efficient methods of measuring welfare change and compensated income in terms of ordinary demand functions a utility maximizing consumer with a completely known system of ordinary demand functions q h p c is considered let p qo and p q be two arbitrary equilibrium situations the problem is to evaluate in which of the situations the utility is higher without knowing the utility function revealed preference theory tells that the ordinary demand functions which are in principle observable contain enough information to solve the problem remaining difficulties are therefore mainly computational we present how the compensated income c i c p qo and the compensated demand h p cl1 are calculated with arbitrary accuracy using only the ordinary demand system our two efficient algorithms also have interesting interpretations in terms of index numbers and consumer surplus measures

who do we tip and why an empirical investigation an important question about social norms is whether they are created to increase welfare this is addressed by examining the characteristics of tipped and non tipped occupations tipping prevalence is negatively correlated with worker s income and consumer s monitoring ability and positively with consumer s income and closeness between the worker and the consumer the results refute a common belief that tipping exists to improve economic efficiency by lowering monitoring costs tipping however is more prevalent when consumers feel empathy and compassion for workers and want to show gratitude for good service suggesting that tipping might increase welfare if welfare includes psychological utility

the welfare effects of fuel conservation policies in a dual fuel car market evidence from india we estimate a model of vehicle choice and kilometers driven to analyze the long run impacts of fuel conservation policies in the indian car market we simulate the effects of petrol and diesel fuel taxes and a diesel car tax taking into account their interactions with the pre existing petrol fuel tax and car sales taxes at levels sufficient to reduce total fuel consumption by 7 the increased diesel and petrol fuel taxes both yield deadweight losses net of externalities of about 4 2010 rs l however at levels sufficient to reduce total fuel consumption by 2 the increased petrol fuel tax results in a deadweight loss per liter of fuel conserved that is greater than that caused by the diesel fuel tax this reflects both the high pre existing tax on petrol fuel and the high own price elasticities of fuel demand in india a tax on diesel cars that results in the same diesel market share as the large diesel fuel tax actually has a negative deadweight loss per liter of fuel conserved the welfare effects of all three policy instruments are positive once the external benefits of reducing fuel consumption are added to the excess burden of taxation

applied general equilibrium models of taxation and international trade an introduction and survey we wish to acknowledge the help of three referees and of john pencavel on several earlier drafts as well as the assistance of the modelers whose work is referred to in the paper they corrected our lack of understanding of their work and provided many other helpful comments excellent research and bibliographical assistance have been provided by debbie fretz radwan shaban and janet stotsky helpful comments have been made by charles ballard michael boskin lans bovenberg sylvester damus harvey galper glenn harrison gordon lenjosek jack mutti serena ng t n srinivasan charles stuart and eric toder the authors also acknowledgefinancial support from the national bureau of economic research the national science foundation international business machines and the social sciences and humanities research council ottawa canada

a simple and efficient method for estimating the magnitude and precision of welfare changes in this article we propose a simple and efficient method of estimating welfare measures in an n equation system we also estimate the variance of these measures the accuracy and convergence properties of our approach are studied the algorithm converges quadratically this is a distinct improvement over the vartia algorithm which converges linearly we demonstrate the method by evaluating the welfare consequences of price changes in the provision of health care the gauss code which is very short is included

alternative models of spatial competition the concept of a spatial price equilibrium underlies most studies of spatial movement and competition however this concept is based upon a notion of perfectly competitive markets that is often unrealistic for many markets such as the markets for oil and coal and ignores the existence of local spatial monopolies this paper presents alternative economic models of spatial competition and shows how all of these models can be solved with essentially the same solution algorithm specifically after reformulating the classical spatial price equilibrium model and two extensions of takayama and judge s monopoly model we state and analyze a cournot nash model and discuss solution algorithms we then generalize these models and algorithms to multiple commodities and networks with transshipment nodes we conclude with a brief discussion of possible extensions of this class of models and associated algorithms

