on the robustness of robustness checks of the environmental kuznets curve hypothesis since its first inception in the debate on the relationship between environment and growth in 1992 the environmental kuznets curve hypothesis ekc hereafter has been subject of continuous and intense scrutiny the most recent line of investigation criticizes the ekc hypothesis on more fundamental grounds in that it stresses the lack of sufficient statistical testing of the empirical relationship and questions the very existence of the notion of ekc attention is in particular drawn on the stationarity properties of the series involved per capita emissions or concentrations and per capita gdp and in case of presence of unit roots on the cointegration property that must be present for the ekc to be a well defined concept only at that point can the researcher ask whether the long run relationship exhibits an inverted u pattern on the basis of panel integration and cointegration tests for sulfur stern 2004 and perman and stern 1999 2003 have presented evidence and forcefully stated that the ekc hypothesis does not exist in this paper we ask whether similar strong conclusions can be arrived at when carrying out tests of system fractional integration and cointegration as an example we use the controversial case of carbon dioxide emissions the results show that more ekcs come back into life relative to traditional integration cointegration tests however we confirm that the ekc hypothesis remains a fragile concept

a panel analysis of job changes and unemployment abstract this paper tests for state dependence in histories of unemployment and job mobility from the first six waves of the german socio economic panel soep transitions between states of employment and unemployment are modelled as outcomes of binomial probit processes which are first and higher order markov the use of simulation estimation allows quite general intertemporal covariance structures in order to capture individual heterogeneity it is investigated how differences in human capital and other personal characteristics and macro or industry determinants such as regional unemployment growth and immigration pressure affect labour mobility

bounds testing approach to analyzing the environment kuznets curve hypothesis with structural beaks the role of biomass energy consumption in the united states abstract this paper re examines the specification of the environmental kuznets curve ekc for the us economy by accounting for the presence of a major renewable energy source and trade openness over the period 1960 2016 biomass energy consumption and trade openness as well as oil prices are considered as additional determinants of economic growth and consequentially of co 2 emissions the bounds testing approach to cointegration is used to examine the long run relationship between the variables in the presence of structural breaks the causal relationship between the variables is investigated by applying the vecm granger causality test and accommodating structural breaks the results confirm the presence of cointegration between the variables moreover the relationship between economic growth and co 2 emissions is not only inverted u shaped but also n shaped in the presence of structural breaks and biomass biomass energy consumption lowers co 2 emissions exports imports and trade openness are also environment friendly the causality analysis underscores a feedback effect between biomass energy consumption and co 2 emissions economic growth still granger causes co 2 emissions in this new setup

risk aversion and the earnings of us immigrants and natives the literature on the earnings of natives and immigrants has heretofore ignored differences in compensating wages for job risks it is possible that the risk involved in migration may indicate a greater willingness on the part of immigrants to accept riskier jobs than natives alternatively immigrants may attempt to protect their migration investment by choosing occupations with less risk indicating a higher degree of risk aversion this paper examines differences in risk aversion between us immigrants and natives and corresponding differentials in wage premiums for job risk our analysis suggests that on average immigrants are exposed to 21 less risk than natives but receive a 25 higher risk premium the higher degree of risk aversion of immigrants and their lower exposure to risk and thus lower earnings explains 5 of the higher observed earnings of natives we also find that earlier immigrant cohorts pre 1970 are employed in riskier jobs than are recent cohorts but the difference accounts fo

co2 emissions non renewable and renewable electricity production economic growth and international trade in italy abstract this paper applies the autoregressive distributed lag ardl bounds testing approach to cointegration to investigate the dynamic causal relationships between co2 emissions per capita real gdp per capita per capita non renewable electricity production and per capita renewable electricity production and international trade in the case of italy from 1960 to 2011 we find cointegration among these variables in the presence of possible structural breaks and we overcome the problem of multicollinearity in the research design the environmental kuznets curve ekc hypothesis is validated analytically because the estimated pollution model indicates that economic growth leads to less pollution over time per capita renewable electricity production reduces the level of co2 emissions per capita in the short run and in the long run whereas international trade only impacts positively upon carbon dioxide emissions per capita in the long run international trade granger causes co2 emissions per capita and non renewable electricity production per capita moreover the results depict the existence of the long run unidirectional granger causality relation running from output per capita to renewable electricity production per capita and from non renewable electricity production per capita to renewable electricity production per capita the findings indicate that renewable electricity production is a key solution in reducing pollutant emissions over time this result should be of concern to policy makers

