determinants of obesity in brazil the effects of trade liberalization and socio economic variables this article aims to evaluate a possible relation between increased brazilian trade openness and increasing observed rates of overweight and obesity during the last 25 years we develop an economic

an analysis of feed in tariff remuneration models implications for renewable energy investment recent experience from around the world suggests that feed in tariffs fits are the most effective policy to encourage the rapid and sustained deployment of renewable energy there are several different ways to structure a fit policy each with its own strengths and weaknesses this paper presents an overview of seven different ways to structure the remuneration of a fit policy divided into two broad categories those in which remuneration is dependent on the electricity price and those that remain independent from it this paper examines the advantages and disadvantages of these different fit models and concludes with an analysis of these design options with a focus on their implications both for investors and for society

design and analysis of simulated consumer choice or allocation experiments an approach based on aggregate data the authors integrate concepts in conjoint analysis and discrete choice theory in econometrics to develop a new approach to the design and analysis of controlled consumer choice or resource allocat

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

wind power development in sweden global policies and local obstacles abstract recently the swedish government adopted a national planning goal of a yearly wind power generation of 10 twh by 2015 implying a substantial increase from the current 0 6 twh level in this paper we provide an economic assessment of the potential for future wind power investments in sweden in close conjunction with an analysis of the legal attitudinal and policy related uncertainties that face a wind mill investor it is shown that the economics of swedish wind power is negatively affected by a the lack of policy stability b public criticism at the local level and in particular c the legal provisions governing the assessment of the environmental impacts of wind mills and the planning procedures for mill location while national and global energy policies as well as the general public point out wind power as particularly environmentally friendly most of the objections to its expansion at the local level tend to have environmental origins the interests of those who object to wind mill installations gain strong legal protection and the municipal territorial planning monopoly in sweden implies that it is hard to make national energy policy goals heard at the local implementation stage compared to its competitors wind power is the technology that tends to have the most to loose from the risk and uncertainties created by this investment environment the paper identifies and discusses a number of ways in which the national policy interests could be strengthened at the local level we discuss the role of citizen participation as well as solutions within the realms of the legal system moreover since the diffusion of wind power encounters the most strident legal and attitudinal obstacles where it interferes with competing land uses a move offshore appears to be an efficient strategy from the perspective of a wind mill investor a stronger political commitment to wind power expansion in legal provisions as well as in the form of long run stability in policy instrument implementation will probably be necessary to attain the 2015 policy goal

equilibrium in hotelling s model of spatial competition we study hotelling s two stage model of spatial competition in which two firms first simultaneously choose locations in the unit interval then simultaneously choose prices under hotelling s assumptions uniform distribution of consumers travel cost proportional to distance inelastic demand of one unit by each consumer the price setting subgames possess equilibria in pure strategies for only a limited set of location pairs because of this problem pointed out independently by vickrey 1964 and d aspremont et al 1979 hotelling s claim that there is an equilibrium of the two stage game in which the firms locate close to each other is incorrect a result of dasgupta and maskin 1986 guarantees that each price setting subgame has an equilibrium in mixed strategies we first study these mixed strategy equilibria we are unable to provide a complete characterization of them although we show that for a subset of location pairs all equilibria are of a certain type we reduce the problem of finding an equilibrium of this type to that of solving three or fewer highly nonlinear equations at each of a large number of location pairs we have computed approximate solutions to the system of equations next we use our analytical results and computations to study the equilibrium location choices of the firms there is a unique up to symmetry subgame perfect equilibrium in which the location choices of the firms are pure in it the firms locate 0 27 from the ends of the market at this equilibrium the support of the subgame equilibrium price strategy is the union of two short intervals most of the probability weight is in the upper interval so that this strategy is reminiscent of occasional sales by the firms we also find a subgame perfect equilibrium in which each firm uses a mixed strategy in locations in fact in the class of strategy pairs in which the firms use the same mixed strategy over locations and this strategy is symmetric about 0 5 there is a single equilibrium in this equilibrium most of the probability weight of the common strategy is between 0 2 and 0 4 and between 0 6 and 0 8 there is a wide range of pure nash as opposed to subgame perfect equilibrium location pairs the subgame strategies in which each firm threatens to charge a price of zero in response to a deviation support all but those location pairs in which the firms are very close

