factor substitution and discrimination in labor markets the object of this paper is to provide a theoretical framework for explaining the absence of substitution of non discriminated factors for discriminated factors as a consequence of legislation designed to reduce or eliminate their pay differentials an example of such types of regulations or laws is equal pay legislation this absence of substitution has been noted in the empirical literature typical examples in this area are for example hiring of whites vis a vis blacks males vis a vis females migrants versus non migrants and hiring by castes the discriminated factors are usually paid less than their non discriminated counterparts two interesting and related questions arise in this context first why do profit maximizing but discriminating firms hire both types of factors the theory of discrimination fails to provide a satisfactory answer to this question second does an increase in payment to a discriminated factor via legislation necessarily result in a decrease in its usage given a neoclassical production function that allows for substitution two models are presented to show that such an outcome may not result and in fact the relationship may be the exact opposite that is an increase in the payment to a discriminated factor may increase its usage one can distinguish at least two approaches for incorporating the exploitation of a factor of production first one may like to treat the discriminated and non discriminated workers as identical factors of production and argue that the discriminated workers are paid less than the non discriminated workers second both factors may be treated as separate and indispensable factors of production but for institutional or other non economic reasons the discriminated factor is paid less than the value of its marginal product in this latter case the factor is exploited in the robinsonian sense the second approach has some advantages over the first economic rationality in the first approach would suggest that the firms should only hire the cheaper or the dearer factor but not both as a result of discrimination tastes however in the real world it is commonly observed that both types of factors are hired simultaneously in this approach there is the possibility of firms re switching between both types of factors therefore this paper extends the discrimination literature to show how firms may hire both factors using the second approach one can logically raise the question of substitution of non discriminated for discriminated factors as a consequence of higher rewards we show in a robinsonian type exploitation model that there is no substitution theorem

cooperative and noncooperative r d in duopoly with spillovers contrary to the usual assumption made in most oligopoly models relations among firms are seldom of a wholly cooperative or noncooperative type in many situations they compete in some fields while they cooperate in others an important example is the case of cooperative research efforts bringing fierce competitors together two types of agreement are observed first r d cooperation can take place at the so called precompetitive stage companies share basic information and efforts in the r d stage but remain rivals in the market place 1 a second type of agreement involves an extended collusion between partners creating common policies at the product level the usual justifications of this extension are the difficulties of protecting intellectual property the idea is then to allow partners who have achieved inventions together to also control together the processes and products which embody the results of their collaboration in order to recuperate jointly their r d investments 2 what could be expected from these types of agreement is a reduction in r d expenditures because of less wasteful duplication and a reduction of total production because of more reprinted from the american economic review 78 5 1133 1137 1988 center for operations research econometrics 1348 louvain la neuve belgium we are grateful to jean

temporary foreign workers and firms theory and canadian evidence abstract temporary foreign worker tfw programs have grown considerably in size when uncapped we develop a simple efficiency wage model to explain this phenomenon and examine the empirical evidence for it we also use the model to evaluate the implications of tfw programs for domestic workers in our framework firms that have been unable to find domestic workers may hire tfws at the wage previously advertised to domestic workers due to the lower outside option for tfws than domestic workers tfws will exert more effort for the same wage firms would thus prefer to hire otherwise identical tfws rather than domestic workers our model identifies an unintended consequence of a tfw program since the repercussions of a failed domestic job search are less severe if a tfw may be hired instead firms have an incentive to lower their wage offers made to domestic workers using canadian data we find that relative to domestic workers tfws work longer hours have lower rates of absenteeism and are less likely to be laid off consistent with higher effort in our model moreover for tfws from home countries with a relatively high outside option effort is lower than for tfws from other countries resume travailleurs etrangers temporaires et entreprises theorie et exemple canadien en l absence de plafonnement les programmes de travailleurs etrangers temporaires ptet se sont considerablement developpes afin d expliquer ce phenomene et d en examiner les preuves empiriques nous avons developpe un modele simple de salaire d efficience nous avons egalement utilise ce modele pour evaluer l incidence des ptet sur les travailleurs domestiques dans notre cadre d etude les entreprises peinant a trouver une main d uvre locale peuvent embaucher des travailleurs etrangers temporaires au salaire prealablement propose aux travailleurs domestiques compte tenu d options exterieures plus faibles les travailleurs etrangers temporaires deploieront davantage d efforts pour le meme salaire les entreprises prefereront donc embaucher des travailleurs etrangers par ailleurs identiques plutot que des travailleurs domestiques notre modele identifie une consequence inattendue aux ptet etant donne que les consequences d une recherche d employes domestiques infructueuse sont attenuees par l embauche de travailleurs etrangers temporaires les entreprises sont incitees a diminuer les offres salariales proposees aux travailleurs locaux en exploitant les donnees propres au canada nous avons decouvert que les travailleurs etrangers temporaires travaillaient plus d heures avaient des taux d absenteisme inferieurs et etaient moins susceptibles de se faire congedier que les travailleurs domestiques conformement au concept d effort accru developpe dans notre modele en outre pour les travailleurs etrangers temporaires originaires de pays a options exterieures relativement elevees l effort sera moindre que pour ceux provenant d autres pays

migrants in a guest worker system a utility maximizing approach this paper examines the behavior of utility maximizing migrants in a system of guest worker migration their pattern of leisure and commodity consumption at home and abroad is analysed and related

strategic amnesty and credible immigration reform why do countries that impose employer sanctions to deter the illegal entry of foreign workers nevertheless grant amnesty to illegal immigrants in this article i provide a positive theory of amnesty provision in a model where the constrained optimal immigration reform involving the joint use of employer sanctions and border interdictions is time inconsistent in particular my framework demonstrates that host countries of immigration can enhance the credibility of their immigration reforms by binding their own hands and strategically granting a socially excessive amount of amnesty to illegal workers