labor market performance as a determinant of migration in a comparison of migrants with nonmigrants both observed and unobservable productivity factors are relevant this paper focuses more on the unobservable factors and their correlation between places of origin and destination a human capital model of migration demonstrates that more productive workers at the origin would choose to migrate only if the correlation between origin and destination factors is strongly positive longitudinal data drawn from the cote d ivoire living standards survey 1985 86 are used to examine the pattern of migration in the light of labor market performance both of wage employees and non farm self employed workers it is found that indeed the more productive workers migrate furthermore the general direction of migration is toward cities the conclusion is therefore that rural areas lose their productive workers and that urban areas may gain in productivity from the geographical shifts in population

information flow expectations and job search rural to urban migration process in india abstract probabilistic migration models assume that search for urban jobs is entirely an urban based activity and that employment in free entry activities is a transitional phase during which migrants are actively searching for formal sector employment this paper tests the empirical validity of these assumptions using data collected by the author in a sample survey in delhi in 1975 76 on 1400 migrants from rural areas the evidence indicates that the migration process postulated in probabilistic models is not realistic in the case of delhi over one half of the sample had moved to delhi after lining up specific jobs a sizeable proportion expected to enter on arrival activities generally considered to be characterized by freedom of entry and the majority of entrants into free entry activities did not search for alternative employment and were engaged in the same activities at the time of the survey

economic development and co2 emissions a nonparametric panel approach we examine the empirical relation between co2 emissions per capita and gdp per capita during the period 1960 1996 using a panel of 100 countries relying on the nonparametric poolability test of baltagi et al baltagi b h hidalgo j li q 1996 a nonparametric test for poolability using panel data journal of econometrics 75 345 367 we find evidence of structural stability of the relationship we then specify a nonparametric panel data model with country specific effects estimation results show that this relationship is upward sloping nonparametric specification tests do not reject monotonicity but do reject the polynomial functional form which leads to the environmental kuznets curve in several studies

internal migration and urban employment in the third world for more than a decade michael todaros model has provided a widely accepted theoretical framework for explaining the massive flows of rural urban migration that are observed in many third world countries this paper however presents data amassed from a wide range of countries to highlight a crucial shortcoming of that model it will be shown that far from being general in nature the todaro approach is limited to explaining the movement of persons possessed of sufficient human capital to qualify them for modern sector employment the present work utilizes the perspective of the urban subsistence sector to develop a model that serves as a useful complement to that of todaro excerpt

migratory labor and agriculture farm workers are shown to respond strongly to economic incentives to seasonally migrate for work the economic model is specified with separate earnings structures for migratory and nonmigratory work and a reservation wage for migration is specified to reflect the choice between migratory and nonmigratory work the empirical model adjusts for self selectivity in the sample and demonstrates that domestic farm workers sort themselves into migratory and nonmigratory workers in a manner consistent with the theory of comparative advantage implications for immigration and government employment and training programs are considered

measuring the income effects of migrant remittances a methodological approach applied to greece there is an ongoing debate on how the often voluminous migrant remittances are used and to what extent they contribute to the development of the migrant s country of origin there are surveys on how remittance recipients spend their income and discussions on how effective government policies are in attracting remittances in fact there is quite a literature often negative concerning the contribution of remittances to productive investment this literature looks at remittances in a variety of ways concerning the substance of the inquiry some of the writers investigate the impact of remittances as a compensating factor for the losses of the human capital invested in emigrants or in a more general way as a parameter in the overall impact of migration others discuss the impact of remittances alone separated from the impact of migration flows 2 from a methodological point of view some of the theoretical analyses are cast in macroeconomic terms and are based on a tradednontraded goods model in which labor is exchanged for remittances whereas capital is immobile 3 other writers examine the welfare effects of remittances alone or jointly with the effects of migration 4 most of this literature however focuses on the first round of remittance spending and ignores the diffused multiple effects thus producing inconclusive evidence on the impact of remittances on the economy 5 there is in particular little specific research on how aggregate output and employment are affected and very limited sectoral and regional investigation of the issue 6 this article attempts a disaggregated sectoral analysis of the income effects of remittances on consumption production imports em