the investor specific price of renewable energy project risk a choice experiment with incumbent utilities and institutional investors abstract renewable energy investments in germany have recently soared trebling the output of wind and solar power generation in only ten years while incumbent utilities have lagged behind in terms of investment new entrants have significantly contributed to this growth existing literature has primarily focused on explaining the lethargy of incumbents former investments although there is a growing need to investigate recent investment drivers to secure the necessary power plant capacity at a moderate cost from incumbents and new entrants alike to close this gap a choice experiment involving 1 659 investment choices by 52 european professional investors was conducted in significant contrast to the case with altruistic investors this survey underlines the importance of using financial incentives to attract professional investors given full exposure to electricity price risk incumbent utilities would facilitate projects at a 3 04 risk premium whereas institutional investors demand 6 61 generally incumbent utilities and institutional investors are equally attracted by low risk projects however when risk increases institutional investors are more hesitant to become involved while incumbent utilities confidently navigate these higher risk projects

firm mobility and location equilibrium two types of location equilibria are compared the first one is that of a simultaneous price and location game the second is that of a two stage location then price game it is suggested that equilibrium locations are further apart under the second and profits are higher since firms internalize the harmful price competition effect of moving close to each other the paper introduces a nonpurchase option into the logit model of spatial competition and the sensitivity of the equilibrium is analyzed

the principle of minimum differentiation holds under sufficient heterogeneity the so called principle of minimum differentiation stated by hotelling has been challenged by many authors this paper restores the principle by showing that n firms locate at the center of the market and charge prices higher than the marginal cost of production when heterogeneity in consumers tastes is large enough

analyzing public preferences and increasing acceptability for the renewable portfolio standard in korea abstract in order to respond to the challenge of climate change similar to other countries korea has announced various policies to vitalize the development and uptake of renewable energy the renewable portfolio standard rps is the most striking example of a policy in this area this study employs a conjoint survey and bayesian mixed logit model to analyze consumer preferences for specific attributes of the rps policy it analyzes households marginal willingness to pay mwtp for the rps with specific attributes and simulates the degree of household acceptability of the policy through a scenario analysis comparison between costs and benefits of implementing the policy is also attempted by analyzing the households mwtp with the actual transition expense of rps implementation incurred by electricity supply companies the simulation results provide implications for improving rps policy implementation households consider the creation of new jobs as the most important policy attribute followed by increase in electricity prices damage to forests reduction in co 2 emissions and length of power outages moreover the korean household is willing to accept an increase of up to 1 39 in its electricity prices relative to 2012 and the median mwtp of each household for rps implementation is krw 734 99 month usd 0 67 month

willingness to pay for renewable energy primary and discretionary choice of british households for micro generation technologies this paper documents the policy context of renewable energy production in the european union the research adopts a choice experiment approach to investigate households wtp for these renewable energy technologies in the uk the micro generation technologies comprise solar photovoltaic micro wind solar thermal heat pumps and biomass boilers and pellet stoves the study compares the results from conditional and mixed logit models which estimate the distribution of utility coefficients and then derives wtp values as a ratio of the attribute coefficient to the price coefficient with a model in which the wtp distribution is estimated directly from utility in the money space the results suggest that whilst renewable energy adoption is significantly valued by households this value is not sufficiently large for the vast majority of households to cover the higher capital costs of micro generation energy technologies

economic factors affecting the increase in obesity in the united states differential response to price abstract a sharp increase in obesity during the last 15 years in the united states became one of the nation s main public health problems the theory of rational addiction seems to explain human behavior in food consumption leading to obesity reasonably well the interesting thing about our results is that the tax policy normally used to correct various distortions is to serve in this case as the preventive policy additional taxes on future prices of the addictive sweet foods contribute to lower sugar consumption and bmi at present time on the other hand increasing education level is usually considered a preventive type of policy in this case it leads to lowering the levels of the bmi in already overweight and obese population

what moves parties the role of public opinion and global economic conditions in western europe do western european political parties adjust their ideological positions in response to shifts in public opinion and to changing global economic conditions based on a time series cross sectional analysis of parties ideological dynamics in eight western european democracies from 1976 1998 the authors conclude that both factors influence parties ideological positions but that this relationship is mediated by the type of party specifically they find that parties of the center and right react to both public opinion and the global economy whereas parties of the left display no discernible tendency to respond to public opinion and also appear less responsive to global economic conditions the findings on leftist parties distinctiveness support arguments about these parties long term policy orientations as well as about their organizational structures the authors also find little support for neoliberal convergence arguments