retrospectives x efficiency in a 1966 article in the american economic review harvey leibenstein introduced the concept of x efficiency the gap between ideal allocative efficiency and actually existing efficiency leibenstein insisted that absent strong competitive pressure firms are unlikely to use their resources efficiently and he suggested that x efficiency is pervasive leibenstein of course was attacking a fundamental economic assumption that firms minimize costs the x efficiency article created a firestorm of criticism at the forefront of leibenstein s powerful critics was george stigler who was very protective of classical price theory in terms of rhetorical success stigler s combination of brilliance and bluster mostly carried the day while leibenstein s response to stigler was well reasoned it never resonated with many economists and leibenstein remains undeservedly underappreciated leibenstein s challenge is as relevant today as it ever was

welfare analysis of tax reforms using household data abstract this paper discusses a methodology for calculating the distribution of gains and losses from a policy change using data for a large sample of households estimates are based on the equivalent income function which is money metric utility defined over observable variables this enables calculations to be standardised and a computer program to compute the statistics presented in the paper is available for a general demand system equivalent income is related to measures of deadweight loss and standard errors are computed for each of the welfare measures an application to u k data for 5 895 households is given which simulates a reform that involves eliminating housing subsidies

measuring the inefficiences of tax systems abstract the properties of the procedure for measuring inefficiency developed by debreu 1951 1954 are summarised and the advantages of such an input based approach in analysing taxation discussed exact expressions for the debreu measure of deadweight loss are derived and the measure proposed by kay 1980 shown to be a special case the approach is pursued to construct and interpret a measure of the overall welfare loss from taxation which decomposes conveniently into efficiency and distributional components in one special case the corresponding index of total effectiveness is the product of debreu s coefficient of resource utilisation and an atkinson equality index

policy reform shadow prices and market prices how should public projects and policy reforms be assessed when market prices give misleading signals revenues and costs at market prices then give distorted measures of social gains and losses and our appraisal should use social opportunity costs or shadow prices we show how shadow prices may be integrated into an analysis of policy reform demonstrate the critical dependence of these prices on government policy and analyse their relations with market prices the model allows for a wide range of sources of impairment of price signals we also discuss key issues in the analysis of price reform and privatisation

economic materials product chain models current status further development and an illustrative example abstract economic materials product m p chain models concentrate on modelling systems of competing final products rendering the same economic service an example of such a product would be window frames made out of different materials such as aluminium wood or plastic existing economic m p chain models make highly simplifying assumptions foreign trade for example is not taken into consideration and final products are seen as perfect substitutes for each other therefore existing approaches do not provide an adequate basis for an integrated economic ecological analysis of complex product systems it is the objective of this paper to discuss the current status of m p chain modelling and to show possibilities for further development it will be argued that the takayama judge price equilibrium activity model presents a good basis for m p chain modelling this quadratic programming qp approach permits the development of dynamic multi stages multi products models a transformation of the qp approach into linear complementarity programming lcp format leads to a flexible and high capacity tool for product system analysis the capability of the proposed approach is shown by an illustrative example the adapted real world m p chain of window frame production in germany

three sides of harberger triangles prevailing economic wisdom is highly critical of injudicious tax policies or government regulations uncorrected externalities unchecked monopolistic practices and various other market failures when economists are challenged to quantify the economic costs of associated price distortions it is standard practice and has been since the 1960s to use a small number of assumptions and selected elasticities to estimate areas of the relevant harberger triangles this simple and straightforward exercise has numerous applications and the virtue of producing answers rather than conjectures harberger triangles come in many shapes and sizes figure 1 offers an illustration of such a triangle for the simple case of an excise tax point a of figure 1 at which the demand and supply schedules intersect denotes market equilibrium in the absence of the tax with quantity q1 transacted at price p1 introduction of an excise tax at rate t payable by firms selling the commodity shifts the supply schedule upward by t at the new market equilibrium firms sell q2 units of the commodity at a market price of p2 receiving after tax p3 a p2 0 t market equilibrium at point a in figure 1 has the feature that marginal consumption benefits equal marginal production costs the excise tax drives a wedge between marginal benefits and marginal costs at consumption level q2 consumers are willing to pay any amount up to p2 for additional units of the good and suppliers would readily provide additional units of the good for any price of p3 or greater but these additional transactions do not take place due to the effect of the tax wedge the loss associated