assimilation and the earnings of young internal migrants this paper investigates if young internal migrants in the united states experience economic assimilation as they adapt to their new residential location using data from the national longitudinal survey of youth the authors examine how the hourly earnings of interstate migrants are affected by the number of years they have spent in their destination state their study indicates that internal migrants initially earn less than natives but that this wage differential disappears within a few years moreover the initial wage disadvantage of internal migrants depends upon the distance moved and economic conditions in the destination labor market copyright 1992 by mit press

undocumented immigration and income inequality in the native born population of the us econometric evidence according to the theoretical models suggested by chiswick and others the growing presence of undocumented immigrants in the us should have a disequalizing effect on income distribution in the native born population however this proposition has not been subjected to empirical test here an econometric model of income inequality in native born households is constructed and census based estimates of the state distribution of undocumented immigrants are used to estimate model parameters the results show that such immigration has been disequalizing but that the impact has been small ranking behind several other socio economic variables

savings remittances and return migration abstract using a vast west german data set the paper shows that savings and remittances of migrants can be well explained by remigration plans and economic as well as demographic variables however the planned future duration of residence in germany has a negative and significant effect only on remittances

migration theories and evidence an assessment abstract this paper presents a critical survey of theories of migration their welfare and policy implications and their empirical relevance we also develop some extensions to the theory beginning with the harris and todaro ht model in particular the ht model is extended to examine risk averse behaviour within families where the migration of members of families serves to diversify risk the welfare implications of the individual migration decision and government intervention in the form of employment subsidies are examined recent evidence on international migration is presented it is shown that migration does not flow automatically in response to wage differentials characteristics of migrants and the process of self selection are found to be important determinants of the rate of migration

urban employment and the labor market in developing nations urban employment in developing countries is actually richer and considerably more diverse and rural urban migration is less ill fated than can be inferred from the literature this paper focuses on 1 urban labor force growth 2 urban labor market structure outcomes and processes and 3 the interplay among economic growth traditional factors and the urban labor market the assumption that urban unemployment is typically high or rising has never been clearly established this review of the functioning of urban labor markets emphasizes 3 points prevailing sectoral aggregations fail as examples of dual labor markets urban wage rigidity is not typical and there are enough indications of a dispersed wage structure tending toward equilibrium the diverse migratory and employment channels and probabilities also suggest decentralized and flexible adjustments rather than a chronically unresponsive unemployment rate these leave us without an economywide theory of urban unemployment but this is not a great loss as more important and troublesome are the pervasive indicators of inequality rents and differential labor utilization and productivity that have no such simple origin and reflect the unequal endowments pockets of privilege and noncompeting traits that are endemic in the social order urbanization is an aspect of economic transformation that involves changes in location and types of economic activity capital widening activities old new input combinations the viability of traditional skills and the economic basis for self employment and entrepreneurship are relatively poorly explained by current models although traditional and modern are seen as opposing factors it is surely a mistake to see the former as extraneous to the process of economic transformation the economic value of traditional skills has been consistently underrated because of an assumption that the urban demand for them is negligible and that the rural labor force is homogenous analyses of urban employment problems in developing countries must embrace 3 neglected but promising directions 1 a focus on the range of capital widening economic activities that cannot be conveniently be classified as either traditional or modern 2 more knowledge about the differentiating elements in the complex traditional sector and 3 more in depth analysis of the microeconomic units that illuminate the choices made by firms and households in a variety of contexts

a multiscale reassessment of the environmental kuznets curve for energy and co2 emissions abstract this paper investigates the environmental kuznets curve hypothesis for total primary energy supply and co2 from fuel combustion over the period 1971 2015 our analysis has two distinguishing features firstly it adopts a robustness approach by a using both parametric and semi parametric methods and b analysing different geographical scales secondly it strictly adheres to the ekc narrative by a not using control variables and b taking energy and co2 in absolute rather than in per capita terms which is consistent with the fact that nature cares about absolute pressures we show how evidence for ekc changes depending on the model specification the sample and the used variables hence this paper contributes to explaining why the literature on the ekc gives mixed results the multiscale perspective and some theoretical considerations however tell how to perform the analysis appropriately thus we can affirm that both for co2 and energy the fragile evidence of ekc that was emerging at the end of the last century has vanished with the new wave of globalization there is only evidence of decreasing elasticities for very high income countries interestingly the great recession might have produced structural reductions in tpes and co2 in the affected countries finally the case of germany which shows ekc patterns indicates that active energy policies can reduce energy and co2 without harming the economy