can falling supply explain the rising return to college for younger men a cohort based analysis although the college high school wage gap for younger u s men has doubled over the past 30 years the gap for older men has remained nearly constant in the united kingdom and canada the college high school wage gap also increased for younger relative to older men using a model with imperfect substitution between similarly educated workers in different age groups we argue that these shifts reflect changes in the relative supply of highly educated workers across age groups the driving force behind these changes is the slowdown in the rate of growth of educational attainment that began with cohorts born in the early 1950s in all three countries

unauthorized immigration and fiscal competition abstract reflecting upon recent enforcement policy activism of us states and countries within the eu towards unauthorized workers we examine the overlap of centralized federal and decentralized state or regional enforcement of immigration policies in a spatial context among other results we find that if interstate mobility is costless internal enforcement is overprovided and border enforcement and local goods are underprovided when regions take more responsibility in deciding policies this leads to higher levels of unauthorized immigration under decentralization interregional migration costs moderate such over underprovision moreover income distributive motives in the host country may shape the design of immigration policies in specific ways the basic model is extended in several ways first we study how the policies change when regions can exclude unauthorized immigrants from the consuming of regionally provided goods or services second we assume that the potential number of unauthorized immigrants is endogenous and finally we examine the effect of considering an alternative spatial configuration that includes border and interior regions

capital allocation how the us compares with other major industrialized nations data for the seven major industrialized nations spanning two decades provide evidence that capital formation as a percentage of gross domestic product differs significantly among the major industrialized nations comparatively the us ranks among the leaders in residential structures and among the lowest in commercial structures however us private sector allocation of capital to machinery and equipment appears to be in line with other major trading nations the rate of capital cost recovery appears to affect the amount of capital allocated to commercial structures but not to residential structures or machinery and equipment likewise changes in the capital cost recovery provisions under the economic recovery tax act of 1981 seem to have led to an increase in capital allocated to commercial structures and to a marginal increase in capital allocated to machinery and equipment

a search equilibrium approach to the effects of immigration on labor market outcomes we analyze the impact of the skill biased immigration inux that took place during the years 2000 2009 in the united states within a search and matching model that allows for skill heterogeneity dierential search cost between immigrants and natives capital skill complementarity and possibly endogenous skill acquisition within such a framework we nd that although the skill biased immigration raised the overall net income to natives it may have had distributional eects specically unskilled native workers gained in terms of both employment and wages skilled native workers on the other hand gained in terms of employment but may have lost in terms of wages nevertheless in one extension of the model where skilled workers and immigrants are imperfect substitutes we nd that even the skilled wage may have risen

efficient black markets abstract this paper investigates analytically the welfare effects of black market activities that firms undertake to evade taxes the desirability of a black market is linked to the attributes of the goods supplied by black market firms the analysis identifies cases where a black market reduces increases the distortionary impact of taxation on the allocation of resources across the goods that the government is attempting to tax leading to a welfare gain loss

labour market performance effects of discrimination and loss of skill we examine the impact of discrimination on labor market performance when workers are subject to a risk of losing skills during an unemployment experience within a search and matching framework we show that both natives and immigrants are affected by discrimination discrimination in one sector has positive spillovers inducing employment to increase in the other sector and the effect on labor market performance therefore depends on whether discrimination is present in only one sector or in both discrimination may induce workers to train more or less than natives after having lost their skills dependent upon in which sector there is discrimination net output tends to be most negatively affected by discrimination among high skilled workers jel j15 j31 j61 j64 j71

the effects of immigration in frictional labor markets theory and empirical evidence from eu countries immigrants are new comers in a labor market as a consequence they lack of social networks and other country specific and not directly productive valuable assets affecting their relative bargaining position against employers we introduce this simple observation into a matching model of the labor market and show that immigrants increase employment prospects of competing natives to test the predictions of our model we exploit yearly vari ations between 1998 and 2004 in the share of immigrants within occupations of 12 european countries we identify the causal impact of immigrants on natives employment rate using an instrumental variable strategy based on historical settlement patterns across host countries and occupations by origin countries we find that natives employment rate increases in oc cupations and sectors receiving more immigrants moreover we highlight the heterogeneity of this impact across groups of immigrants and host countries along dimensions that affect immigrants natives relative reservation wages

the simple analytics of optimal growth with illegal migrants this paper analyses the impact of illegal migration on the optimal path of domestic resident consumption the analysis draws two important conclusions first if illegal migrants and domestic labour are perfect substitutes illegal migration necessarily lowers the long run per capita consumption of domestic residents second if illegal migrants and domestic labour are imperfect substitutes the effect on the long run per capita domestic consumption is ambiguous however in the cobb douglas case the result is clear cut and per capita domestic consumption rises as a result of illegal migration

allocative disturbances and specific capital in real business cycle theories chanted albeit in varying degree with business cycle theories that either posit unexplained nominal wage and price rigidities or rely on misperceptions about nominal variables as a key driving force one response to this disenchantment has been a concentration of research effort on real business cycle theories aside from dissatisfaction with competitor theories the very visible oil price shock episodes of the 1970 s lent plausibility to the view that exogenous real disturbances cause large fluctuations in aggregate economic activity this essay on real business cycle theory considers the role of allocative disturbances in aggregate economic fluctuations when human and physical capital are specialized by allocative disturbances i mean events that impinge on the economy by inducing a costly time consuming reallocation of specialized resources at least since the publication of ricardo s principles in 1817 economists have recognized some of the potentially important aggregate consequences of allocative disturbances ricardo writes

