels of perceived feasibility being associated with higher levels of support for re ee policies however feasibility perceptions were not strong enough to overcome the effects of cultural values particularly for egalitarians and individualists in sum such feasibility considerations are present in policy elites related policy preference formation but are constrained by their cultural value predispositions we conclude by discussing various ramifications of our research findings

nuclear energy policy in the united states 1990 2010 a federal or state responsibility this paper examines from a policy perspective nuclear energy policy in the united states us from 1990 to 2010 and questions whether it is or has become a federal or state responsibility the present study as befits policy research engages with many disciplines for example in particular law and politics and hence the contributions move beyond that of nuclear energy policy literature and in particular to that on nuclear new build and other assessments of large infrastructure projects several examples at the federal level are identified that demonstrate that the nuclear industry has evolved to a stage where it requires a focus on the power of actions at a more localised state level in order to re ignite the industry the research concludes that there remains a misunderstanding of the issue of project management for complex construction projects and it is highly arguable whether many of its issues have been resolved further the research asserts that the economics of nuclear energy are not the most influential reason for no nuclear new build in the us

the long run determinants of north south terms of trade and some recent empirical evidence abstract this paper reviews some recent evidence of the long run decline in the terms of trade of primary commodities versus manufactures in the context of north south trade this evidence is evaluated in the light of competing explanations of the sources of the observed long run trends in the context of a model of north south trade which includes a general resource labor and capital in the north and specific factors in a dual economy model of the south changes in factor supply sectoral and factoral bias in technical change biased demand conditions changes in the pattern of protection and institutional elements all play a role in determining the evolution of commodity and factor prices the lewis hypothesis of sectoral bias in the pattern of technical change towards temperate agriculture in the north and against tropical agriculture in the south is then reexamined in the light of the recent empirical evidence on terms of trade movements and some sketchy evidence presented on the patterns of bias in technical change in the north and the south the evidence is not consistent with an absolute technical change bias towards temperate agriculture in the north rather the rate of technical change in temperate agriculture is now comparable to that experienced in manufactures so that engel curve effects now assert the major downward pressure on the long run terms of trade between temperate agriculture commodities and manufactures overriding the effects of diminishing returns to natural resources as northern population expands the empirical evidence onbiased technical change in the south is much more sketchy and the evidence on various components of north south terms of trade is more varied

exclusive dealing as a barrier to entry evidence from automobiles exclusive dealing contracts between manufacturers and retailers force new entrants to set up their own costly dealer networks to enter the market we ask whether such contracts may act as an entry barrier and provide an empirical analysis of the european car market we first estimate a demand model with product and spatial differentiation and quantify consumers valuations for dealer proximity and dealer exclusivity we then perform policy counterfactuals to assess the profit incentives and possible entry deterring effects of exclusive dealing we find that there are no unilateral incentives to maintain exclusive dealing but there is a collective incentive for the industry as a whole furthermore a ban on exclusive dealing would raise the smaller entrants market share but more importantly consumers would gain not so much because of increased price competition but rather because of the increased spatial availability which compensates for the demand inefficiency from a loss of dealer exclusivity

the terms of trade experience of britain since the nineteenth century the terms of trade of britain exhibited a declining trend in the first half of the nineteenth century but after two decades of transitional confusion they started to move upwards the explanation lies in the fact that the reversal of the trend corresponded to a change in the structure of british export trade from the dominance of traditional textile products towards other manufactures unlike the traditional textile products these other manufactures had little indigenous counterpart in the agrarian countries with which britain had expanding trade relations so while cost reduction through technical progress led to a rapid fall in the prices of cotton textiles under stiff competition at home and abroad producers in the newer sectors did not have to respond much to this type of cost reducing technical progress that spread to these sectors in the latter period thus as prebisch and singer argued the classical scheme of distribution of the gains from technical progress through trade that was supposed to

the imf the world bank and commodity prices a case of shifting sands abstract this paper examines some recent developments in the thinking of both the international monetary fund and the world bank regarding the macroeconomic determinants of commodity prices and the relative importance of secular and cyclical factors in explaining their recent behavior