wind power implementation the nature of public attitudes equity and fairness instead of backyard motives abstract public attitudes anywhere in europe show moderate to strong support for the implementation of renewable energy nevertheless planning wind power developments appears to be a complicated matter in most countries the problems that have to be dealt with during decision making processes on the siting of wind turbines are usually referred to as mere communication problems however public attitudes towards wind power are fundamentally different from attitudes towards wind farms this gap causes misunderstandings about the nature of public support for renewables in particular where planners easily assume support for renewables can be generated by information campaigns emphasising the environmental benefits whereas opposition to renewable energy schemes can be explained by a selfish not in my backyard attitude both explanations used by planners authorities and unfortunately by many scholars are falsified furthermore policies that still take this common knowledge for granted can have negative consequences for the implementation rates of renewables visual evaluation of the impact of wind power on landscape values is by far the dominant factor in explaining why some are opposed to wind power and others are supporting it moreover feelings about equity and fairness appear the determinants of backyard motives instead of selfishness

compound real options valuation of renewable energy projects the case of a wind farm in serbia abstract renewable energy sources have become a very important issue due to environmental and sustainability concerns in addition most renewable energy electricity generation res e projects are characterized by considerable uncertainty and sequential decision making these projects net present value npv is very often close to zero which renders them a good candidate for the application of real options valuation methodology of investment project appraisal this paper examines the real options valuation of a potential onshore wind farm project in serbia the binomial tree model spans a 15 year period consisting of a 2 year investment period and a 13 year operating period the first 12 years of which are protected by feed in tariffs according to local renewable energy regulations the authors examine a multi phased compound nested path dependent real option consisting of mutually exclusive options a sequential option to invest as well as expand repower contract and abandon options volatility which is calculated by means of a monte carlo simulation according to the logarithmic present value returns approach shows predominant sensitivity to the capacity factor simulated with the rescaled weibull s probability distribution the final binomial tree results show that the proposed sequence of options increases project value by transforming higher risk and lower return in the initial discounted cash flow model to lower risk and higher return in the ro model this paper contributes to the existing literature in at least two ways it presents in depth analysis of the real option application to the res e project and provides decision makers with sophisticated tool for improving strategic thinking capital budgeting and decision making processes

a representative consumer theory of the logit model the log it model is usually derived from a discrete choice approach with stoc hastic utilities it is shown here that the logit demand system may also be derived from the maximization of a deterministic entropy type utility the latter may be interpreted as the preference function of a representative consumer with variety seeking behavior this altern ative view suggests a generalization of the standard logit which allo ws total demand to be determined endogenously copyright 1988 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

spatial pricing in the united states west germany and japan this paper investigates the spatial pricing policies of a sample of firms in the united states west germany and japan we begin in section i by providing general results for the three countries these suggest that f o b pricing is the exception rather than the rule furthermore there appear to be significant differences between the countries in the degree of spatial price discrimination the remainder of the paper examines whether the inter country differences in spatial discrimination can be explained by a theory of spatial pricing section ii uses the theory of spatial pricing proposed in greenhut and greenhut 1975 to derive an operational model in section iii the parameters of this model are estimated from the individual country data and the results are discussed section iv presents the conclusions the data used in this study were obtained from a survey of firms in the three countries in each country target regions were selected with a similar urban rural proportions as restricted by b existing acquaintanceships with professors in or near these urban rural centres survey constraint b was imposed after a mailed questionnaire pilot study in the united states had indicated a likely need for follow up mailings phone calls and even interviews before a sufficient number of responses from a particular place e g a particular state in the united states could be expected after selecting our comparable survey areas firms were picked at random from industrial lists of business establishments in each country and questionnaires were mailed to them the questionnaire is reproduced in the appendix the firms that returned questionnaires were compared to non responding firms no distinction in size of firm industry type or location was apparent for any country or sub region studied among the respondents we dropped from the sample all firms that were not subject to a significant freight cost defined to be a 5 per cent minimum freight cost to delivered cost ratio on sales to at least one distant market point our findings on pricing strategies are summarized in table 1 firms in the united states tend to price discriminatorily of 174 sampled firms less than one third priced non discriminatorily f o b the spokesmen for the remaining firms 67 per cent admitted that they did not add full freight cost to their mill price on all of their distant sales these firms therefore priced discriminatorily the tendency to price discriminatorily is even greater in west germany and japan with the percentage of discriminating firms approximately

