is free trade in the interest of exporting countries when there is ecological dumping abstract given conditions of oligopolistic competition the coordinated ban of direct export promoting policies e g in the eu or by gatt increases the income of exporting countries however in the presence of environmental distortions free trade can lead to ecological dumping in exporting countries the question arises if free trade is still in the interest of exporting countries we show that welfare maximizing governments of exporting countries prefer free trade even if countries subsidize their local industries indirectly via ecological dumping the existence of further national policy instruments does not make free trade agreements obsolete

racial discrimination in the labor market theory and empirics we review theories of race discrimination in the labor market taste based models can generate wage and unemployment duration differentials when combined with either random or directed search even when strong prejudice is not widespread but no existing model explains the unemployment rate differential models of statistical discrimination based on differential observability of productivity across races can explain the pattern and magnitudes of wage differentials but do not address employment and unemployment at their current state of development models of statistical discrimination based on rational stereotypes have little empirical content it is plausible that models combining elements of the search models with statistical discrimination could fit the data we suggest possible avenues to be pursued and comment briefly on the implication of existing theory for public policy jel j15 j31 j64 j71

nash equilibria in models of fiscal competition abstract this paper analyzes nash equilibria in a simple model of an economy with jurisdictions engaging in fiscal competition small number nash equilibria in which tax rates are the strategic variables are shown not to coincide with nash equilibria in which public expenditure levels are the strategic variables

return and dynamics the path of labor migration when workers differ in their skills and information is asymmetric an implementation of the theory of labor migration under asymmetric information shows that return migration arises from the reinstatement of informational symmetry which induces low skill workers who are no longer pooled with high skill workers to return when workers in an occupation constitute more than two skill levels say four without loss of generality the following patterns emerge migration is sequential that is it proceeds in waves each wave breaks into workers who return and workers who stay within waves the returning migrants are the low skill workers the average skill level of migrants is rising in the order of their wave excerpt

equilibrium pollution taxes in open economies with imperfect competition abstract this paper argues that imperfect competition in global markets creates a strategic interaction between governments that can lead to the inefficient distortion of pollution taxes this distortion can be decomposed into a rent capture effect and a pollution shifting effect the rent capture effect lowers equilibrium taxes as each country attempts to gain a competitive advantage over its trading partner and thereby capture foreign rent through net exports the pollution shifting effect raises equilibrium taxes as each country attempts to transfer production and its associated pollution to the other country this effect vanishes if pollution is perfectly transboundary because shifted pollution causes as much damage to the domestic environment as does domestic pollution the net effect on symmetric equilibrium taxes is negative except in the special case of perfect competition with no transboundary pollution in this case the two effects are mutually offsetting and the nash equilibrium is efficient when pollution is at least partially transboundary there also arises the usual transboundary externality and this reinforces the negative net strategic effect giving rise to equilibrium taxes that are lower than what is globally efficient

a theory of interregional tax competition a general equilibrium model is constructed to study tax competition where local governments compete for capital by holding down property tax rates and public expenditure levels an exact definition of tax competition is provided and both the existence and nonexistence of tax competition are shown to be theoretically possible it is argued however that tax competition must occur under empirically reasonable conditions inefficiency in public production is also explicitly modeled the amount of capital used to produce a given level of public service output is shown to be greater than that which is required to minimize costs evaluated at the prices facing private firms

incorporating minimum subsistence consumption into international comparisons of real income abstract cross country demand data are often consistent with the existence of a representative consumer with homothetic preferences while homotheticity allows the construction of tight bounds to quantity indexes and their variance it contradicts the biological reality that humans require minimum consumption of food clothing and shelter this paper presents an approach for nonparametrically estimating bounds to utility from above subsistence consumption oecd data are used to show that homotheticity markedly compresses the real income distribution relative to what is found under the more general class of affine homothetic preferences and this has major consequences for estimates of convergence