materials product chains theory and an application to zinc and pvc gutters a framework is presented for the analysis of economic and environmental impacts of policies applied to materials product mp chains this is based on materials flows product flows costs prices and optimal management of an mp chain the main differences compared with other studies focusing on materials flows is that here the link between products or services and materials is explicitly dealt with the framework is developed on the basis of materials balance conditions production functions allowing for substitution and recycling of both materials and products after presenting theoretical mp chain models and analytical results an application to the problem of choosing between zinc and pvc gutters is discussed here optimal mp chain management decisions are presented for various policy and strategy scenarios

an empirical analysis of dematerialisation application to metal policies in the netherlands abstract this paper presents a first empirical step in filling the gap between physical and economic models by combining a material flow model and an applied general equilibrium age model the goal of this paper is threefold firstly a new methodology is discussed for the integration of material and economic flow models secondly the new methodology is tested for its empirical applicability by simulation of material policies finally the analysis leads to the identification of major steps for filling the existing gap between physical and economic models further fiscal material policies are imposed to reduce the use of specific materials the material levy and the accompanying labour tax reduction shift the tax burden from labour to the use of materials the empirical illustration shows that the physical and economic flows can be made mutually compatible and that the combined model can be used for empirical analysis of material policies from this analysis of material policies in an economic model it may be concluded that the combination of an age model and a material flow model may produce an appropriate tool for analysing environmental sectoral and distributional effects of dematerialisation policies

material flows and economic models an analytical comparison of sfa lca and partial equilibrium models abstract the growing concern for environmental problems in the current economy has spurred the study of the way materials and substances flow through the economy resulting in many different types of analysis since all of these have their merits and shortcomings much of the present theoretical research seems to be focusing on combining the best aspects of each model type into an integrated model the aim of this paper is to make a first step in bridging the gap between the various types of analysis of material flows in the economy by discussing the main differences and similarities of three often employed model types substance flow analysis life cycle assessment and partial economic equilibrium analysis instead of submitting each model to a lengthy theoretical discussion we apply them to a single hypothetical example of a pollution problem by doing so we are able to evaluate the differences and similarities of the methods and results of the model in a practical way it appears that the results of the three models are complementary rather than contradictory each of them puts an emphasis on different aspects of the real world a sequential application of a number of limited models may therefore be an approach that provides more useful information than the tedious construction and application of an encompassing model that integrates these models

incentives and service quality in the restaurant industry the tipping service puzzle tipping is a significant economic activity tips in the us food industry alone amount to about 42 billion annually that was claimed to improve service quality and increase economic efficiency because it gives incentives to provide excellent service and therefore allows to avoid costly monitoring of workers the article suggests that this common wisdom might be wrong a simple model shows formally that tips can improve service only if they are sensitive enough to service quality empirical evidence suggests that tips are hardly affected by service quality nevertheless rankings of service quality by customers are very high the co existence of these two findings is denoted the tipping service puzzle and several possible explanations for it are offered

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

an estimate of resource expenditures on transfer activity in the united states this paper details resource expenditures on nonexchange noncharity transfer activity in the united states in 1985 expenditures designed to facilitate and inhibit nonexchange transfers executed privately or through the state are reported the numbers indicate that individuals plausibly invested nearly a trillion dollars in transfer activity that year nominal gnp in 1985 was just over 4 trillion which includes numerous transfer related resource investments that arguably should be subtracted out transfer activity thus apparently constitutes a much larger fraction of all economic activity conducted in the united states than previously recognized