resolving society s energy trilemma through the energy justice metric carbon dioxide emissions continue to increase to the detriment of society in many forms one of the difficulties faced is the imbalance between the competing aims of economics politics and the environment which form the trilemma of energy policy this article advances that this energy trilemma can be resolved through energy justice energy justice develops the debate on energy policy to one that highlights cosmopolitanism progresses thinking beyond economics and incorporates a new futuristic perspective to capture these dynamics of energy justice this research developed an energy justice metric ejm that involves the calculation of several metrics 1 a country national ejm 2 an ejm for different energy infrastructure and 3 an ejm which is incorporated into economic models that derive costs for energy infrastructure projects an ejm is modeled for china the european union and the united states and for different energy infrastructure in the united kingdom the ejm is plotted on a ternary phase diagram which is used in the sciences for analyzing the relationship trilemma of three forms of matter the development of an ejm can provide a tool for decision making on energy policy and one that solves the energy trilemma with a just and equitable approach

nuclear power the ambiguous lessons of history abstract it is now clear that at least in the short term nuclear power will not achieve the contribution to energy supplies predicted for it this paper examines the factors that led to the massive concentration of resources that were devoted to it it suggests that economic predictions were not the driving force with political considerations being dominant it examines the extent to which the vulnerability of the west exposed in the first oil crisis was contributed to by the over emphasis on nuclear power programmes which did not achieve their objectives it concludes that current models of technology development could not cope with the special features of nuclear power and that new models will have to be developed if nuclear fission is to play a future role

opportunism in multilateral vertical contracting nondiscrimination exclusivity and uniformity comment an input supplier selling to competing downstream firms would benefit from publicly committing at the outset to all contracts efficient commitment however would require complete contracts the authors study instead bilateral contracting without commitment regarding others terms each firm then fears that the supplier might opportunistically renegotiate another s contract to increase bilateral profit at the firm s expense the authors show that nondiscrimination clauses generally cannot curb such third party opportunism even with symmetric firms to reassure firms crude forms of commitment may be adopted this could explain the pervasiveness of exclusivity arrangements and the striking uniformity and intertemporal rigidity of franchise contracts copyright 1994 by american economic association

choice based on reasons the case of attraction and compromise effects building on previous research this article proposes that choice behavior under preference uncertainty may be easier to explain by assuming that consumers select the alternative supported by the best reasons this approach provides an explanation for the so called attraction effect and leads to the prediction of a compromise effect consistent with the hypotheses the results indicate that 1 brands tend to gain share when they become compromise alternatives in a choice set 2 attraction and compromise effects tend to be stronger among subjects who expect to justify their decisions to others and 3 selections of dominating and compromise brands are associated with more elaborate and difficult decisions

signalling and renegotiation in contractual relationships this paper examines how the possibility of renegotiation affects contractual outcomes in signaling games when an infinite number of rounds of renegotiations are allowed before contracts are executed the main results of the paper are 1 contracts may still contain distortions 2 the popular efficient separating equilibrium outcome is never an equilibrium outcome with renegotiation 3 incentive compatibility constraints can be generalized to incorporate renegotiation 4 equilibrium outcomes can be separating and nevertheless depend on the uninformed player s prior and 5 renegotiation in signaling games may lead to outcomes similar to equilibrium outcomes of screening games in which multiple contract purchases are allowed copyright 1993 by the econometric society

dyadic compromise effect existing research on the compromise effect has focused exclusively on the individual this paper investigates compromise effects in a setting that involves multiple individuals making a choice we study whether the dyadic compromise effect dce exists the association between dyadic and individual compromise effects and strategies to mitigate the dce we build a statistical model of dyadic choice that formally incorporates dce we conduct two studies to test our proposed models empirically in study 1 we begin with an investigation of the dce with student subjects in study 2 we test for the presence of dce among married couples when making retirement investment choices in both studies model free and model based evidence provides strong support for the presence of dce a model that incorporates dce provides a better fit than models that do not evidence in support of dce is shown to be robust to alternative compromise effect model specifications and utility aggregation methods we find that the indi