an analysis of substitution bias in measuring inflation 1959 851 we analyze the substitution bias in laspeyres type price indexes such as the cpi using 1959 1985 nipa consumption data for 101 commodities we employ two methodological approaches to calculation of the bias first we construct the tightest theoretical bounds on the col by applying nonparametric methods using algorithms developed by afriat and by varian second following diewert we construct superlative price index formulas namely tomqvist and fisher s ideal indexes under a chain as well as a fixed base specification homothetic preferences are found to be consistent with the data and sensitivity tests indicate that this result is not vacuous if the hypothesis of homotheticity is maintained the col bias has upper and lower limits of 0 22 and 0 14 percent per year respectively using the superlative indexes as the measure of the col the bias is about 0 18 percent per year for the period 1959 85 this estimate is somewhat larger than found in earlier studies our use of more disaggregated data is found to be responsible for part of the difference with the size of the estimated bias directly related to the extent of the aggregation

optimal migration a world perspective we ask what level of migration would maximize world welfare welfare is assumed to be a weighted average of the utilities of the world s various citizens but the weights are also country specific using a calibrated one sector model we find that unless the weights are heavily biased toward the natives of rich countries the extent of migration that would be optimal far exceeds the levels observed today the claim remains true in a two sector extension of the model all versions of the model assume that migration is the only redistributive tool

rehabilitation decisions in rental housing an empirical analysis abstract housing policy makers show increased interest in encouraging rehabilitation of the existing housing stock but little is known about what factors influence the decision to invest particularly in rental housing making policy design difficult this paper presents an empirical analysis of individual landlords housing rehabilitation decisions in one housing market the analysis tests hypotheses about the impacts of detailed neighborhood structure and site characteristics on each owner s investment activity findings support the general hypothesis that economic returns to investment have a major effect on rehabilitation decisions identify some other important circumstances and suggest which among many specific policy levers should be effective

how to measure labour market effects of immigration a review abstract this paper surveys available empirical evidence on labour market effects of immigration many different approaches have been used already to try to find out whether immigration hurts the labour market opportunities of natives no doubt new approaches will follow in the future as globalization will keep the migration issue on the agenda this literature review discusses the different approaches concentrating on both the methodology and the results at the end it tries to summarize available evidence

eco dumping capital mobility and international trade a small open economy s optimal environmental policy is studied in a model with international capital mobility and local pollution the country produces traded as well as non traded goods is it in the country s interest to engage in ecological dumping by choosing generous pollution allowances for the traded good sector the answer depends decisively on the policy regime in use dumping is not optimal if the country ensures that the implicit rent on pollution is completely appropriated within the country however if the implicit factor reward on pollution leaves the country because it accrues to foreign owners of mobile capital the local welfare maximizing government tends to discriminate against the traded good sector the opposite of ecological dumping

taste change in the united kingdom 1900 1955 a search is made for violations of the axiom of revealed preference in aggregate consumption data for the united kingdom no such violations are found this is taken as evidence that tastes remained constant throughout the period under study the strength of this evidence is estimated within the context of a particular model of taste change

altruism and beyond an economic analysis of transfers and exchanges within families and groups 1 introduction 2 altruism transfers and wellbeing 3 the timing of intergenerational transfers an implication 4 an exchange implication of transfers the demonstration effect 5 transfers by migrants a strategic motive for remittances 6 exchange with recognition costs an explanation of migrants performance 7 intrafamilial transfers and exchanges forming and sustaining altruism

brain waste educated immigrants in the u s labor market the authors investigate the occupational placement of immigrants in the u s labor market using census data they find striking differences among highly educated immigrants from different countries even after they control for individuals age experience and level of education with some exceptions educated immigrants from latin american and eastern european countries are more likely to end up in unskilled jobs than immigrants from asia and industrial countries a large part of the variation can be explained by attributes of the country of origin that influence the quality of human capital such as expenditure on tertiary education and the use of english as a medium of instruction performance is adversely affected by military conflict at home which may weaken institutions that create human capital and lower the threshold quality of immigrants the selection effects of u s immigration policy also play an important role in explaining cross country variation the observed under placement of educated migrants might be alleviated if home and host countries cooperate by sharing information on labor market conditions and work toward the recognition of qualifications