the effect of industrial agglomeration on green development efficiency in northeast china since the revitalization abstract using panel data from 2003 to 2016 this paper estimates the green development efficiency of 34 cities in northeast china based on the sbm dea model and determines whether industrial agglomeration promotes or impedes green development efficiency the results show the following 1 the average green development efficiency of northeast china exhibits a fluctuant upward trend in 2003 2016 and there are significant spatial differences 2 during the revitalization period industrial agglomeration hinders green development efficiency a u shaped relationship exists between industrial agglomeration and green development 3 economic development level and foreign direct investment are positively related to green development efficiency while industrial structure energy consumption structure and environmental regulation are negatively related economic development level has the greatest positive influence and environmental regulation the strongest negative influence on green development several corresponding policy implications are proposed for promoting green development and revitalization

regional labor markets and the determinants of wage inequality from 1972 to 1990 the united states experienced the largest increase in wage inequality of any developed country the spread in log wages between the 90th and 10th percentiles of the male wage distribution increased by about 60 points and inequality increased within virtually every demographic or skill category of the labor force see chinhui juhn et al 1993 various explanations have been offered including changes in the relative demand for skill intensive goods international trade immigration of less skilled workers and increased labor force participation of women yet attempts to quantify the relative importance of these factors have not met with much success this leaves skill biased technical change as the residual claimant that rationalizes the data this paper uses regional differences in the evolution of wage inequality to provide new evidence on the determinants of relative wages using a model of factor demand in geographic markets i isolate contributions of i changing skill ratios in the labor force ii increased participation of women iii technical change and iv changes in the industrial composition of labor demand the data indicate that changing skill ratios and women s labor supply have affected the wages of low skilled men in the west the data indicate that increased immigration of less skilled hispanic and asian workers has adversely affected the wages of natives causing a greater increase in inequality there than in any other region of the country i modeling wage inequality in regional markets

the value of u s labor market experience in the home country the case of puerto rican return migrants many immigrants to the united states and other industrialized economies eventually return to their home country more than one million foreign born persons left the united states between 1960 and 1970 1 research has documented return migration to israel italy ireland mexico and puerto rico as well as the return of thousands of guest workers from industrialized european economies in the mid seventies 2 however little is known about how the migration experience shapes the earnings profiles of returnees and how the economic standing of returnees compares to that of stayers in the home labor market in this article i analyze the transferability of human capital accumulated abroad by return migrants and the economic assimilation process of returnees i investigate if return migrants can capitalize at home on the years of labor market experience accumulated abroad i also examine whether return migrants assimilate that is if their earnings increase with time spent in the home labor market to evaluate how returnees fare in the home labor market the earnings of returnees are compared to the earnings of stayers one of the findings from the literature of immigration to the united states and other industrialized economies is that immigrants lose human capital on crossing national borders 3 it has also been noted that the earnings of immigrants grow with time spent in the host labor market suggesting that immigrants undergo a process of assimilation 4 most of the research on international return migrants is qualitative in nature and the small sample sizes caution about generalizations a large amount of this research has focused on rural communities the primary concern in the return migration literature has been the effect on local economic development 5

differential economic opportunity transferability of skills and immigration to the united states and canada studies concerned with u s and canadian immigration after world war ii have been based on cross sectional data or on limited time series data and have stressed the importance of differential economic opportunity as a cause of migration in this study four vectors of variables are used to explain annual immigration to both the united states and canada 1962 1984 from a number of specific source countries economic opportunities transferability of skills level of economic development and political conditions and institutional controls that reflect the immigration policies of the two nations wage differentials several measures of skill transferability political conditions in source countries and the policy variables prove to be important determinants of u s and canadian immigration excerpt

on the dynamic instability of induced migration unemployment in a dual economy abstract previous attempts to integrate the todarian analysis of rural urban migration with the dual economy growth model have relied upon an essentially static version of the migration hypothesis inappropriate in a growth context in this paper it is shown that when a dynamic version of the hypothesis is used the steady state growth equilibrium whilst characterised by a positive unemployment rate typical of todarian models is unstable these results have policy implications which differ from those presented in the previous literature

immigration from poor to wealthy countries experience of the united states the u s experience with immigration from poor countries is examined using the results of two projects carried out by the national bureau of economic research questions considered include what determines the supply of immigrants how such immigrants fare in the u s job market and how this immigration affects the prospects of native born workers annotation