unemployment and other measures of labor market inefficiency a comparison of u k and u s labor markets 1931 96 unemployment is probably the most widely feared phenomenon of our times it represents an enormous waste of human resources reflects an important degree of inefficiency in economic systems and causes a disturbing degree of social distress organisation for economic co operation and development oecd 1994 pp 4 6 i introduction unemployment is undoubtedly one of the most researched areas of economics determinants of the number of unemployed and duration of unemployment the role of unemployment on the depreciation of human capital and on general life satisfaction the interrelationship of unemployment and inflation and unemployment and output okun s law and policies to reduce or even eliminate unemployment are just a few of the areas of research on unemployment the underlying assumption in many studies on unemployment is that there is a very close correspondence between unemployment and labor market inefficiency as witnessed in the quote by the oecd just given although rarely if ever stated there is also the assumption that a given unemployment rate indicates similar levels of inefficiency either across time and or regions or countries unfortunately and somewhat surprisingly this assumption has not been tested thus far 1 given the importance of comparisons of unemployment on the direction of macroeconomic policy of governments it is very important to determine whether unemployment is indeed a good proxy for labor market inefficiency the goal of the article therefore is to examine this issue thus we pose the following key questions 1 to what degree do unemployment rates reflect labor market efficiencies 2 if the goal is to measure relative labor market inefficiency is it meaningful to compare unemployment rates over time and 3 to what degree do differences in unemployment rates across countries reflect differences in labor market inefficiencies basic economic theory shows that inefficiency in any market depends not only on the wedge between supply and demand but also on the elasticities of demand and supply the calculation of so called harberger triangles harberger 1954 of deadweight loss dwl which has a long history in the industrial organization and public finance literatures indicates that for a given wedge between supply and demand the dwl can be very different depending on the elasticities of supply and demand interestingly however studies examining the costs of unemployment do not focus on this basic view of welfare loss studies such as gordon 1973 ahsenfelter 1980 hurd 1980 clark and oswald 1994 murphy and topel 1997 and leslie and blackaby 1999 among others examine the costs of unemployment from an individual perspective but do not measure inefficiency from a market perspective which is the focus of the harberger triangles except for a publication by fortin and bernier 1988 2 we know of no other application of calculating harberger triangles to determine the level of inefficiency in the labor market therefore this article uses labor market data from 1931 to 1996 in the united states and united kingdom to calculate the dwl of unemployment and then compares the estimates of dwl to the unemployment rate to determine how closely related inefficiency and unemployment are 3 the following section investigates the theoretical relationships between unemployment labor supply and demand elasticities and dwl from this discussion we propose two alternative measures of inefficiency the first is the unemployment loss index dwl divided by gross domestic product gdp which indicates how large labor market inefficiency is relative to total output in the economy the second measure is dwl per unemployed person a measure of the potential average gains to employing an unemployed individual section iii outlines the data and methodology used to estimate the elasticities of labor supply and labor demand over time in the united states and united kingdom allowing for changes in the elasticities over time

evaluation of deadweight spending in regional enterprise financing tokila a and haapanen m evaluation of deadweight spending in regional enterprise financing regional studies the problem of deadweight spending has been previously studied using diverse methods however regional variations in deadweight spending have not yet been considered an evaluation of regional business subsidies in finland during 2000 2003 is conducted the analysis reveals regional differences in deadweight spending in proportional and particularly in monetary terms deadweight spending is dependent on many firm project and regional level factors which also largely account for regional differences however there seems to be some regional variation in deadweight spending that originates from differences in the subsidy processes among regions tokila a et haapanen m evaluer les investissements non productifs dans l aide regionale a la creation d entreprise regional studies dans le passe la question des investissements non productifs a ete etudiee a partir de diverses methodes cepend

measuring consumer surplus with unknown hicksian demands the objective of this paper to introduce the slutsky demand curve as a tool in welfare analysis it is shown that the compensating or equivalent variation can in most cases be measured to within a fraction of a percent of their true value without any numerical integration techniques two well known examples in the literature are explored a theoretical measure of the accuracy of the slutsky based measure relative to the marshallian measure is developed the approach is locally path independent and can be used to measure the money value of a ration finally it application to models of labour supply is explored an an error in the literature is corrected this abstract was borrowed from another version of this item