naked exclusion comment the ability of an incumbent firm to deter entry by writing exclusionary contracts with customers has been a subject of contention in the antitrust literature the courts concern with such exclusionary contracts has been challenged by those who argue that an incumbent faced with buyers whose interest is to promote entry and competition would have to pay buyers more for the inclusion of exclusionary provisions than it could possibly gain from exclusion in a provocative article eric b rasmusen et al 1991 henceforth rrw have argued that an incumbent may in fact be able to exclude rivals profitably using such contractual provisions because it can exploit buyers lack of coordination in essence if buyers expect other buyers to sign such provisions then they may see little reason not to do so themselves the rrw argument is potentially an important one because most alleged instances of entry deterrence through exclusionary contracts with customers occur in situations with multiple buyers unfortunately however rrw s two main results contain errors in this note we reconsider the rrw model providing correct characterizations of the likelihood and cost of exclusion for an incumbent firm our results indicate that while the intuition suggested by rrw is valid the equilibrium likelihood and cost of exclusion differ from what rrw derive moreover our analysis illuminates some further aspects of exclusionary contracting with multiple buyers among these issues we focus on how an incumbent can use discriminatory offers to exploit the externalities that exist among buyers in the provision of competition in section i we review the basic assumptions of the rrw model in sections ii and iii we then consider in turn the cases of simultaneous and sequential offers studied by rrw for the simultaneous model we distinguish between settings in which the incumbent can and cannot discriminate in its offers to different buyers this distinction is the source of the problem in rrw s analysis their simultaneous offer model assumes no discrimination but the proof of their proposition 2 assumes at times that discrimination is feasible we show that absent the ability to discriminate the incumbent can exclude profitably only when buyers fail to coordinate on their most preferred continuation equilibrium in contrast we show that when discrimination is possible the incumbent need not rely on a lack of buyer coordination to segal department of economics landau building stanford university stanford ca 94305 e mail ilya segal stanford edu whinston department of economics northwestern university 2003 sheridan road evanston il 60208 e mail mwhinston nwu edu we thank eric rasmusen john wiley and participants in the berkeley stanford iofest the university of copenhagen vertical restraints conference and a seminar at the antitrust division of the u s department of justice for helpful comments we thank federico echenique for excellent research assistance 1 for example a recent department of justice investigation concerned the use of exclusive contracts by the leading provider of computerized ticketing services ticketmaster most major cities have several large concert sports venues in many cities ticketmaster has exclusive contracts with a very large share of these venues 2 the other leading response to the argument that contracts with buyers cannot be a profitable method of exclusion is given in philippe aghion and patrick bolton 1987 section i one factor limiting the applicability of the aghion and bolton theory however is that it involves partial exclusion the contracts signed are not fully exclusionary they involve finite stipulated damages and the profitability of the strategy arises from extracting rents from an entrant when entry occurs indeed in the aghion and bolton model contracts that fully exclude offer no benefits over writing no contract at all in section iii of their paper aghion and bolton also discuss a two buyer version of their model in which externalities arise across buyers in contrast to the analysis here and in rrw they allow the incumbent to make an offer to a buyer i that is conditional on the acceptance decision of the other buyer 3 r innes and r j sexton 1994 also discuss the use of discriminatory offers in the context of a model in which buyers can form coalitions with the entrant

the application of contrast explanation to energy policy research uk nuclear energy policy 2002 2012 abstract this paper advances the application of the methodology contrast explanation to energy policy research research in energy policy is complex and often involves inter disciplinary work which traditional economic methodologies fail to capture consequently the more encompassing methodology of contrast explanation is assessed and its use in other social science disciplines explored in brief it is then applied to an energy policy research topic in this case nuclear energy policy research in the uk contrast explanation facilitates research into policy and decision making processes in energy studies and offers an alternative to the traditional economic methods used in energy research further contrast explanation is extended by the addition of contested and uncontested hypotheses analyses this research focuses on the methods employed to deliver the new nuclear programme of the uk government in order to achieve a sustainable nuclear energy policy three issues are of major importance 1 law policy and development 2 public administration and 3 project management further the research identifies that policy in the area remains to be resolved in particular at an institutional and legal level however contrary to the literature in some areas the research identifies a change of course as the uk concentrates on delivering a long term policy for the nuclear energy sector and the overall energy sector