trade aid and migrations some basic policy issues the link between trade policy and international migration is explored using data from the united states and europe we conclude that restrictive trade policies in industrialised countries have most likely added to migration pressures we then turn to the broader question of the effects of income growth in the sending countries on the propensity to migrate we argue that in relatively poor countries an increase in income will be associated with higher migration flows for middle income countries however income growth will lead to lower migrations in the medium run therefore the relationship between development levels as measured by gdp per capita and the propensity to migrate follows an inverse u pattern econometric analysis of aggregate migration flows from southern europe provides considerable support for such conjecture excerpt

efficiency and distributional implications of global restrictions on labour mobility calculations and policy implications abstract in this paper a procedure for calculating the annual efficiency gains from various alternative changes in existing global immigration restrictions is presented along with an evaluation of impacts of wage rate changes on non migrating labour a simple methodology uses data on u s dollar gnp capita across countries to infer differences in the marginal productivity of labour both between countries and across major world trading areas two key assumptions used are that the worldwide labour supply is fixed and full employment occurs in all regions differences occuring in labour s marginal product across regions are assumed to arise because of barriers to inward mobility of labour in high wage countries when these are removed labour reallocates and efficiency gains occur while the calculations are based on contentious assumptions a striking feature is the size of the annual worldwide gains in some cases annual gains can easily exceed existing worldwide gnp generated in the presence of labour mobility restrictions while all gains do not accrue to ldc s the size of the gains nonetheless suggests that this issue may be much more important to these countries than other issues raised thus far in the north south debate the losses to labour already employed in high wage countries dramatize the incentives for labour unions in the developed world to oppose liberalization

economic growth and environmental degradation the environmental kuznets curve and sustainable development abstract in this paper we critically examine the concept of the environmental kuznets curve ekc it proposes that there is an inverted u shape relation between environmental degradation and income per capita so that eventually growth reduces the environmental impact of economic activity the concept is dependent on a model of the economy in which there is no feedback from the quality of the environment to production possibilities and in which trade has a neutral effect on environmental degradation the actual violation of these assumptions gives rise to fundamental problems in estimating the parameters of an ekc the paper identifies other econometric problems with estimates of the ekc and reviews a number of empirical studies the inference from some such ekc estimates that further development will reduce environmental degradation is dependent on the assumption that world per capita income is normally distributed when in fact median income is far below mean income we carry out simulations combining ekc estimates from the literature with world bank forecasts for economic growth for individual countries aggregating over countries to derive the global impact within the horizon of the bank s forecast 2025 global emissions of so 2 continue to increase forest loss stabilizes before the end of the period but tropical deforestation continues at a constant rate throughout the period

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

unemployment and the inter regional mobility of labour the relationship between unemployment and interregional labor migration in the united kingdom is explored using data from the labour force survey for 1984 and 1977 the authors conclude that the experience of unemployment increases the likelihood of migration and that households in areas of high unemployment are more likely to move they also find that during periods of higher overall unemployment migration propensities are reduced annotation

the mobility of labor and capital a study in international investment and labor flow list of tables acknowledgements introduction 1 foreign investment a neglected variable 2 the use of foreign workers 3 the new immigration 4 the globalization of production implications for labor migration 5 the rise of global cities and the new labor demand 6 the reconcentration of capital in the united states a new investment zone conclusion notes references index

the environmental kuznets curve and sustainability a panel data analysis abstract in recent years sustainability has represented one of the most important policy goals explored in the environmental kuznets curve ekc literature but related hypotheses performance measures and results continue to present a challenge the present paper contributes to this ongoing literature by studying two different ekc specifications for 10 middle east and north african mena countries over the period 1990 2010 using panel data methods for the first specification namely ekc we show that there is an inverted u shape relationship between environmental degradation and income while for the second specification namely modified ekc mekc we show that there is an inverted u shape relationship between sustainability and human development hd the relationships are shaped by other factors such as energy trade manufacture added value and the role of law more interestingly findings from the estimation show that ekc hypothesis hd and sustainability are crucial to build effective environmental policies

economic growth and atmospheric pollution in spain discussing the environmental kuznets curve hypothesis abstract the environmental kuznets curve ekc hypothesis posits an inverted u relationship between environmental pressure and per capita income recent research has examined this hypothesis for different pollutants in different countries despite certain empirical evidence showing that some specific environmental pressures have diminished in developed countries the hypothesis could not be generalized to the global relationship between economy and environment at all in this article we contribute to this debate analyzing the trends of annual emission flux of six atmospheric pollutants in spain the study presents evidence that there is not any correlation between higher income level and smaller emissions except for so2 whose evolution might be compatible with the ekc hypothesis the authors argue that the relationship between income level and diverse types of emissions depends on many factors thus it cannot be thought that economic growth by itself will solve environmental problems