the new economics of regulation ten years after the new economics of regulation is an application of the principal agent methodology to the contractual relationship between regulators and regulated firms after a critique of the traditional paradigms of regulation from the point of view of information economics a canonical model of regulation under asymmetric information is developed a survey of the main results obtained in the new economics of regulation is then provided in particular concerning the implementation of optimal contracts by a menu of linear contracts the dichotomy between pricing and cost reimbursement rules the auctioning of incentive contracts the dynamics of contracting under limited commitment and the hierarchical problems in regulation empirical implications are then discussed and avenues of further research are described in the conclusion

the substantial bias from ignoring general equilibrium effects in estimating excess burden and a practical solution we show that under typical conditions the simple excess burden triangle formula substantially underestimates the excess burden of commodity taxes in some cases by a factor of 10 or more this formula performs poorly because it ignores general equilibrium interactions most important interactions between the taxed commodity and the labor market many prior studies have shown that general equilibrium interactions affect excess burden but have not appreciated the bias associated with ignoring these interactions or the quantitative importance of this bias we derive an implementable alternative to the simple formula this alternative formula captures interactions that the simple formula omits as a result it is both unbiased and usually more accurate

a contribution to the theory of welfare accounting a kind of unified theory is proposed as a dynamic generalization of the standard consumer surplus methodology for evaluating welfare changes the unified theory allows rigorous dynamic welfare comparisons to be inferred between any two economic situations from just knowing current incomes and observing a short run market demand schedule essentially the change in present discounted future utility is exactly captured by the formula difference in current income plus consumer surplus this well known formula is thereby shown to cover a far wider class of welfare comparisons than is customarily treated in the textbook static case

economic insights required for using lifecycle analysis for policy decisions we develop an analytic and numerical model that integrates land food and fuel markets and is linked with a sectoral emissions model to examine how the amount of biofuel in the economy impacts the lifecycle emissions of a biofuel under different policies our central finding is that the change in ghg emissions due to a unit expansion in biofuel will vary dramatically in the amount of biofuel in the economy and with the policy driving the expansion the emissions from a unit expansion in corn ethanol due to a blend mandate fall from 12 gco2e mj to 3 gco2e mj as the quantity of ethanol in the economy increases from 6 to 15 billion gallons for an input subsidy emissions due to a unit of ethanol increase from 15 gco2e mj to 26 gco2e mj over the same increase in ethanol we discuss the implications of these results for lifecycle analysis

economics and identity this paper considers how identity a person s sense of self affects economic outcomes we incorporate the psychology and sociology of identity into an economic model of behavior in the utility function we propose identity is associated with different social categories and how people in these categories should behave we then construct a simple game theoretic model showing how identity can affect individual interactions the paper adapts these models to gender discrimination in the workplace the economics of poverty and social exclusion and the household division of labor in each case the inclusion of identity substantively changes conclusions of previous economic analysis

minimum wages and tipped servers tips allow restaurants to pay servers lower wages as more servers are hired each serves fewer meals and earns less in tips as a result restaurants must pay a higher wage this gives them monopsony power over wages over some range a higher minimum wage should increase employment empirically we found the full reverse c monopsony pattern of employment for restaurants with employment first going up and then down as the minimum wage is increased

are smallholder farmers better or worse off from an increase in the international price of cereals citation nakelse t dalton t j hendricks n p hodjo m 2018 are smallholder farmers better or worse off from an increase in the international price of cereals food policy 79 213 223 https doi org 10 1016 j foodpol 2018 07 006

income misattribution under formula apportionment abstract alternatives to the current system of separate tax accounting such as the proposed common consolidated corporate tax base in europe would apportion a firm s worldwide profits using formulas based on the location of employment capital or sales this paper offers a new method of evaluating the accuracy of these apportionment rules and the ownership distortions they create evidence from european company accounts indicates that apportionment formulas significantly misattribute income since employment and other factors on which they are based do a very poor job of explaining a firm s profits for example the magnitude of property employment and sales explains less than 22 of the variation in profits between firms and the prediction estimates from using such a formula exceed half of predicted profits 64 of the time and exceed twice predicted income 11 of the time as a result the use of formulas rewards or punishes international mergers and divestitures by reallocating taxable income between operations in jurisdictions with differing tax rates the associated ownership distortion is minimized by choosing factor weights to minimize weighted squared prediction errors for which based on the european evidence labor inputs should play little if any role in allocation formulas but even a distortion minimizing formula creates large incentives for inefficient ownership reallocation due to the enormous variation in profitability that is unexplained by formulary factors implying that significant resource allocation costs would accompany european adoption of formulary apportionment methods