interjurisdictional capital mobility fiscal externality and a corrective subsidy abstract recent studies emphasize that local property taxation may result in inefficiently small amounts of local public spending this paper shows that the inefficiency can be traced to a fiscal externality when one jurisdiction increases its taxes it causes a flow of capital to other jurisdictions that increases their tax revenues the inefficiency can be corrected with a subsidy that internalizes the externality key empirical parameters determining the magnitude of the externality are identified illustrative calculations indicate that subsidy rates on the order of 40 might be required to achieve efficiency

non parametric tests of consumer behaviour the neoclassical model of consumer behaviour postulates that a consumer s choice behaviour can be described as deriving from utility maximization subject to a budget constraint one is then naturally led to ask what this model implies about observed behaviour this question has been addressed from two quite distinct approaches the first approach originating in the work of slutsky 1915 and antonelli 1886 derives necessary and sufficient conditions involving the derivatives of the demand functions the second approach originating in the work of samuelson 1938 1947 1948 derives algebraic conditions on the demand functions implied by maximizing behaviour

the performance of immigrants in the canadian labor market in this article we examine the economic assimilation of immigrants to canada we provide new evidence on immigrants who arrived in the 1970s and document an increase in the dispersion of labor market outcomes across immigrants of different vintages over time our results confirm u s evidence of permanent differences across immigrant cohorts what distinguishes the canadian experience is small or negative rates of assimilation for most cohorts over the sample period finally we test the overidentification of the assimilation process specified in previous studies and fail to reject the usual cohort fixed effect specification

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

will affirmative action policies eliminate negative stereotypes a key question concerning affirmative action is whether the labor market gains it brings to minorities can continue without it becoming a permanent fixture in the labor market the authors argue that this depends on how the policy affects employers beliefs about the productivity of minority workers they study the joint determination of employer beliefs and worker productivity in a model of statistical discrimination in job assignments the authors prove that even when identifiable groups are equally endowed ex ante affirmative action can bring about a situation in which employers correctly perceive the groups to be unequally productive ex post copyright 1993 by american economic association

globalization brain drain and development this paper reviews four decades of economics research on the brain drain with a focus on recent contributions and on development issues we first assess the magnitude intensity and determinants of the brain drain showing that brain drain or high skill migration is becoming a dominant pattern of international migration and a major aspect of globalization we then use a stylized growth model to analyze the various channels through which a brain drain affects the sending countries and review the evidence on these channels the recent empirical literature shows that high skill emigration need not deplete a country s human capital stock and can generate positive network externalities three case studies are also considered the african medical brain drain the exodus of european scientists to the united states and the role of the indian diaspora in the development of india s information technology sector we conclude with a discussion of the implications of the analysis for education immigration and international taxation policies in a global context

the effect of low skilled immigration on u s prices evidence from cpi data i exploit the large variation across u s cities and through time in the relative size of the low skilled immigrant population to estimate the causal effect of immigration on prices of nontraded goods and services using an instrumental variables strategy i find that at current immigration levels a 10 percent increase in the share of low skilled immigrants in the labor force decreases the price of immigrant intensive services such as housekeeping and gardening by 2 percent wage equations suggest that lower wages are a likely channel through which these effects take place however wage effects are significantly larger for low skilled immigrants than for low skilled natives implying that the two are imperfect substitutes

migration and asymmetric information comment a comment on an article by viem kwok and hayne leland concerning the relationship between asymmetric information and the brain drain of skilled labor from developing countries is presented a reply by kwok and leland p 535 is also included annotation