the environmental kuznets curve semi parametrically revisited this paper re examines the existence of an environmental kuznets curve ekc across countries using a semi parametric regression estimator which places no restrictions on the functional form our results using cross country panel data on sulfur and carbon dioxide strongly suggest that the relationship between wealth and environmental degradation is not bell shaped as suggested by an ekc rather that there is a positive link for the very poorest countries and no clear relationship for richer countries

tourism development energy consumption and environmental kuznets curve trivariate analysis in the panel of developed and developing countries abstract the study investigates the relationship between economic growth carbon dioxide emissions tourism development energy demand domestic investment and health expenditures with an aim to test the validity of the environmental kuznets curve ekc hypothesis in the panel of three diversified world s region including east asia pacific european union and high income oecd and non oecd countries the study covers the period of last nine years i e 2005 2013 the study used the principal component analysis pca to construct tourism development index which is the amalgamation of number of tourists arrivals tourism receipts and international tourism expenditures the results validate the inverted u shaped relationship between carbon emissions and per capita income in the region the results further substantiate the following causal relationships i e i tourism induced carbon emissions ii energy induced emissions iii investment induced emissions iv growth led tourism v investment led tourism and vi health led tourism development in the region

growth in global materials use gdp and population during the 20th century the growing industrial metabolism is a major driver of global environmental change we present an assessment of the global use of materials since the beginning of the 20th century based on the conceptual and methodological principles of material flow accounting mfa on the grounds of published statistical data data compilations and estimation procedures for material flows not covered by international statistical sources we compiled a quantitative estimate of annual global extraction of biomass fossil energy carriers metal ores industrial minerals and construction minerals for the period 1900 to 2005 this period covers important phases of global industrialisation and economic growth the paper analyses the observed changes in the overall size and composition of global material flows in relation to the global economy population growth and primary energy consumption we show that during the last century global materials use increased 8 fold humanity currently uses almost 60 billion tons gt of materials per year in particular the period after wwii was characterized by rapid physical growth driven by both population and economic growth within this period there was a shift from the dominance of renewable biomass towards mineral materials materials use increased at a slower pace than the global economy but faster than world population as a consequence material intensity i e the amount of materials required per unit of gdp declined while materials use per capita doubled from 4 6 to 10 3 t cap yr the main material groups show different trajectories while biomass use hardly keeps up with population growth the mineral fractions grow at a rapid pace we show that increases in material productivity are mostly due to the slow growth of biomass use while they are much less pronounced for the mineral fractions so far there is no evidence that growth of global materials use is slowing down or might eventually decline and our results indicate that an increase in material productivity is a general feature of economic development

environmental kuznets curve in an open economy a bounds testing and causality analysis for tunisia the environmental kuznets curve hypothesis posits that in the early stages of economic growth environmental degradation and pollution increase however as a nation reaches a certain level of incom

the emergence of migration theory and a suggested new direction abstract the literature on internal labour migration is surveyed using a fourfold taxonomic scheme the potential migrant as presented in the existing literature can be viewed as a supplier of labour an investor in human capital and a consumer of regional amenities such as public goods the paper develops a fourth approach which treats the household rather than the individual as the migrating unit and which views the potential migrant as a producer of home produced commodities the continuities as well as the contrasts between the four approaches are discussed in the paper

unemployment and economic development during the past thirty five years opinions on unemployment have significantly influenced our thoughts about the process of economic development in low income countries the economic strategies appropriate for governments committed to accelerating that process and the best way for the rich nations to assist in that endeavour which of the many and sometimes conflicting opinions of economists regarding the magnitude causes and costs of unemployment in ldcs reigns as the conventional wisdom at any given time is not determined by purely scientific criteria the emergence of a particular set of hypotheses as dominant may be strongly influenced by the attitudes and political preoccupations of observers as well