dynamic analysis of materials product chains an application to window frames abstract environmental pressure associated with a specific economic service can originate from several stages in the process of production use and disposal of products rendering that particular service when alternative products are available to fulfil such a service an interesting evaluation problem results because generally such alternatives will differ in terms of materials composition this means that different or even unique materials flows and environmental stress categories will be associated with each of them this type of evaluation problem is studied here using a materials product chain framework in which links between materials and product flows and between decision market and physical processes can be considered the term chain refers to a sequence of activities possibly including extraction production consumption materials recycling and re use of products and treatment incineration and dumping of waste chain management can then be considered as an overall policy strategy that takes explicit account of the sequential economic and physical linkages between these various activities a dynamic simulation model is developed for studying the materials product chain associated with the use of window frames in houses this provides an interesting example of a durable good the use of which has important long run consequences for material flows a number of environmental and economic indicators are considered in the modelling exercise so that a comparison and evaluation of policies and scenarios from a broad integrative perspective is possible among other things this allows for a ranking of instruments

social norms and emission tax multiple equilibria in adopting pollution abatement device the effect of social norm is addressed in an adoption game where an emission tax is used to motivate oligopolistic firms to adopt a pollution abatement device we ask if the intrinsic motivation from social norm alone can motivate firms to participate in adoption the multiple equilibria in the adoption game indicates two possibilities this intrinsic motivation may or may not enhance adoption the existing literature on equilibrium selection further suggests that the most likely outcome is that it cannot enhance adoption next by keeping the assumption of symmetry we show that if cooperation is an option for firms then the presence of two coordination effects social norm on adoption and cooperation benefits on output will result in the existence of asymmetric adoptions

do people tip because of psychological or strategic motivations an empirical analysis of restaurant tipping one of the most interesting and central questions about tipping is why people tip the two major potential reasons are strategic behaviour aimed to ensure good future service and social psychological motivations data on tipping behaviour suggests that there is no positive effect of patronage frequency on the sensitivity of tips to service quality this implies that people tip only because of social and psychological motivations and not because of strategic reasons and future service considerations

the value allocation of an economy with differential information we analyze the shapley value allocation of an economy with differential information since the intent of the shapley value is to measure the sum of the expected marginal contributions made by an agent to any coalition that he she belongs to the value allocation of an economy with differential information provides an interesting way to measure the information advantage of an agent this feature of the shapley value allocation is not necessarily shared by the rational expectation equilibrium thus we analyze the informational structure of an economy with differential information from a different and new viewpoint

do people tip strategically to improve future service theory and evidence a central question about tipping is whether people tip strategically to improve future service or only because tipping is a social norm i present a theoretical model that incorporates psychological utility associated with tipping because it is a social norm and allows tipping to be motivated also by future service considerations the model predicts that if future service is a reason for tipping the sensitivity of tips to service quality should be higher for repeating customers than for non repeating ones surveys of 597 restaurant customers are analysed and suggest that future service is not a reason for tipping une question centrale a propos des pourboires est la suivante est ce que les gens donnent des pourboires strategiquement pour ameliorer la qualite du service ou est ce que le pourboire est simplement une norme sociale l auteur presente un modele theorique qui incorpore a la fois l utilite psychologique associee au pourboire parce que c est une norme sociale et prend en compte que le pourboire peut etre motive aussi par des l intention d ameliorer la qualite future du service le modele predit que si la qualite future du service est la raison pour donner des pourboires la sensibilite des pourboires a la qualite du service devrait etre plus grande pour les clients reguliers que pour les clients occasionnels des enquetes aupres de 597 clients de restaurants suggerent que la qualite future du service n est pas la raison pour laquelle on donne des pourboires