the effects of economic status and recent experience on innovative behavior under environmental variability an experimental approach we build and empirically test a model that predicts the display of innovative behavior as a function of environmental change with recent experience and economic status acting as moderators we start with the model developed by slevin 1971 which evolved from the so called innovation boundary this is the threshold beyond which the display of innovative behavior becomes attractive we show how environmental change creates uncertainty about the position of the innovation boundary however this uncertainty is reduced by recent experiences furthermore economic status serves as both an enhancer and an inhibitor of innovation our model was tested and largely confirmed in two experiments one conducted in a laboratory setting and one conducted as a discrete choice experiment currently experiments are rarely conducted in the field of innovation studies by presenting this evidence we also hope to encourage more authors to conduct experiments in their work

applied welfare economics with discrete choice models economists have been paying increasing attention to the study of situations in which consumers face a discrete rather than a continuous set of choices such models are potentially very important in evaluating the impact of government programs upon consumer welfare but very little has been said in general regarding the tools of applied welfare economics indiscrete choice situations this paper shows how the conventional methods of applied welfare economics can be modified to handle such cases it focuses on the computation of the excess burden of taxation and the evaluation of quality change the results are applied to stochastic utility models including the popular cases of probit and logit analysis throughout the emphasis is on providing rigorous guidelines for carrying out applied work this abstract was borrowed from another version of this item

equilibrium with product differentiation tive consumer formulations is used to examine the properties of single and multiple price equilibria conditions under which decreases in the intensity of consumer preferences reduce price are given it is shown that with certain types of demand curves entry can eliminate price cost markups even given product differentiation if competition is localized it is demonstrated that entry does not affect the markup finally the effect of spurious product differentiation on price is examined

social acceptance of renewable energy innovation an introduction to the concept this paper introduces the special issue on social acceptance of renewable energy innovation it is a collection of best papers presented at an international research conference held in tramelan switzerland in february 2006 while there are ambitious government targets to increase the share of renewable energy in many countries it is increasingly recognized that social acceptance may be a constraining factor in achieving this target this is particularly apparent in the case of wind energy which has become a subject of contested debates in several countries largely due to its visual impact on landscapes this paper introduces three dimensions of social acceptance namely socio political community and market acceptance factors influencing socio political and community acceptance are increasingly recognized as being important for understanding the apparent contradictions between general public support for renewable energy innovation and the difficult realization of specific projects the third dimension market acceptance has received less attention so far and provides opportunities for further research particularly from management scholars

taxes and subsidies for pollution intensive industries as trade policy abstract this paper constructs a model of international oligopoly with negative externalities in production in which optimal environmental policy responses to foreign emission tax and subsidy programs can be calculated it is shown that by granting subsidies for abatement efforts or for a heavily taxed polluting input domestic net welfare is improved by capturing a greater share of the world market since the subsidy programs are supposed to improve the quality of the global environment they can be justified on environmental grounds in addition we show that a pigouvion emission tax restores efficiency in natural resource allocation whereas subsidy programs are in principle used as instruments in imperfectly competitive international markets

trade tastes and nutrition in india this paper introduces habit formation into an otherwise standard model of international trade household tastes evolve over time to favor foods consumed as a child the opening of trade causes preferred goods to rise in price as these were relatively inexpensive in autarky neglecting the correlation between tastes and agro climatic endowments overstates the short run nutritional gains from agricultural trade liberalization and masks potential caloric losses for laborers i examine the predictions of this model of trade with habit formation using household survey data from india both by looking across indian regions and by examining the consumption patterns of inter state migrants