self selection and the earnings of immigrants comment in a recent article in this review borias 1987 george borjas uses a standard model of self selection to demonstrate that immigrants in the united states may not necessarily be positively selected as is commonly assumed borjas empirical results based on u s census micro data merged with country of origin characteristics for 41 sending countries however do not provide clear or consistent results with respect to the immigration selection issue although they do confirm earlier findings that the characteristics of the countries of origin of u s immigrants explain a substantial proportion of the differences in their economic status jasso and rosenzweig 1986b the purpose of this note is to show that borjas results are themselves subject to biases due to additional processes of self selection in particular his inconclusive findings with respect to immigration selectivity arise from the use of a choice based sample enlargement of his highly selective sample of countries based on the number of foreign born in the united states yields results that appear to conform much more closely and consistently to conventional wisdom namely that the united states appears to attract those persons with above average skills we also provide evidence that changes in the earnings of aggregate immigrant entry cohorts used by borjas to measure the assimilation of immigrants reflect another evidently important selection process namely selective emigration the effects of country characteristics on the wages of the foreign born at entry immigration selectivity are thus not comparable to the effects of such variables on the changes in the characteristics of an immigrant cohort over time emigration selectivity the effects via immigration self selection of country of origin characteristics on the quality q of immigrants who migrate to a destination country is neatly summarized by borjas in his equation 12 with unobservables determining earnings normally distributed the expected quality of immigrants in the united states is given by

assimilation changes in cohort quality and the earnings of immigrants this paper reexamines the empirical basis for two facts that seem to be found in most cross section studies of immigrant earnings 1 the earnings of immigrants grow rapidly as they assimilate into the united states and 2 this rapid growth leads to many immigrants overtaking the earnings of the natives within 10 15 years after immigration using the 1970 and 1980 u s censuses this paper studies the earnings growth experienced by specific immigrant cohorts during the period 1970 80 it is found that within cohort growth is significantly smaller than the growth predicted by cross section regressions for most immigrant groups this differential is consistent with the hypothesis that there has been a secular decline in the quality of immigrants admitted to the united states

empirical study on the environmental kuznets curve for co2 in france the role of nuclear energy this paper attempts to estimate the environmental kuznets curve ekc in the case of france by taking the role of nuclear energy in electricity production into account we adopt the autoregressive distributed lag ardl approach to cointegration as the estimation method additionally we examine the stability of the estimated models and investigate the granger causality relationships between the variables in the system the results from our estimation provide evidence supporting the ekc hypothesis and the estimated models are shown to be stable over the sample period the uni direction running from other variables to co2 emissions are confirmed from the casualty tests specifically the uni directional causality relationship running from nuclear energy to co2 emissions statistically provides evidence on the important role of nuclear energy in reducing co2 emissions

migration and the public sector a survey charney a h 1993 migration and the public sector a survey reg studies 27 3133 326 a review of the existing literature on human migration reveals relatively few studies that explicitly examine the relationships between public policy decisions and human migration flows the surveyed literature includes studies of national policies such as defence spending migration subsidies and intergovernmental transfers as well as sub national policies such as welfare and unemployment benefits state and local taxes education and other public services suggestions for incorporating public sector information into existing migration analysis frameworks and further areas of research are provided charney a h 1993 la migration et le secteur public une etude reg studies 27 313 326 faire la critique de la documentation disponible sur la migration humaine laisse voir que rares sont les etudes traitant explicitement des rapports entre la politique d etat et les flux migratoires la documentation examinee c

rural urban migration in economic development abstract this paper provides a review of the theoretical literature on rural urban migration in contemporary ldcs the paper begins with a brief discussion of the lewis model before going on to discuss the todaro and the harris todaro models and the large literature which these models have spawned the question of job search in the context of migration and the role of family members in migration decisions are considered next the paper then takes a closer look at the informal sector and also sets out alternative migration functions to the ones usually employed in the literature the paper concludes with a brief note on some of the important implications arising from our study

an assessment of the human capital content of international migrants an application to us immigration mcdowell j m and singell l d jr 1993 an assessment of the human capital content of international migrants an application to us immigration reg studies 27 351 363 numerous studies have examined the flow of international migrants generally these studies measure the extent or magnitude of international migration by use of a simple numerical count this paper extends this analysis by providing a methodology for adding an economic dimension to the measure of the magnitude of international migration an earnings equation approach is used to attach an economic value to immigration applying our methodology to us immigration we find considerable variation across source regions in the value of immigrants moreover we find that simply comparing initial earnings without controlling for differences in the characteristics and migration patterns of immigrants from the various source regions can misrepresent the relative earnings potential or value of migrants mcdowell j m et singell l d jr 1993 un