implications of immigration policies for the u s farm sector and workforce i background in 1942 the united states and mexico signed the bracero program a formal agreement to draw seasonal labor to work in u s agriculture which provided employment opportunities to poor rural mexicans 1 however this program was abolished in 1964 ending the legal seasonal labor supply to u s agriculture in the southwestern states concurrently the united states passed the immigration act of 1965 establishing a quota of 120 000 legal immigrants per year the abandonment of the bracero program the new legal immigrants quota limits and economic inequality between the united states and mexico paved the way for steady entry of illegal laborers and led to eventual insurmountable illegal immigration population in the united states because illegal immigration was not a serious problem in the 1960s and 1970s legislation addressed only the number of legal immigrants allowed to enter the united states but in the 1980s illegal immigration began to emerge as a national problem and extensive debates entrenched around issues such as preventing the entry of unauthorized workers providing public services to illegal immigrants and even legalizing these workers consequently the u s congress attempted to address the immigration problems by enacting the 1986 immigration reform and control act irca the goals of irca were to eliminate the stock of undocumented workers through amnesty 2 and domestic enforcement of employer sanctions and curb the influx of illegal immigrants by increasing the border surveillance amnesty failed to eliminate the stock of illegal immigrants because only about half of the illegal immigrants filed for citizenship and it created future expectation of amnesty and more illegal unauthorized entry furthermore domestic sanctions on employers of undocumented workers and deportation of these workers were scantly enforced to stop the influx of immigrants irca focused heavily on tightening border control the irca also legislated the h 2a program which allowed agricultural employers to bring in guest workers during seasonal operations ers 2007 however farmers complained that the cumbersome paperwork of h 2a and bureaucratic delay were not conducive to procure seasonal laborers at the time of peak farm operations such as vegetable and fruit picking 3 in spite of irca s amnesty provision and strengthened control measures illegal immigration continued to rise about 12 million unauthorized immigrants resided in the united states in 2007 martin 2007 which is reaffirmed by many popular press reports leading to an extended congressional debate that began at the start of this decade to solve the illegal immigration problem several bills were proposed by the house of representatives the senate and the white house addressing issues related to increased domestic and border enforcements 4 paths to citizenship and guest worker programs montgomery 2006 these bills were not passed because of major disagreements among lawmakers over providing citizenship and guest worker programs as a result of the failed legislations and the september 11 attack the government primarily focused on border security accordingly funding for border enforcement has steadily increased 5 and resources were diverted from domestic to border enforcement however boucher and taylor 2007 documented that increased funding to secure the border did not deter undocumented workers from crossing the border because determined immigrants eventually find a way to enter the country by repeated attempts following september 11 2001 the u s immigration and customs enforcement ice further decreased the number of human hours devoted to worksite inspection because monitoring critical infrastructure took priority gao 2005 for example from 1999 to 2003 the number of human hours for domestic enforcement decreased from 480 000 to 18 000 6 7 but by late 2005 the u

firm incentives to promote technological change in pollution control reply abstract the process of technological change in pollution control is broken into three basic steps innovation diffusion and optimal agency response firm incentives to promote these steps are then examined under five regulatory regimes direct controls emission subsidies emission taxes free marketable permits and auctioned marketable permits on a relative basis emission taxes and auctioned permits provide the highest firm incentives to promote technological change at times free permits generate lower incentives direct controls which are common regulatory tools usually provide the lowest relative firm incentives to promote technological change

an empirical model of labor supply in a life cycle setting this paper formulates and estimates a structural intertemporal model of labor supply using theoretical characterizations derived from an economic model of lifetime behavior a two step empirical analysis yields estimates of intertemporal and uncompensated substitution effects which provide the information needed to predict the response of hours of work to life cycle wage growth and shifts in the lifetime wage path

the economic effect of immigration policies analyzing and simulating the u s case abstract in this paper we analyze the economic effects of different immigration policies using a model that incorporates economic and policy features crucial to understanding the migrant flows into the us we differentiate among the most relevant channels of immigration to the us family based employment based and undocumented moreover we explicitly account for earning incentives to migrate and for the role of immigrant networks in generating immigration opportunities hence we can analyze the effect of policy changes through those channels in our simulations comparing long run steady states highly skilled employment and unskilled immigrants generate larger surplus to us firms than natives do hence policies restricting their entry either directly or indirectly have a depressing effect on job creation and in turn on native labor markets our analysis gives new insights into the effect of policies as it accounts for the endogenous immigration response which is overlooked by most existing models

illegal immigration and resource allocation this paper studies the effects of illegal immigration and the associated expansion of the underground economy on the allocation of resources commodity prices and wages of workers both in the short run when occupational mobility is restricted and in the long run when the skill composition of the labor force is endogenous the paper goes on to consider some of the fiscal implications of illegal immigration and the related expansion of underground activity effects of sanctions against employers hiring illegal aliens and measures to legalize the status of clandestine foreign workers are also examined the geographical focus is on developed countries primarily the united states and europe excerpt

legal status and earnings of agricultural workers agricultural workers who work in the united states earn 15 more on average than do undocumented workers these earnings differentials vary substantially with demographic characteristics for example much of the weekly earnings loss from not having legal status can be offset by language ability most of the earnings differential is due to wage differentials rather than hours differentials

environmental innovation and the cost of pollution abatement revisited it is widely assumed in the literature that environmental innovation reduces the marginal cost of pollution abatement in this paper we show that this is not necessarily the case and we provide some unexpected outcomes