public acceptance of energy technologies the effects of labeling time and heterogeneity in a discrete choice experiment public acceptance is crucial for successful implementation of energy technologies in society however studies that use the concept do so in diverse and often inconsistent ways they also often limit themselves to specific technologies and do not account for the effects of labeling time and the heterogeneity of the general public which may lead to a biased and incomplete understanding of public acceptance this study first conceptualizes three forms of public acceptance socio political acceptance market acceptance and community acceptance it then relates the concept of socio political acceptance to preference formation next it uses two discrete choice experiments that were conducted in 2010 and 2012 to investigate these concerns our results show that public preferences for energy technologies are temporally stable even in the face of exogenous shocks such as the fukushima incident using mixed logit models we further show that labeling has a profound influence on stated preferences when technology labels are revealed respondents favor renewable and natural gas technologies when labels remain unobserved nuclear energy and biomass take prominence however latent class models show that there are distinct classes of respondents tied to specific socio demographic characteristics that differ greatly in their sensitivity to labeling and in the temporal stability of their preferences it follows that changes in public acceptance are not population wide but remain limited to specific sub groups we discuss the theoretical and policy implications of our findings and conclude that future studies and policy initiatives may overlook important insights if they disregard the effects of labels time and heterogeneity

social surplus and profitability under different spatial pricing policies one of the most controversial parts of the u s antitrust laws is the robinson patman act posner has argued it should be discarded entirely 34 bork has called it the misshapen progeny of intolerable draughtsmanship coupled to wholly mistaken economic theory 10 382 the robinson patman act is an amendment passed in 1936 to section 2 of the clayton act in the words of its co sponsor its purpose was to prevent discrimination between competing customers of a seller so that any price differentials should be limited to the sound economic differences in costs 33 5 because of its concern with price discrimination it is the robinson patman act that is relevant to the spatial pricing policies of firms however the precise limitations the law imposes on spatial prices are not exactly well defined one point is relatively clear that no question of unlawful price discrimination would arise so long as the f o b price is 1 uniform and 2 available to all customers on a nondiscriminatory basis no legal requirement exists that the alternative f o b price be of any particular amount or computed in any particular way 85 f t c 1174 1176 1 49 while f o b mill pricing is legally unassailable the legal status of uniform delivered pricing where firms charge the same price at all points of sale is somewhat ambivalent see dunn 16 for a discussion what is certain is that firms charging neither mill nor uniform prices may be open to successful prosecution especially if they set price schedules which have bumpdip changes for example in the utah pie case see breit and elzinga 12 for more details firms were found guilty of price discrimination since their delivered prices were lower in the local utah market than at points closer to their plants

personalized pricing and advertising an asymmetric equilibrium analysis we study personalized price competition with costly advertising among n quality cost differentiated firms strategies involve mixing over both prices and whether to advertise in equilibrium only the top two firms advertise earning bertrand like profits welfare losses initially rise then fall with the ad cost with losses due to excessive advertising and sales by the wrong firm when firms are symmetric the symmetric equilibrium yields perverse comparative statics and is unstable our key results apply when demand is elastic when ad costs are heterogeneous and with noise in consumer tastes

cross border externalities and trade liberalization the strategic control of pollution the authors examine international trade in a commodity whose production creates a negative externality for the importing country and they consider the nations strategic policy choices when they can restrict trade and when they are bound by a free trade agreement when pollution abatement technology is available the exporting country induces its adoption despite national indifference to the externality in order to reduce the tariff in a free trade agreement environmental policy is used to exploit monopoly power in trade an alternative policy instrument a process standard is introduced national competition in controlling emissions leads to very restrictive antipollution measures we examine international trade in a commodity whose production creates a negative externality for the importing country and we consider the nations strategic policy choices when they can restrict trade and when they are bound by a free trade agreement when pollution abatement technology is available the exporting country induces its adoption despite national indifference to the externality in order to reduce the tariff in a free trade agreement environmental policy is used to exploit monopoly power in trade an alternative policy instrument a process standard is introduced national competition in controlling emissions leads to very restrictive anti pollution measures

equilibrium vertical differentiation in a bertrand model with capacity precommitment both quality differentiation and capacity commitment have been shown to relax price competition however their joint influence on the outcome of price competition has not yet been assessed in this article we consider a three stage game in which firms choose quality then commit to capacity and finally compete in price when the cost of quality is negligible we show that firms do not differentiate their products in a subgame perfect equilibrium in other words capacity precommitment completely eliminates the incentive to differentiate by quality

keep it local and fish friendly social acceptance of hydropower projects in switzerland hydropower is the largest source of renewable electricity in the world but despite being a mature and clean energy technology it has also been the subject of ecological and social conflict literature suggests that the social acceptance of renewable energy can be increased by respecting procedural justice fair participatory planning processes and distributional justice fairly allocating costs and benefits however empirical evidence about how justice considerations are related to the expansion of hydropower is scarce pre existing studies being mostly qualitative in nature we contribute to filling the gap in the current literature by describing in this paper how choice experiments with 1004 swiss residents were undertaken to explore the influence of procedural and distributional justice on acceptance relative to other attributes of hydropower projects we find that while considerations about justice do play a role in decisions to accept respondents in switzerland care most about ecological impacts and secondly about local ownership