health insurance subsidies and deductible choice evidence from regional variation in subsidy schemes the extent to which premium subsidies can influence health insurance choices is an open question in this paper we explore the regional variation in subsidy schemes in switzerland designed as either in kind or cash transfers to study their impact on the choice of health insurance deductibles using health survey data and a difference in differences methodology we find that in kind transfers increase the likelihood of choosing a low deductible plan by approximately 4 percentage points or 7 our results indicate that the response to in kind transfers is strongest among women middle aged and unmarried individuals which we explain by differences in risk taking behavior health status financial constraints health insurance and financial literacy we discuss our results in the light of potential extra marginal effects on the demand for health care services which are however not supported by our data

multiple unit holdings yield attenuated endowment effects previous endowment effect experiments have examined circumstances in which people encounter a single unit of a good e g one chocolate we contrast single unit treatments with multiple unit treatments in which participants encounter several units of a good e g five chocolates we observe endowment effects of typical magnitude for singleton holdings but attenuated endowment effects for multiple unit holdings moreover endowment effects consistently arise for singletons even as the definition of a unit is altered for instance participants holding one piece of chocolate show an endowment effect of standard size but so do participants holding one box of chocolates yet the box contains about 20 individual pieces of chocolate and participants given that many separate pieces show a substantially attenuated endowment effect we thus propose the property of unit dependence the definition of a unit can change but contingent on any given definition a pronounced endowment effect may emerge for singletons but not multiples this paper was accepted by teck ho decision analysis

the mirrlees approach to mechanism design with renegotiation with applications to hold up and risk sharing the paper studies the implementation problem first analyzed by maskin and moore 1999 in which two agents observe an unverifiable state of nature and may renegotiate inefficient outcomes following play of the mechanism we develop a first order approach to characterizing the set of implementable utility mappings in this problem paralleling mirrlees s 1971 first order analysis of standard mechanism design problems we use this characterization to study optimal contracting in hold up and risk sharing models in particular we examine when the contracting parties can optimally restrict attention to simple contracts such as noncontingent contracts and option contracts where only one agent sends a message

the distortionary effects of government procurement evidence from medicaid prescription drug purchasing in 2003 the federal state medicaid program provided prescription drug coverage to more than 50 million people to determine the price that it will pay for each drug medicaid uses the average private sector price when medicaid is a large part of the demand for a drug this creates an incentive for its maker to increase prices for other health care consumers using drug utilization and expenditure data for the top 200 drugs in 1997 and in 2002 we investigate the relationship between the medicaid market share mms and the average price of a prescription our estimates imply that a 10 percentage point increase in the mms is associated with a 7 to 10 percent increase in the average price of a prescription in addition the medicaid rules increase a firm s incentive to introduce new versions of a drug in order to raise price we find empirical evidence that firms producing newer drugs with larger sales to medicaid are more likely to introduce new versions taken together our findings suggest that government procurement rules can alter equilibrium price and product proliferation in the private sector

managing resource dependency the united states and japan in the markets for copper iron ore and bauxite abstract this study analyses the different arrangements through which the us and japan have procured their imports of non fuel minerals and attempts to shed light on the likely implications of these arrangements for the relations between these two countries it focuses on three critical minerals copper iron ore and bauxite which after oil constitute the core of every industrial society because both the us and japan exhibit high levels of dependence on foreign supplies of these three minerals it is clear that ensuring adequate supplies at reasonable costs will be a major guiding force in their respective future policies this paper examines factors affecting the international markets for these minerals the structure of investment production and trade and the relations with the source countries from the discussion of these issues two paradoxical themes emerge 1 that japan has been able to procure much of her raw materials during the 1960s and 1970s at more favourable terms than has the us even though the latter country had tighter links to its supply sources 2 that the changing conditions in the minerals industries under study have resulted in recent years in a convergence in the procurement mechanisms of the us and japan and this convergence is likely to increase strains on us japanese relations