good jobs versus bad jobs this article develops a model of noncompetitive labor markets in which high wage good and low wage bad jobs coexist minimum wages and unemployment benefits shift the composition of employment toward high wage jobs because the composition of jobs in the laissez faire equilibrium is inefficiently biased toward low wage jobs these labor market regulations increase average labor productivity and may improve welfare

illegal immigration a supply side analysis abstract this paper analyzes the supply side determinants of illegal immigration using a three sector general equilibrium model of the source country agricultural liberalization raises illegal immigration while liberalization of the high tech sector reduces it in contrast capital mobility in the source country renders trade policy ineffective for controlling illegal immigration paradoxically increased enforcement by the host country may raise source country unskilled wages although illegal immigration falls finally under capital mobility a rise in the source country restrictions on capital inflow raises the level of illegal immigration and reduces the effectiveness of border enforcement efforts by the host country

differences in work conditions between natives and immigrants preferences vs outside employment opportunities abstract immigrants are disproportionately employed in agriculture and construction sectors with relatively high injury rates what pushes immigrants to accept riskier and more strenuous work conditions we propose a circular model and show that differences in average work conditions borne by natives and immigrants are driven by both preferences and unearned income using french data we find that in line with the model s predictions i rigid wages are associated with a larger immigrant native gap in work conditions ii high unearned income individuals benefit on average from better work conditions iii for immigrants and natives with high unearned income differences in demographic characteristics explain part of the immigrant native gap in work conditions in contrast the gap largely persists among low unearned income people even once we have imposed identical demographic composition among them this suggests that there must be other factors that influence preferences over work conditions and that are missing in our empirical analysis

the welfare effects of illegal immigration abstract this paper extends the work of ethier on illegal immigration by examining the optimal level of enforcement for the labor importing country in a two country model and by considering the effects of allowing capital mobility we derive a formula for the optimal level of enforcement against firms that hire illegal workers and show that the presence of enforcement costs makes the policy less efficient than a wage tax with capital mobility foreign workers gain from an increase in enforcement in the home country because capital is driven out of the home country

cooperation punishment and immigration abstract we study the incentive to cooperate in a society comprised of citizens and immigrants the level of cooperation is governed by a steady state under population dynamics along with the behavior of individual citizens and immigrants we provide an equilibrium characterization exhibiting a uniquely determined positive level of cooperation in society we then use this framework to study the impact of government programs aimed at punishing immigrants who defect when agents produce offspring we show that a consequence of such punishment is that while the incentive for immigrants to defect decreases there is an equilibrium substitution effect whereby citizens realize an increased incentive to defect

does technological innovation really reduce marginal abatement costs some theory algebraic evidence and policy implications the existing literature models innovation in pollution control as a reduction in marginal abatement costs we show that this assumption is inappropriate for production process innovations such as fuel switching algebraically we examine the effects of different innovation types on marginal abatement cost curves showing that some desirable innovations increase marginal abatement costs empirically we estimate marginal abatement costs for sulfur dioxide by measuring the output distance function for electric power in korea regression results confirm that production process innovations did raise marginal abatement costs in this case one policy implication economic instruments do not always provide stronger innovation incentives than command and control policies

optimal policies with an informal sector abstract this paper characterizes optimal policies in the presence of tax evasion and undocumented workers in equilibrium domestic workers may work exclusively in the formal sector or also in the informal sector surprisingly in equilibrium wages are always equalized between domestic and undocumented workers even if they do not work in the same sectors of the economy this is driven by the interaction of firm level decisions with optimal government policy we also find that enforcement may not always be decreasing in its cost and that governments will optimally enforce labour market segmentation if enforcement costs are not too high

on the macroeconomic and welfare effects of illegal immigration abstract this paper uses a dynamic general equilibrium model with labor market frictions to explore the economic consequences of illegal immigration in the baseline model native workers and illegal foreign workers compete for jobs in the same market but serve as imperfect substitutes in production the calibrated model generates a u shaped relationship between long run domestic consumption and the population share of illegal immigrants after taking into account both consumption and leisure i found that an increase in illegal immigration can generate significant welfare gains for the natives the baseline model is then extended to include heterogeneous workers in the domestic population

technical change and the marginal cost of abatement abstract we address one aspect of the treatment of technical change in the environmental economics literature how technical change impacts the marginal cost of abatement we review a selection of papers that employ a variety of representations of technical change and show that these representations have quite different and sometimes surprising effects on the marginal costs of pollution reductions we argue that these varied representations in fact correspond to a variety of different technology options we then present results indicating that this representation matters the impacts of technical change on the marginal cost of abatement can crucially impact policy analysis

learning matching and growth we examine an endogenous growth model in which market frictions are an integral part of the economic environment workers invest in education when young which raises their productivity onice employed the level of schooling also acts as a key determinant of the rate of economic growth by influencing workers ability to accumulate additional human capital on the job once schooling is completed workers search for employment the division of the surplus between vacancies and searching workers is characterized as is the optimal level of education the economy may display multiple steady state growth paths

should germany have built a new wall macroeconomic lessons from the 2015 18 refugee wave abstract in 2015 2016 germany experienced a wave of predominantly low skilled refugee immigration we evaluate its macroeconomic and distributional effects using a quantitative overlapping generations model calibrated using german micro data to replicate education and productivity differentials between foreign born and native workers workers are modelled as imperfect substitutes in aggregate production leading to endogenous wage differentials we simulate the dynamic effects of this refugee wave with specific focus on the welfare impact on low skilled natives our results indicate that the small losses this group suffers can be compensated by welfare gains of other parts of the native population