the measurement of deadweight loss revisited modities such as various consumer goods and labor m fixed factors such as land natural resources and various types of fixed capital and a government which taxes commodities and fixed factors in order to finance various govern ment expenditures it is well known2 that if the government can raise its required revenue by taxing the fixed factors alone then the resulting allocation of resources is pareto optimal no single household s utility or real income can be increased without decreasing the utility of some other household suppose we are at an initial equilibrium where government revenue is being raised by taxing the fixed factors alone then the resulting equilibrium can be rationalized by maximizing a certain weighted sum of utility functions subject to various feasibility constraints now think of the government replacing the taxes on fixed factors with distortionary commodity taxes in section 3 we calculate the second order directional derivative of the above weighted sum of utility functions with respect to any feasible direction of tax change evaluated at the initial equilibrium which is pareto optimal of course the first order directional derivatives of the weighted sum of utility functions with respect to feasible directions of tax change are zero evaluated at this initial equilibrium we obtain a measure of economic loss due to tax distortions which is virtually identical to that of boiteux 3 p 113 and which bears a resemblance to the dead loss of hotelling 22 p 254 the consumer s surplus measures of hicks 19 20 pp 330 3 and the deadweight loss measure of harberger 16 p 61 17 p 788 in section 4 we calculate a measure of welfare loss based on debreu s 4 5 coefficient of resource utilization which is a modification of a measure of loss due to allais 1 2 and we show that under certain conditions the hotelling

nonparametric estimation of exact consumers surplus and deadweight loss we apply nonparametric regression models to estimation of demand curves of the type most often used in applied research from the demand curve estimators we derive estimates of exact consumers surplus and deadweight loss which are the most widely used welfare and economic efficiency measures in areas of economics such as public finance we also develop tests of the symmetry and downward sloping properties of compensated demand we work out asymptotic normal sampling theory for kernel and series nonparametric estimators as well as for the parametric case the paper includes an application to gasoline demand empirical questions of interest here are the shape of the demand curve and the average magnitude of welfare loss from a tax on gasoline in this application we compare parametric and nonparametric estimates of the demand curve calculate exact and approximate measures of consumers surplus and deadweight loss and give standard error estimates we also analyze the sensitivity of the welfare measures to components of nonparametric regression estimators such as the number of terms in a series approximation

china s electricity market oriented reform from an absolute to a relative monopoly abstract the market oriented reform in electricity industry has become a global trend since 1980s although china s electricity industry has been reformed since 1978 the substantial reform has not been conducted until 1985 before 1985 china s power industry had been absolutely monopolized by the central state owned companies the absolute monopoly has been broken since 1985 when the chinese government opened doors for non central state owned investment entities and foreign investors in power supplies in order to solve the chronic power shortage in 2002 the comprehensive electricity reform plan entitled scheme of the reform for power industry was enacted however implementation of this plan was delayed due to electricity supply shortages even worse a new kind of monopoly has been developed under the background the state advances the private sector retreats in late years in some sense the former absolute monopoly has transformed the current relative monopoly we contend that the relative monopoly has reversed the market oriented reform in china s electric industry if the relative monopoly remains unchanged it will be harmful to public welfare

where does voucher funding go how large scale subsidy programs affect private school revenue enrollment and prices using a new dataset constructed from nonprofit tax returns this paper explores how vouchers and other large scale programs subsidizing private school attendance have affected the fiscal outcomes of private schools and the affordability of a private education we find that subsidy programs created a large transfer of public funding to private schools suggesting that every dollar of funding increased revenue by a dollar or more turning to the incidence of subsidies and the impact of subsidies on enrollment our findings depend on the type of program introduced programs that restrict eligibility to certain groups of students create large enrollment gains but no change in price while programs that offer unrestricted subsidies lead to price increases but no change in enrollment we calculate elasticities of demand and supply for private schools and discuss welfare effects