exclusive contracts foster relationship specific investment exclusive contracts prohibit one or both parties from trading with anyone else contrary to earlier findings we show that investments that are specific to the contracting parties may be encouraged by exclusivity results depend on the nature of investments and the bargaining solution the major part of the analysis shows that exclusivity deals designed to assure the supply of essential inputs promote investment infinite penalties for breach even if ex post renegotiable may result in excessive investment in which case a positive but finite damage payment yields the first best outcome

upgrades switching costs and the leverage theory of tying this article investigates the role of product upgrades and consumer switching costs in the tying of complementary products previous analyses have found that a monopolist of one product will not increase its profits and reduce social welfare by tying and leveraging its monopoly position into a complementary market if the initial monopolised product is essential where essential means that all uses of the complementary good require the initial monopolised product we show that this is not true in settings characterised by product upgrades and consumer switching costs we also discuss various extensions including the role of the reversibility of tying

incomplete contracts and signaling this article presents a principal agent model in which asymmetric information leads to contractual incompleteness i show that in the presence of transactions costs incompleteness may act as a signal of the principal s type two types of transactions costs are considered those incurred ex ante drafting costs and those incurred ex post enforcement or verification costs i prove that in the presence of either of these costs asymmetric information leads to more contractual incompleteness than full information does

incomplete contracts specific investments and risk sharing an optimal contract design problem is considered contracts which are incomplete and simple are used to investigate the extent to which constrained revisions can mitigate inefficiencies resulting from contractual incompleteness an optimal contract is characterized in two cases first when a contract is being used to facilitate trade between two risk neutral parties who must make relationship specific investments it is possible to implement the first best by a simple contract second when a contract is being used to share risk it is generally not possible to implement the first best when one party is risk neutral however it is possible to implement the first best by assigning all the ex post decision rights to that party

nuclear energy consumption oil prices and economic growth evidence from highly industrialized countries this study utilizes the johansen cointegration technique the granger non causality test of toda and yamamoto 1995 the generalized impulse response function and the generalized forecast error variance decomposition to examine the dynamic interrelationship among nuclear energy consumption real oil price oil consumption and real income in six highly industrialized countries for the period 1965 2008 our empirical results indicate that the relationships between nuclear energy consumption and oil are as substitutes in the u s and canada while they are complementary in france japan and the u k second the long run income elasticity of nuclear energy is larger than one indicating that nuclear energy is a luxury good third the results of the granger causality test find evidence of unidirectional causality running from real income to nuclear energy consumption in japan a bidirectional relationship appears in canada germany and the u k while no causality exists in france and the u s we also find evidence of causality running from real oil price to nuclear energy consumption except for the u s and causality running from oil consumption to nuclear energy consumption in canada japan and the u k suggesting that changes in price and consumption of oil influence nuclear energy consumption finally the results observe transitory initial impacts of innovations in real income and oil consumption on nuclear energy consumption in the long run the impact of real oil price is relatively larger compared with that of real income on nuclear energy consumption in canada germany japan and the u s

the timing of mergers along the production chain capital structure and risk dynamics abstract i demonstrate that the timing of vertical mergers is generally dependent on industry characteristics my predictions are consistent with empirically observed patterns of vertical mergers i show that merger activity during economic upturns tends to be motivated by operating efficiencies while merger activity during economic downturns tends to occur as a means of keeping production chain operational mergers allow firms to capture synergies and improve efficiencies in order to survive economic contractions the pricing framework implies that a vertical merger decision usually reduces risk during two different economic states

the statistical debate on the net barter terms of trade between primary commodities and manufactures a comment and some additional evidence i950 p s hypothesis according to this hypothesis the net barter terms of trade nbtt between primary products and manufactures have over the longrun exhibited a downward trend spraos presented a detailed and thorough analysis of both the adequacy of the various statistical series available to proxy the nbtt s behaviour over the long run and the wide range of conceptual including quality problems involved in such an exercise on the basis of his analysis spraos concluded that the balance of the evidence for the seventy year period ending with the outbreak of world war ii supported the p s hypothesis of a secular deterioration in the nbtt it should however be noted that the evidence also suggested that the particular series cho sen for analysis by prebisch i950 himself did appear to exaggerate possibly to a large extent the rate of deterioration however when the analysis was extended to include the post world war ii period spraos found that while the deteriorating tendency cannot be decisively refuted it is open to doubt when the record up to the i970s is taken into account i980 p i26 as we shall see in this paper closer scrutiny reveals a statistical problem with spraos s analysis and the purpose of this paper is to show that once appropriate action is taken to overcome this problem some quite strong evidence in support of the p s hypothesis emerges the paper is organised as follows section i briefly discusses spraos s methodology and section ii discusses an econometric issue arising from this analysis section iii presents our empirical evidence while section iv summarises the main findings of the paper