brain drain informality and inequality a search and matching model for sub saharan africa abstract this paper revisits the effect of brain drain on development and inequality using a two sector model with formal and informal labor markets contrary to existing studies we use a search and matching setting that allows to endogenize the employment structure and the wage differentials between different skill groups in the same sector and between workers with identical skills employed in different sectors theoretically the brain drain induces ambiguous welfare effects for those left behind as the potential loss gain depends on the parameters of the model we thus parameterize our model on 33 sub saharan african countries and produce comparative results for each of them we find that skilled emigration induces heterogeneous welfare losses for the low skilled population the size of these losses varies between 0 2 and 8 and is influenced by the parameters of the production and education technologies the results are fairly robust to identifying assumptions to the inclusion of technological externalities and to the endogenization of training decisions

use of mip for planning temporary immigrant farm labor force abstract growers of many fruit and vegetable crops in the us are heavily reliant on hand labor to perform all of the necessary operations throughout the growing season when the current supply of domestic hand labor is insufficient growers can employ nonimmigrant foreign workers through the h 2a visa program to perform any additional agricultural tasks a common criticism of the program is that it is an onerous process that places the burden of proof on growers and requires them to demonstrate that there is a shortage of domestic workers this requires growers to start their employment decision making months before the growing season starts using limited knowledge about the upcoming season since no labor focused decision making tools exists for growers a mixed integer programming model is presented in this article which develops tactical level planting harvesting and labor acquisition schedules for use by growers to determine the appropriate number of h 2a workers needed this formulation is applied to an average farm in the yuma arizona region as a case study in addition the study is extended to show how the model can be employed as a regulatory tool to determine the economic impact from modifying the h 2a application policy this analysis in the yuma region demonstrated that increasing the h 2a program provides a positive economic incentive offset by moderate domestic job displacement

immigration remittances and business cycles we use data on border enforcement and macroeconomic indicators from the united states and mexico to estimate a two country business cycle model of labor migration and remittances the model matches the cyclical dynamics of labor migration to the united states and documents how remittances to mexico serve an insurance role to smooth consumption across the border during expansions in the destination economy immigration increases with the expected stream of future wage gains but it is dampened by a sunk migration cost that reflects the intensity of border enforcement during recessions established migrants are deterred from returning to their country of origin which places an additional downward pressure on the wage of native unskilled workers thus migration barriers reduce the ability of the stock of immigrant labor to adjust during the cycle enhancing the volatility of unskilled wages and remittances we quantify the welfare implications of various immigration policies for the destination economy

immigration control and the welfare state abstract we examine a model of a rich country with a redistributive public sector and facing costly immigration control when illegal immigrants have access to the public sector we show that as border control becomes more expensive inequality in the rich country increases redistributive transfers decrease and then may increase some immigration is permitted and foreign aid may be used to reduce the migration pressure because of nonconvexities we also show that a small increase in the poor country s population can lead to the collapse of the redistributive public sector we then consider excluding illegal immigrants from the public sector e g california proposition 187 we find that collapse is no longer possible and that the rich country takes the toughest official stance on immigration but does not enforce it with border controls

immigration skill heterogeneity and qualification mismatch we investigate the effects of us immigration on native workers in a search and matching environment that allows for skill heterogeneity differential search cost cross skill matching and imperfect transferability of human capital across borders we find that cross skill matching benefits the unskilled and hurts the skilled native workers similarly new unskilled immigration benefits the low skilled native workers and hurts the high skilled on the other hand new skilled immigration benefits both skilled and unskilled natives moreover when we simulate the effects of the actual us immigration influx that took place between the years 2000 and 2009 we find that both skilled and unskilled native workers gain we also find that initially an improvement in the transferability of human capital benefits the high skilled natives at the expense of the low skilled nevertheless below a certain overeducation ratio further improvements in the transferability of human capital make both types of native workers worse off

skills and the pattern of migration the role of qualitative and quantitative restrictions on international labor mobility this paper develops a two country model of international migration in an attempt to study the role of both qualitative and quantitative restrictions on international labor mobility individuals are distinguished in terms of their ability and age enabling the model to examine factors which influence the age and skill profile of those who migrate as well as the equilibrium flow of migrants and the pattern of factor rewards in the two economies effects of changes in certain parameters of the model are related to the nature of the immigration policy enforced by the host country the role of emigration restrictions is also considered excerpt

postwar british economic growth and the legacy of keynes the policies used by britain to finance world war ii represented a dramatic departure from the policies used to finance earlier wars and were very different from the policies used by the united states during the war following keynes s recommendations britain taxed capital income at a much higher rate than the united states during the war and for much of the postwar period we analyze quantitatively the policies designed by keneys using an endogenous growth model and the ncoclassical growth model we also evaluate the implications of tax smoothing policies we find that the welfare costs of keynes s policies were very high relative to a tax smoothing policy and argue that britain s poor macroeconomic performance in the early postwar period is a consequence of the high tax rates levied on capital income

economic interactions and social tolerance a dynamic perspective we propose an evolutionary game to analyse the dynamics of tolerance among heterogeneous economic agents we show that i intolerance is much more persistent than tolerance ii a fully tolerant society assures prosperity iii cultural integration should precede economic integration

modelling imperfectly appropriable r d via spillovers abstract we provide an extensive comparison of the well known r d models of d aspremont jacquemin and kamien muller zang exposing full or partial conflict in key conclusions and policy prescriptions using a mix of formal and or intuitive criteria we argue that the first model is of questionable validity for large spillover values the latter being characterized by jointly increasing returns to scale in the r d process an argument leading to equivalence between the two r d processes but not to agreement on some key conclusions is exposited in conclusion the models emerge as fundamentally different although a unilateral shift in the cost function of the first leads to agreement in all equilibrium outcomes