social acceptance of low carbon energy and associated infrastructures a critical discussion the promotion of low carbon energy and associated infrastructures for tackling climate change is a central task for governments worldwide however public and mainly local opposition to those infrastructures may slow down or even halt that process thus in the last few years a body of research has developed specifically to understand the social acceptance of technologies such as wind turbines or bioenergy plants we argue that the use of acceptance in this literature should be further discussed we contend that using the word acceptance may present some constraints for the theoretical advancement of this area of research and to the implications that may be taken from it to the wider society this is further highlighted through the presentation of findings from surveys conducted with nationally representative samples from the uk and norway which examined their acceptance of and support for new high voltage power lines we conclude by suggesting that the literature on public responses towards low carbon energy and associated infrastructures should be more critical in the conceptualisation of its research agenda become empirically more consistent and transparent and examine other types of relations between people and energy infrastructures besides acceptance or opposition

exploring the consumer decision process in the adoption of solar energy systems this study examines residential solar energy systems within an adoption and diffusion of innovations framework the findings indicate considerable differences between adopters and nonadopters on many measures multivariate nominal scale analysis is used to develop classification models based on both attribute perceptions of solar energy systems and demographic characteristics

spatial price discrimination with heterogeneous products product heterogeneity is introduced into the context of spatial price discrimination many of the strong properties of the standard homogeneous goods case which are attained as a limit case here are shown to be no longer valid in particular the social optimum is no longer sustainable as a market equilibrium unless products are either identical or else very different

nudging acceptability for wood ash recycling in forests a choice experiment abstract in this paper our objective is to assess the general french population s acceptability of application of wood ash in forests a measure currently not allowed but under consideration by the government the main originality of our approach is that we test how a nudge can be used as an instrument to increase social acceptability conveying objective information regarding ash recycling furthermore although we do not consider it as a welfare measure we show how the estimation of the willingness to pay can be considered as a complement to the more traditional social acceptability measure three nudges were introduced as three treatments in a discrete choice experiment in the first treatment the options with wood ash application were highlighted to indicate to the respondents that they corresponded to pro environmental measures positive framing in the second treatment we changed the wording of the two non status quo options to highlight the recycling aspect of wood ash application in the last treatment we adopted a productive wording to highlight the fact that wood ash application increases wood production treatments in particular positive framing and productive wording influence the willingness to pay but depend on the attitudes of the respondents

trade and dietary diversity in eastern europe and central asia abstract in public and academic debates the linkages between agricultural markets and nutrition across the world are vividly discussed this paper contributes to the ongoing debate by analyzing the relationship between greater openness to trade and dietary diversity it focuses on the post communist countries of eastern europe and central asia where trade reforms triggered growth in trade flows and foreign direct investment which in turn affected food systems in these countries this shift provides a natural experiment for studying the effects of trade openness on agricultural markets and consumer behaviour reduction in trade barriers for instance in the context of the accession to the wto and the eu and the gradual integration with world markets after 1991 had implications for diets through changes in production prices and incomes we utilize country level panel data for 26 post communist countries in the period 1996 2013 to assess the effects of trade costs agricultural trade openness and incomes on dietary diversity measured by the shannon entropy index the results from fixed effects and instrumental variables estimation are consistent with previous findings that income growth affects dietary diversity positively they also provide novel evidence that trade barriers reduce variety of products available in domestic markets in particular fruits and vegetables