principles of analysis of internal structures of aggregate demands demand estimation problem arises each time when there is need for forecasting of the sales volume optimal price settlement for profit maximization or for empirical studies of the market for demand because there is a relationship between price and quantity demanded it is important to understand the impact of pricing on sales by estimating the demand curve for the product the current paper introduces new method of analysis of demand internal structure and compound nature depended on the contribution of various groups of customers direct and inverse problem of estimation of elementary and aggregate demands parameters are defined aggregate demand structure is represented as a multidimensional dummy variables regression model the theoretical results are verified by means of corresponding numerical example

international migration under asymmetric information international migration under asymmetric information usually differs from international migration under symmetric information and often quite dramatically so and in counterintuitive ways since in real life information is indeed asymmetric it is somewhat surprising that hitherto the study of international migration has by and large proceeded without explicit recognition of the effect of informational asymmetry in this paper we show that when at the lowest skill level migration is desirable i e if the discounted wage differential is positive for the lowest skill level the introduction of asymmetric information results in a reduction of the quality and quantity of international migration or has no effect at all when at the lowest skill level migration is not desirable the discounted differential is not positive at the lowest skill level the introduction of asymmetric information may either result in migration by all or none when under asymmetric information workers can at some cost to themselves report to foreign employers their individual skill thus dissociate themselves from the group effect then provided the cost is small either a u pattern of migration with respect to skill level emerges or migration is uniformly pursued by all though some do and some do not invest in signalling when the source consists of more than 1 poor country it is impossible to predict migration under asymmetric information from a given country without explicitly accounting for changes in the parameters of the other for example a favorable change encouraging less migration taking place in 1 country will through a distinct impact on the overall composition of migration reduce migration from the other country finally allowing employers to discover after a while the true productivity of individual migrant workers we obtain the somewhat surprising result that under a reasonable set of assumptions eventual discovery may increase the quantity and quality of migration and also increase the wage enjoyed by the low quality migrants eventual discovery serves to mitigate the impact of group averaging that deters migration by the high skill workers due to migration of some such workers the prediscovery wage of the low skill workers arises in our case sufficiently to outweigh the effect of the future wage decline due to discovery authors

pigou tiebout property taxation and the underprovision of local public goods abstract pigou s proposition that the use of distorting taxes rather than neutral head taxes reduces public service levels is examined in this paper a simple model with a national system of competing local governments is utilized to demonstrate that the use of a distorting property tax on mobile capital decreases the level of residential public services the case where public services are an intermediate producer good is also considered

optimal property taxation in the presence of interregional capital mobility abstract a single region s optimal property tax policy is examined in a model with interregional capital mobility in this model property taxation is used to finance local public expenditures different tax rates may be imposed on property used to produce goods which are traded between regions and property used to produce nontraded goods e g residential property the key determinants of the difference between the optimal tax rates are identified and it is argued that there exists a bias towards relatively low tax rates on property used to produce traded goods the role of labor mobility is also investigated

locational choices of firms and decentralized environmental policy with various instruments abstract suppose there exists a federation with a given number of mobile firms generating waste emissions in the jurisdiction in which they locate this paper demonstrates that if jurisdictions use emission taxes or marketable emission rights to control pollution within their boundaries and distribute the revenues captured by these instruments in a socially efficient way firms locate efficiently taking their pollution externalities into account decentralized environmental policy relying on direct controls however prevents locational efficiency of mobile firms furthermore if jurisdictions are small decentralized environmental policy with emission taxes and marketable pollution rights also support an efficient environmental quality while a policy using direct controls sets too high emission standards

the economic performance of immigrants a theory of assortative matching the economic performance of u s immigrants differs substantially from that of natives in ways that pose difficulties for standard theories of migration in particular immigrants cluster geographically and are often employed together immigrant earnings differ by origin and time spent in the united states even after controlling for education and experience a large fraction of immigrants eventually returns home even to low wage countries this article offers a theory of international migration based on assortative matching under imperfect information that accounts for a broad range of these empirical regularities

on nonparametric demand analysis abstract building on the work of afriat and varian a nonparametric analysis of consumption behavior is presented inner bound and outer bound representations of preferences are obtained that are consistent with both the data and consumer theory it is shown how a priori information on demand response can be incorporated in the analysis the approach generates estimates of price and income elasticities of demand an application to u s consumption data illustrates the usefulness of the method for predicting demand behavior as well as for welfare analysis