tax policy and capital allocation summary the purpose of this paper is to analyze the impact of u s tax policy on the efficiency of capital allocation to achieve this objective we employ an intertemporal general equilibrium model of the u s economy implemented econometrically for annual data covering the period 1955 1980 we present a detailed model of the provisions of u s tax law applicable to income from capital we use intertemporal equilibrium paths corresponding to alternative tax policies to evaluate proposals for tax reform we find that dramatic gains in economic welfare would result from a shift from direct to indirect taxation

labor market effects of demographic shifts and migration in oecd countries the labor force of each industrial country is being shaped by three forces ageing education and migration drawing on a new database for the oecd countries and a standard analytical framework this paper focuses on the relative and aggregate effects of these three forces on wages across different skill and age groups over 2000 to 2010 the variation in the age and educational structure of the labor force emerges as the dominant influence on wage changes the impact is uniform and egalitarian in almost all countries the changes in the age and skill structure favor the low skilled and hurt the highly skilled across age groups immigration plays a relatively minor role except in a handful of open countries like australia and canada where it accentuates the wage equalizing impact of ageing and education emigration is the only inegalitarian influence especially in ireland and a few eastern european countries which have seen significant outflows of high skilled labor to western european union countries

the economic effects of immigration a dynamic analysis abstract this paper examines the economic effects of immigration using a neo classical growth model with overlapping dynasties we demonstrate that in contrast to the predictions of the static models often used in the analysis of immigration in a dynamic model with endogenous capital accumulation shifts in factor prices that result from changes in immigration policy will be very modest consequently benefits to natives from immigration are much smaller than previous studies have found and smaller still if labor supply is elastic on the other hand the adverse effects on wages are much smaller as well implying that in a model with only two inputs immigration plays a much smaller role in redistribution from labor to capital than previously thought

illegal aliens unemployment and immigration policy abstract this paper develops a simple two country model of illegal immigration in an attempt to examine the interaction among variables such as the stock of migrant labor the unemployment rates of the two economies and the rate of spending by the host country on the enforcement of its immigration restrictions the focus of the analysis is on the dynamics of immigration policy and on its role in determining the nature of the mechanism by which disturbances to the labor market of one country are transmitted to that of the other in the short run and in the long run

efficiency inducing taxation for polluting oligopolists abstract we show that there exists a time independent tax rule that guides polluting oligopolists to achieve the socially optimum production path the optimal tax is dependent on the current pollution stock and it may be negative when the pollution stock is low a surprising result is that the optimal tax rule may give firms a subsidy for an initial time interval even though under laissez faire their output always exceeds the socially optimal output this subsidy however induces firms to produce less than they would under laissez faire

the ineffectiveness of effective tax rates on business investment a critique of feldstein s fisher schultz lecture abstract in his fisher schultz lecture martin feldstein 1982 examined the effects of non neutral tax rules on business investment by estimating three econometric models and he concluded that the rising rate of inflation has because of the structure of existing u s tax rules substantially discouraged investment in the past 15 years in a detailed examination of feldstein s effective tax rate model and a less extensive review of his other formulations neoclassical and return over cost we advance a number of important and independent criticisms and find that these three models fail to support feldstein s conclusion that taxes have exerted a significantly depressing effect on net investment during the recent inflation episode

the economics of special interest politics the case of the tariff this paper investigates the interaction of politicians and special interest lobbies the goal is to model the equilibrium levels of redistributive policies such as taxes subsidies tariffs and regulatory decisions the model is applied throughout to the setting of tariffs by contributing to political campaigns special interest lobbies generate economic returns higher tariffs generate revenue for import competing industries through higher product prices higher milk support prices raise dairy farm income and so forth the lobby invests to maximize these net economic returns in evaluating their chances of election politicians weigh the favorable effects of special interest money against the unfavorable association with the lobby and the social cost of the redistributive policy section i explores the lobby s problem it describes a formalization of mancur olson s discussion of the voluntary provision of public goods and optimal contributions by lobbies to political campaigns section ii describes determination of the equilibrium tariff positions of each politician in a political campaign

the simple analytics of optimal growth with illegal migrants a clarification abstract this paper reexamines the welfare effects of illegal immigration studied by hazari and sgro the simple analytics of optimal growth with illegal migrants journal of economic dynamics and control 28 1 141 151 in contrast to their negative conclusion we obtain ambiguous welfare prediction which is due to the presence of two opposing effects at work a positive exploitation effect and a negative intertemporal effect with cobb douglas production technology we show that per capita domestic consumption rises in the presence of illegal migration

the unemployment volatility puzzle is wage stickiness the answer i discuss the failure of the canonical search and matching model to match the cyclical volatility in the job finding rate i show that job creation in the model is influenced by wages in new matches i summarize microeconometric evidence and find that wages in new matches are volatile and consistent with the model s key predictions therefore explanations of the unemployment volatility puzzle have to preserve the cyclical volatility of wages i discuss a modification of the model based on fixed matching costs that can increase cyclical unemployment volatility and is consistent with wage flexibility in new matches

incentives for advanced pollution abatement technology at the industry level an evaluation of policy alternatives abstract in this research we evaluate the incentive effects of five environmental policy instruments to promote the development and adoption of advanced pollution abatement technology in a heterogenous industry from most to least incentive the policy instruments can be rank ordered as follows i auctioned permits ii emissions taxes and subsidies iii issued marketable permits iv performance standards including performance standards in this list necessitates the assumption that they are differentiated between heterogeneous firms before the technology adoption in a way which replicates the initial emissions control distribution of the efficient incentive based instruments with the starting point normalized in this fashion the instrument rankings are invariant with respect to the size of firms the size of the industry or the industry s abatement cost structure