globalisation and obesity he externalities arising as a consequence of trade liberalisation have rarely been a topicof much public debate a possible exception would be the relationship between the inter national trade and resulting environmental degradation markusen 1975 conrad 1993 ludema and wooton 1994 even then the mechanisms that link the volume of internationaltrade and the rate of environmental degradation are seldom adequately explained part of theproblem is that the environmental problems that are faced are extremely varied both in char acter and severity and it is fruitless to attempt to provide a single remedy for all of them but environmental degradation is hardly the only externality caused by trade liberalisation ifone considers a broader process such as globalisation de ned as a process by which national regional economies societies and cultures have become integrated through a global networkof economic technological socio cultural political and biological factors croucher 2004 rather than the trade liberalisation only the possibility of its resulting externalities increasessigni cantly there is for example a growing literature addressing possible adverse impact ofglobalisation including trade liberalisation on cultural diversity within in particular non wes tern countries castells 1997 cowen 2002 segerstrom 2003 in addition the relevance ofthe topic is underscored by the unesco 2001 universal declaration on cultural diversity which emphasises the role of cultural goods as vectors of identity and is concerned aboutcurrent trade imbalances in related sectors furthermore one can easily imagine the adverseimpact of globalisation with its free ow of people goods and in turn the lifestyle on spread ing of infectious diseases such as aids altman 1999 attawell 2004 according to the world health organization who 2006 approximately 1 6 billionadults were overweight and at least 400 million were obese in 2005 all around the world more recent statistics show that just in the united states 33 3 percentage of the total popula tion is obese and about 60 percentage is overweight or obese wyatt et al 2006 who 2009 these numbers set the united states among top three countries in the world with thehighest obesity rate who 2009 shared with egypt and saudi arabia obesity has not onlyincreased in developed countries but more surprisingly in developing countries as well according to the food and agriculture organization of the united nations fao 2008 obesity increases rapidly in developing countries even in those where hunger still exists forinstance the number of overweight people increased from less than 10 to 15 percentage inchina during the last two decades in sub saharan countries where hunger rates are the high est obesity is increasing as well some developing countries such as brazil and colombia have 40 percentage of overweight or obesity rate a number comparable to those in developedcountries due to this rapid and continuous global increase of obesity the who describesobesity as a global epidemic

how are preferences revealed revealed preferences are tastes that rationalize an economic agent s observed actions normative preferences represent the agent s actual interests it sometimes makes sense to assume that revealed preferences are identical to normative preferences but there are many cases where this assumption is violated we identify five factors that increase the likelihood of a disparity between revealed preferences and normative preferences passive choice complexity limited personal experience third party marketing and intertemporal choice we then discuss six approaches that jointly contribute to the identification of normative preferences structural estimation active decisions asymptotic choice aggregated revealed preferences reported preferences and informed preferences each of these approaches uses consumer behavior to infer some property of normative preferences without equating revealed and normative preferences we illustrate these issues with evidence from savings and investment outcomes

rational choice under an imperfect ability to choose we consider an individual who lacks the information processing capacity required for a direct comparison of all feasible allocations instead of finding at once a best allocation the individual myopically adjusts his current allocation toward higher utility the individual makes adjustment errors inversely proportional to his ability to choose we compare the stationary state of this process with the standard model we see how an imperfect ability to choose modifies both positive and normative predictions of the standard model and how the standard model can be obtained from our more general one as the special case corresponding to perfect ability jel d 11

comparative advertising disclosing horizontal match information improved consumer information about horizontal aspects of products of similar quality leads to better consumer matching but also to higher prices so consumer surplus can go up or down while profits rise with enough quality asymmetry though the higher quality and hence larger firm s price falls with more information so both effects benefit consumers this occurs when comparative advertising is used against a large firm by a small one comparative advertising as it imparts more information therefore helps consumers although it also improves the profitability of the small firm overall welfare goes down because of the large loss to the attacked firm

where to locate in a circular city abstract we study the location choices by cournot oligopolists in a circular market where consumers are located uniformly along the circumference we analyze the subgame perfect nash equilibria spne of a two stage location quantity game we demonstrate that the equidistant location pattern is only one of the many equilibrium location patterns that arise in a circular market nonequidistant multiple or a continuum of location equilibria may also arise both spatial agglomeration and dispersion or a combination of agglomeration and dispersion may occur in equilibrium in the case of infinitely many location equilibria we establish the welfare equivalence of the equilibrium location patterns