international migration imperfect information and brain drain we consider a model of international migration where skills of workers are imperfectly observed by firms in the host country and where information asymmetries are more severe for immigrants than f

the economics of immigration this literature review concerns the impact of immigration on the economy of the host country focusing on the experience of the united states the emphasis is on the period from the 1970s to the 1990s the author shows that research earlier in this period generally concluded that the economic effects of immigration were positive but that more recent research on later migrations have generally concluded that immigration may be having an adverse effect on the earnings of native unskilled workers and be placing an increased burden on welfare programs the importance of such economic analysis for the formulation of appropriate migration policies is stressed

theory and estimation in the economics of housing demand the main purpose of this paper is to review recent theoretical and empirical developments in the economics of housing demand in particular we ask what is known concerning the permanent income elasticity of housing demand vis a vis the current or measured income elasticity what is known concerning price elasticities what is the appropriate functional form for housing demand equations what is the role of demographic variables what is known concerning dynamic aspects of housing demand what appear to be the major sources of bias in existing estimates of demand equations

eight questions about brain drain high skilled emigration is an emotive issue that in popular discourse is often referred to as brain drain conjuring images of extremely negative impacts on developing countries recent discussions of brain gain diaspora effects and other advantages of migration have been used to argue against this but much of the discussion has been absent of evidence this paper builds upon a new wave of empirical research to answer eight key questions underlying much of the brain drain debate 1 what is brain drain 2 why should economists care about it 3 is brain drain increasing 4 is there a positive relationship between skilled and unskilled migration 5 what makes brain drain more likely 6 does brain gain exist 7 do high skilled workers remit invest and share knowledge back home and 8 what do we know about the fiscal and production externalities of brain drain

a meta analytic assessment of the effect of immigration on wages in our increasingly interconnected and open world international migration is becoming an important socio economic phenomenon for many countries since the early 1980s many studies have been undertaken of the impact of immigration on host labour markets borjas 2003 noted that the estimated effect of immigration on the wage of native workers varies widely from study to study and sometimes even within the same study in addition these effects cluster around zero such a small effect is a rather surprising outcome given that in a closed competitive labour market an increase in labour supply may be expected to exert a downward pressure on wages we revisit this issue by applying meta analytic techniques to a set of eighteen papers which altogether generated 348 estimates of the percentage change in the wage of a native worker with respect to a one percentage point increase in the ratio of immigrants over native workers while many studies in our database employ us data estimates are also obtained from germany the netherlands france norway austria israel and australia our analysis shows that results vary across countries and are inter alia related to the type of modelling approach technical issues such as publication bias and quality of the estimates are addressed as well

nonparametric tests of utility maximization and weak separability for consumption leisure and money some of the most fundamental assumptions of economics are utility maximization and weak separability of the arguments in the represen tative consumer s utility function this paper contains results from nonparametric tests of these assumptions about consumer behavior the authors find that quarterly per capita data on consumption goods le isure and monetary assets are consistent with utility maximization further consumption goods and leisure meet necessary and sufficient conditions for weak separability additionally one grouping of relat ively liquid monetary assets meets the necessary conditions for weak separability they also test and find no evidence of homothetic prefe rences copyright 1987 by mit press

firm location and city size reduced productivity advantages as a factor in the decline of manufacturing in urban areas abstract this paper develops a model of firm location and city size that arrives at theoretical conclusions that differ from those of other authors comparative statics results suggest that changes in national wage levels and productivity levels create no determinate dis advantage for large cities relative to small ones as sites for manufacturing activity increased wage and reduced productivity premiums of large cities however result in unambiguous disadvantages statistical analysis indicates that the productivity advantages of large cities have declined in as many as eight two digit manufacturing industries that provide more than one third of metropolitan production worker employment