on environmental regulation of oligopoly markets emission versus performance standards by specializing montero s j environ econ manag 44 23 44 2002 model of environmental regulation under cournot competition to an oligopoly with linear demand and quadratic abatement costs we extend his comparison of firms incentives to invest in r d under emission and performance standards by solving for a closed form solution of the underlying two stage game this allows for a full comparison of the two instruments in terms of their resulting propensity for r d and equilibrium industry output in addition we incorporate an equilibrium welfare analysis finally we investigate a three stage game wherein a welfare maximizing regulator sets a socially optimal emission cap under each policy instrument for the latter game while closed form solutions for the subgame perfect equilibrium are not possible we establish numerically that the resulting welfare is always larger under a performance standard

the theory of international factor flows the basic model abstract the basic model used to discuss the simultaneous international flow of labor and capital is a one commodity model in which a common technology is shared between countries the ramaswami result wherein an optimal restriction of labor inflows is superior to an optimal restriction on capital outflows for a capital abundant country is extended to reveal that optimality requires inflows of both factors box diagrams and iso welfare contours are used to show how optimal policy rankings are reversed if foreign labor must be paid higher home wages

risk preference immigration policy and illegal immigration abstract the paper analyzes the effects of government policy upon illegal immigration the model used as a vehicle for this analysis is an extension of ethier s one small country model of illegal immigration to a two country context we distinguish between the cases of capital immobility and free capital mobility and consider illegal immigration when there are border patrols by the government and when there are internal enforcement procedures in effect unlike previous researchers who have assumed risk neutrality we examine the impacts of government policy when prospective illegal immigrants exhibit risk averse and risk loving behavior the relaxation of the risk neutrality assumption leads to the possibility of multiple and unstable equilibria moreover attitudes to risk and the probability of detection are shown to have implications for some equilibrium responses to tighter surveillance

how many cake eaters chouette on a du monde a diner abstract we use a cake eating model with a non renewable resource and a backstop technology to describe the intertemporal effect of a sudden increase of the population level e g due to migration the migrants enter an economy in which there is already surplus labor and they receive transfers from natives these assumptions imply that the present discounted value of natives welfare falls the counterintuitive result is that the flow of natives utility can increase at the time of the population change

innovation in pollution control comparisons of the various institutional arrangements for controlling pollutant emissions from individual sources effluent fees effluent control subsidies marketable permits and direct command and control regulation have usually focused on their static efficiency properties and institutional feasibility e g dales 1968 zerbe 1970 baumol and oates 1975 kneese and schultze 1975 marin 1978 mills and white 1978 spence and weitzman 1978 russell 1979 a relatively neglected area has been the study of how each arrangement influences innovation in pollution control a few studies e g kneese and schultze 1975 marin 1978 mills and white 1978 russell 1979 have casually claimed that the control methods that rely on economic incentives provide superior incentives for innovation but there have been few systematic studies of the question this paper provides a simple model of pollution control innovation by a profitmaximizing polluter who is subject to the various control methods the consequences of the methods will be explored in three major contexts first we assume that the polluter and the innovation is a small enough part of the overall pollution problem so that none of the important marginal conditions are changed by the innovation second we assume that the polluter and the innovation are important enough so that marginal conditions are changed by the innovations but that the governmental authority determining pollution control incentives or levels fails to make the appropriate adjustments third we again assume that the innovation causes marginal conditions to change but in this case the governmental authority makes the appropriate adjustments we use the term ratcheting to describe this last phenomenon in all cases we assume that the innovating polluter correctly predicts the reactions of the governmental authority and bases his innovation decisions on that prediction a profit maximizing entrepreneur would normally be expected to adopt any innovation that promised gains present discounted value to him in excess of initial

immigrant job search assimilation in canada immigrant assimilation is a major issue in many countries while most of the literature studies assimilation through a human capital framework we examine the role of job search assimilation to do so we estimate an equilibrium search model of immigrants operating in the same labour market as natives where newly arrived immigrants have lower job offer arrival rates than natives but can acquire the same arrival rates according to a stochastic process using canadian panel data we find substantial differences in job offer arrival and destruction rates between natives and immigrants that are able to account for three quarters of the observed earnings gap the estimates imply that immigrants take on average 13 years to acquire the native search parameters due to immigrants facing much lower on the job offer arrival rates than natives the model predicts that earnings growth through job search is minimal for immigrants prior to their job search assimilation

political economy sectoral shocks and border enforcement in this paper we examine the correlation between sectoral shocks and border enforcement in the united states enforcement of national borders is the main policy instrument the u s government uses to combat illegal immigration the motivation for the exercise is to see whether border enforcement falls following positive shocks to sectors that are intensive in the use of undocumented labor as would be consistent with political economy models of how enforcement policy against illegal immigration is determined the main finding is that border enforcement is negatively correlated with lagged relative price changes in the apparel fruits and vegetables and slaughtered livestock industries and with housing starts in the western united states this suggests that authorities relax border enforcement when the demand for undocumented workers is high

dynamic incentives by environmental policy instruments a survey abstract in this paper i survey and discuss recent developments on the incentives provided by environmental policy instruments for both adoption and development of advanced abatement technology a main conclusion to be drawn from the literature is that under competitive conditions market based instruments usually perform better than command and control moreover taxes may provide stronger long term incentives than tradable permits if the regulator is myopic if the government can anticipate new technology or is able to react on it optimally regulatory policies by virtue of administered prices taxes and policies by setting quantities issuing tradable permits are almost equivalent the literature also shows that under competitive conditions there is no difference between auctioning permits and grandfathering moreover timing and commitment of environmental policy is not crucial for adoption under competitive conditions commitment has positive incentive effects however if an r d sector has market power in the presence of market imperfections the ranking of the different policy instruments is ambiguous