aggregation and imperfect competition on the existence of equilibrium we present a new approach to the theory of imperfect competition and apply it to study price competition among differentiated products the central result provides general conditions under which there exists a pure strategy price equilibrium for any number of firms producing any set of products this includes products with multi dimen sional attributes in addition to the proof of existence we provide conditions for uniqueness our analysis covers location models the characteristics approach and probabilistic choice together in a unified framework to prove existence we employ aggregation theorems due to prekopa 1971 and borell 1975 our companion paper caplin and nalebuff 1991 introduces these theorems and develops the application to super majority voting rules we present a new approach to the theory of imperfect competition and apply it to study price competition among differentiated products the central result is that there exists a pure strategy price equilibrium for any number of firms producing any set of products in addition to the proof of existence we provide conditions for uniqueness our model both unites diverse strands of the earlier literature and opens up uncharted areas for future analysis in particular we expand the traditional one dimensional framework to allow for multi dimen sional product differentiation our approach involves twin restrictions on consumer preferences one on individuals preferences the other on the distribution of preferences across society these are generalizations of the restrictions supporting 64 majority rule presented in caplin and nalebuff 1988 to prove existence we apply a new technique of aggregation this technique is valuable in a variety of other problems in the companion paper we use the aggregation result to generalize our earlier work on 64 majority rule and to characterize the relationship between the distribution of human capital and the distribution of income caplin and nalebuff 1991 there are additional applications in statistics and in search theory we begin with a brief review of the early literature on imperfect competition describing in more detail the existence problem and previous solutions section 3 presents our twin assumptions and shows that they cover many standard cases in section 4 we introduce the aggregation theorem and use it in the analysis of demand functions the proof of existence of equilibrium is in section

from utilities to mental models a critical survey on decision rules and cognition in consumer choice this work critically discusses a selected body of mainly experimental studies on consumer behavior in the light of two general questions first can one identify within the vast literature from psychology marketing etc a few stylized facts which might be the grounds of a behavioral theory of consumption parsimonious enough to be useful to economic theorizing and at the same time not in open violation of the evidence on how consumers actually behave second to what extent should such theories be nested into an explicit account of the cognitive processes leading to particular consumption acts copyright 1999 by oxford university press

competition of firms discriminatory pricing and location1 two costlessly mobile firms are to be located in a market region a subset of the plane the firms compete by setting locations and delivered price schedules to study this competitive stiuation an appropriate extensive form game is defined along with an appropri ate noncooperative solution concept existence and general properties of the equilibrium are demonstrated among the results are each firm increases its profit by locating so as to decrease total cost to both firms of serving the market firms will never locate coinciden tally if they have identical production costs and transport cost rates or if these are different and the firms are located in a circular market region having a uniform demand distribution this paper studies competition between two profit maximizing firms in space who are costlessly mobile and may discriminate in price we will allow the firms to set locations and delivered price schedules and we will be concerned with the existence and properties of equilibria in location and price starting with hotelling 9 the spatial competition literature has focused on location on bounded linear markets by two or more firms hotelling assumed identical firms that produced a single good with constant cost of production and considered consumers to be uniformly distributed and to have inelastic demand he also assumed that the consumers pay transport cost and purchase the good from the cheapest source hotelling claimed that a nash equilibrium in locations for the two firm market existed and yielded back to back locations at the center of the market many authors most recently d aspremont gabszewicz and thisse 2 have noted that an equilbrium in prices and location does not exist for hotelling s model however if the firms employ identical exogeneously specified prices hotelling s conclusions hold subsequent work by smithies 14 hartwick and hartwick 7 and eaton 3 claimed to show that a nash equi librium in f o b prices and locations can exist in markets with a uniform distribu tion of consumers each of whom have identical elastic demand functions for the two and three firm problems the work of d aspremont et al casts doubt on these conclusions without the adoption of restrictive conditions our work contrasts with these works and related research which has dealt with linear markets with uniform distributions of customers and with identical firms our work will involve markets that are subsets of the plane having nonuniform distributions of customers our firms will be allowed to be different that is have differences in production and transport costs however the fundamental difference in our approach is that our firms will set discriminatory prices and not price f o b in many ways our work will represent the discriminatory pricing

rural versus urban preferences for renewable energy developments development of renewable energy resources such as wind farms and hydro electric schemes are being promoted as a new method of expanding and diversifying employment in rural areas however such energy projects are associated with a range of environmental impacts which might be detrimental to other economic activities such as those based on nature tourism the authors use a choice experiment to quantify peoples preferences over environmental and employment impacts that may result from the deployment of renewable energy projects in rural areas of scotland focussing in particular on any differences between the preferences of urban and rural dwellers and on heterogeneity within these groups rural and urban households are shown to have different welfare gains which are dependent on the type of renewable energy technology and on the scale of project under consideration