rationalizability learning and equilibrium in games with strategic complementarities we study a rich class of noncooperative games that includes models of oligopoly competition macroeconomic coordination failures arms races bank runs technology adoption and diffusion r d competition pretrial bargaining coordination in teams and many others for all these games the sets of pure strategy nash equilibria correlated equilibria and rationalizable strategies have identical bounds also for a class of models of dynamic adaptive choice behavior that encompasses both best response dynamics and bayesian learning the players choices lie eventually within the same bounds these bounds are shown to vary monotonically with certain exogenous parameters we study the class of noncooperative supermodular games introduced by topkis 1979 and further analyzed by vives 1985 1989 who also pointed out the importance of these games in industrial economics supermodular games are games in which each player s strategy set is partially ordered the marginal returns to increasing one s strategy rise with increases in the competitors strategies so that the game exhibits strategic complementarity 2 and if a player s strategies are multidimensional marginal returns to any one com ponent of the player s strategy rise with increases in the other components this class turns out to encompass many of the most important economic applications of noncooperative game theory in macroeconomics diamond s 1982 search model and bryant s 1983 1984 rational expectations models can be represented as supermodular games in each of these models more activity by some members of the economy raises the returns to increased levels of activity by others in oligopoly theory some models of bertrand oligopoly with differentiated products qualify as supermodu lar games in these games when a firm s competitors raise their prices the marginal profitability of the firm s own price increase rises a similar structure is present in games of new technology adoption such as those of dybvig and spatt 1983 farrell and saloner 1986 and katz and shapiro 1986 when more users hook into a communication system or more manufacturers adopt an interface standard the marginal return to others of doing the same often rises similarly in some specifications of the bank runs model introduced by diamond and dybvig 1983 when more depositors withdraw their funds from a bank it is more worthwhile for other depositors to do the same in the warrant exercise

international r d rivalry and industrial strategy this paper presents a theory of government intervention which provides an explanation for industrial strategy policies such as r d or export subsidies in imperfectly competitive international markets domestic net welfare is improved by the capture of a greater share of the output of rent earning industries although the subsidy ridden noncooperative international equilibrium is jointly suboptimal behaviour of governments and firms is modelled as a three stage subgame perfect nash equilibrium the assumption that the government is the first player in this game allows it to influence equilibrium outcomes by altering the set of credible actions open to firms

testing the stability of preferences a nonparametric approach a test for preference stability is developed that strengthens existing nonparametric procedures the test uses indifference curve convexity to restrict unobservable compensated consumption bundles adding up noninferiority and the slutsky equation are used to limit the range of these compensated consumption bundles a program is proposed that simultaneously measures the changes in consumption quantities satisfying the theoretical restrictions and the expenditure elasticities minimizing the required changes the program is applied to meat consumption data and is shown to be capable of detecting small changes in preference

the labour market impact of immigration in the first part of this paper we present a stylized model of the labour market impact of immigra tion we then discuss mechanisms through which an economy can adjust to immigration changes in factor prices output mix and production technology in the second part we explain the problems of empirically estimating how immigration affects labour market outcomes of the resident population and review some strategies to address these we then summarize some recent empirical studies for the uk and other countries we conclude with an outlook on what we believe are important avenues for future research

an examination of preferences for local public sector outputs relatively unique data on the costs of public services for local governments in victoria australia are used to estimate a system of demand equations and to test alternative specifications of the underlying preferences using a translog model symmetry conditions are rejected so the data are not consistent with constrained utility maximization a nonparametric test confirms that result conditional on symmetry tests reject homogeneity and the additivity of preferences and also the separability of personal and property services copyright 1988 by mit press

labor mobility under asymmetric information with moving and signalling costs abstract information about the true skill level of individual workers may not flow freely across labor markets or between firms and though available to the workers themselves may not be equally available to some employers consequently the level and composition of labor mobility is affected in this paper we derive some results concerning the impact of moving costs in conjunction with informational asymmetry upon the level of labor mobility the skill level of those who move and the effect upon both these variables of costly signalling