strategic ex ante contracts rent extraction and opportunity costs this article cosiders the possibility that a seller can contract with one uninformed buyer prior to an auction involving two potential buyers the seller s optimal strategic ex ante contract more accurately reflects joint opportunity costs of the seller and the contracted buyer and therefore extracts more rent from the entrant moreover this ex ante contract mitigates the seller s ex post rent seeking vis a vis the contracted buyer accordingly it may create more social welfare than the absence of ex ante contracts depending upon the contracted buyer s financial constraint and the distributions of trade surplus implementation of the optimal strategic ex ante contract and policy implications are discussed

buyer power and intrabrand coordination we analyze the competitive effects of vertical contracts in a contracting situation where rival retailers offer contracts to a manufacturer in contrast to bernheim and whinston 1998 who study the situation in which competing manufacturers offer contracts to a common retailer we find that two part tariffs even if contingent on exclusivity or not do not suffice to implement the monopolyoutcome richer arrangements including e g conditional fixed fees and upfront payments are thus required to internalize all contracting externalities the welfare implications are ambiguous on the one hand richer contracts ensure that no efficient retailer is excluded on the other hand they allow firms to maintain monopoly prices despite intrabrand competition simulations suggest that the latter effect may be more significant

choice price competition and complexity in markets for health insurance abstract the united states and other nations rely on consumer choice and price competition between competing health plans to allocate resources in the health sector while a great deal of research has examined the efficiency consequences of adverse selection in health insurance markets less attention has been devoted to other aspects of consumer choice the nation of switzerland offers a unique opportunity to study price competition in health insurance markets switzerland regulates health insurance markets with the aim of minimizing adverse selection and encouraging strong price competition we examine consumer responses to price differences in local markets and the degree of price variation in local markets using both survey data and observations on local markets we obtain evidence suggesting that as the number of choices offered to individuals grows their willingness to switch plans given a set of price dispersion differences declines which allows large price differences for relatively homogeneous products to persist we consider explanations for this phenomenon from economics and psychology

health insurance eligibility utilization of medical care and child health two economists applied data from the current population survey and the national health interview survey and state level data on child mortality to a simulation model of utilization of medical care that varies only with the states legislative environment to examine the utilization of medical care and health effects of medicaid eligibility on low income children the models took into consideration the recent expansions of medicaid to low income children 38 of those ineligible for medicaid in 1984 who became eligible due to changes during 1984 1992 were uninsured between 1984 and 1992 expansions of the medicaid program increased the proportion of children eligible for medicaid almost two fold 16 1 vs 31 2 yet coverage rates were always lower than eligibility rates 13 2 vs 16 1 in 1984 and 20 3 vs 31 2 in 1992 and the increase in coverage rates was only about 50 of the increase in eligibility rates during 1984 1992 the probability that a child was eligible for medicaid increased the probability of health insurance coverage by 29 77 when the model considered bias in variables e g a recession in a state the take up rate was only 22 73 nevertheless medicaid markedly increased use of medical care for example eligibility for medicaid increased the likelihood of making a visit to a physicians office in the last two weeks by about 50 it also increased the probability of a child visiting the hospital suggesting inefficiency in the way that providers deliver care to medicaid enrollees medicaid eligibility had a significant effect on reducing child mortality the 15 1 percentage point increase in eligibility during 1984 1992 reduced child mortality by 4 5 when the researchers examined parent assessed subjective health measures medicaid eligibility had no effect on child health medicaid eligibility reduced race and education based disparities in the number of visits and racial differences in mortality yet it may actually intensify current disparities in health care delivery site