us immigration policies and dynamics of cross border workforce in agriculture given the contentious debate on immigration this study develops a dynamic model to analyse the effects of stricter border and domestic enforcement and streamlining the guest worker programme on cross border migration from mexico employment and production in us labour intensive and mexican agriculture and the us and mexican wage rates the model incorporates labour leisure decisions of mexican workers and labour market dynamics and linkages the findings show stricter border and domestic controls exacerbate the labour shortage problems and reduce the us agricultural production streamlining the guest worker programme provides a steady supply of farm workers and has negligible impact on the us wage

the parallel market of illegal aliens a computational approach abstract this paper develops the notion of illegal aliens as a parallel market in coexistence with the regular market of legal labor in the presence of both price controls on legal labor by minimum wage legislation and quantity controls on illegal aliens by immigration laws illegal aliens involve not only rural urban migration but also tax evasion and deportation costs we develop an analytical equilibrium structure which links markets for legal labor and illegal aliens illustrate how much an equilibrium can be computed and explore some implications of the linkage using united states data

a note on permits standards and technological innovation abstract montero j environ econom manage 44 2002 23 contrasts the incentives to invest in new abatement technologies under different regulatory instruments and argues that one needs to consider the induced output effects that derive from lower abatement costs montero shows that once one takes into account these effects on output command and control instruments can generate stronger incentives to innovate than market based instruments this result rests on strategic output effects under command and control however he maintains that under perfectly competitive conditions market based instruments will continue to weakly dominate command and control regulation this note clarifies two issues raised by montero first i use montero s approach to show that in fact performance concentration standards will generate greater incentives to innovate than market based instruments in perfectly competitive markets one does not require strategic effects to get this result second montero abstracts from production costs and concentrates solely on abatement costs he implicitly assumes that marginal production costs are constant i show that some of montero s results change once increasing marginal production costs are considered when marginal costs are increasing the benefit of additional output is tempered and market based instruments again look more favorable

pareto improving immigration in an economy with equilibrium unemployment economists from around the industrialized world demonstrate the strength of both theories about the rise of economic inequality that is it the mechanical consequence of changes in such economic fundamentals as technology and demographic parameters and that it is the contingent consequence country specific and time specific changes in institutions they find that though institutions always play a crucial role in shaping inequality and sometimes preventing it still it creeps in

the economics of new blood abstract we construct a dynamic general equilibrium model of search and matching where public knowledge grows through time and workers accumulate a fraction of this knowledge through education retraining due to search delays the unemployment pool is populated by vintages of workers of differing productivities through intergenerational rivalry the human capital of older generations is rendered obsolete relative to that of the new blood higher knowledge growth exacerbates intergenerational competition thereby lowering education and growth while raising unemployment and inequality these findings help explain wage compression expansion and the hump shaped wage tenure profile across cohorts

foreign aid and illegal immigration abstract we develop a two country model of illegal immigration we analyse the effect of foreign aid on illegal immigration and consider both exogenous and endogenous income repatriation in the former an increase in aid increases illegal immigration if the total amount of aid is small a transfer of resources from border control to aid increases illegal immigration when the total amount of aid is small under endogenous income repatriation aid has no effect on illegal immigration when the preferences of the immigrants and their family members are the same if the preferences are different aid may increase illegal immigration

tax policy and investment in major u s macroeconomic econometric models abstract in an analysis of six major u s quarterly models the predicted results of tax incentives for investment are found to vary widely differences are traced to critical specifications in investment equations when appropriately revised investment equations are reestimated the role of tax parameters is much reduced particularly among the high outliers and the variance among the models is narrowed decidedly full model simulations of revised equations suggest that current and proposed incentives such as the investment tax credit and accelerated depreciation are not cost effective increases in investment approximate only half of static tax losses and budget deficits widen

immigration and inequality immigration is often viewed as a proximate cause of the rising wage gap between highand low skilled workers nevertheless there is controversy over the appropriate theoretical and empirical framework for measuring the presumed effect and over the precise magnitudes involved this paper offers an overview and synthesis of existing knowledge on the relationship between immigration and inequality focusing on evidence from cross city comparisons in the u s while some researchers have claimed that a cross city research design is inherently flawed i argue that the evidence from cross city comparisons is remarkably consistent with recent findings based on aggregate time series data in particular cross city and aggregate time series comparisons provide support for three key conclusions 1 workers with below high school education are perfect substitutes for those with a high school education 2 high school equivalent and college equivalent workers are imperfect substitutes with an elasticity of substitution on the order of 2 3 within education groups immigrants and natives are imperfect substitutes together these results imply that the average impacts of recent immigrant inflows on the relative wages of u s natives are small the effects on overall wage inequality including natives and immigrants are larger reflecting the concentration of immigrants in the tails of the skill distribution and higher residual inequality among immigrants than natives even so immigration accounts for a small share 5 of the increase in u s wage inequality between 1980 and 2000

a political economic analysis of labor migration and income redistribution we present a two country political economic model of income redistribution with internationally mobile labor migration can be exogenous and or endogenous i e determined by labor income differentials political influence is determined by the size and homogeneity of the groups where the latter can be affected by immigration we show that immigration can increase the transfers to and the income of the mobile group we also investigate the possibility of migration regulation tax transfer policy competition and coordination and finally coordination of regulation policies it is shown that the selection of any of those regimes will depend on the particular distribution of political influence among the relevant social groups in the two countries