international trade and labor migration a theory of the relationship between international trade and labor mobility is developed that takes into account five characteristics of such migration including its temporary nature differences between migrant and native labor the acceptance of unpredictable conditions of employment by migrant labor the ready availability of further labor resources and international capital mobility particular attention is paid to the role of international labor migration in helping to insulate native populations from the rigors of industrial fluctuations and in helping to preserve import competing industries that would have succumbed without the availability of cheap imported labor

immigrant earnings relative to what the importance of earnings function specification and comparison points immigrant relative earnings estimates are sensitive to the choice of comparison point and the specification of earnings non sample mean comparisons borjas 1985 understate relative earnings simple earnings specifications linear education quadratic experience overstate relative earnings for both poorly and well educated immigrants specifications which ignore omitted variables understate the relative earnings of poorly educated immigrants and overstate those of well educated ones although measures of assimilation and changes in immigrant quality are insensitive to earnings specification they indicate strong earnings growth for post 1964 immigrants an overall decrease in immigrant quality and an increase in mexican immigrant quality

migration amongst the batswana the present study undertakes analysis of the effects of employment probabilities and wage alternatives on migration decisions in the context of botswana adopting micro level data both to estimate a multinomial migration function and to develop prediction equations for wages and likelihood of employment data are from the 1978 1979 national migration survey the factors that influence rural batswana adults to remain at home migrate to town on a short or long term basis move to another rural area or emigrate to south africa are examined consideration is given to the effects of employment alternatives on the rate of internal migration and the selectivity of movements with respect to personal household and locational factors excerpt

labor migration in europe experiences from germany after unification abstract this paper examines the effects of diverging economic conditions on labor migration within reunified germany we employ a life cycle model with consumers sovereignty regarding choice of location to derive estimates of labor migration in future periods heterogeneity of individuals is explicitly taken into account by adopting a random utility approach due to insufficient data on east west migration the results are only illustrative and have the character of educated guesstimates within limits our predictions can serve as rough indicators of potential future migration between eastern and western europe

international migration versus foreign investment in the presence of unemployment abstract this paper extends the standard two factor one good model of international factor movements to include unemployment due to a minimum income guarantee within the capital abundant country from this country s perspective we establish important departures from previous full employment results most notably our analysis shows that 1 free factor mobility is worse than no mobility 2 the optimal degree of labour migration is zero and 3 national welfare can always be maximized by an optimal flow of capital the analysis is then extended to examine 1 illegal migration 2 subsidization of employment and 3 alternative views of unemployment

immigrants in the u s labor market 1940 80 this paper explores the extent and causes of the decline in immigrant skills in the united states during the postwar period prior to 1965 immigration to the united states was guided by the national origins quota system this visa allocation system awarded visas to countries based on the representation of the national origin group in the u s population as of 1920 the 1965 amendments abolished the national origins formula thus redistributing visas across source countries and established a system where visas are mainly given to relatives of u s citizens or residents the empirical analysis shows that a single factor the changing national origin mix of the immigrant flow is mainly responsible for the decline in immigrant skills excerpt

reassessing the environmental kuznets curve for co2 emissions a robustness exercise the number of studies seeking to empirically characterize the reduced form relationship between a country economic growth and the quantity of pollutants produced in the process has recently increased significantly in several cases researchers have found evidence pointing to an inverted u benvironmental kuznetsq curve in the case of co2 however the evidence is at best mixed in this paper we reconsider that evidence by assessing how robust it is when the analysis is conducted in a different parametric setup and when using alternative emissions data from the international energy agency relative to the literature our contribution can be viewed as a robustness exercise in these two respects the econometric results lead to two conclusions firstly published evidence on the ekc does not appear to depend upon the source of the data at least as far as carbon dioxide is concerned secondly when an alternative functional form is employed there is evidence of an inverted u pattern for the group of oecd countries with reasonable turning point regardless of the data set employed not so for non oecd countries as the ekc is basically increasing slowly concave according to the iea data and more bellshaped in the case of cdiac data d 2005 elsevier b v all rights reserved

a further inquiry into the pollution haven hypothesis and the environmental kuznets curve abstract empirical research on the relationship between economic growth and its impact on the environment often tests the environmental kuznets curve ekc a hypothesis that rising national output leads to increases in pollution emissions until an economy reaches a certain size and decreases thereafter this paper addresses a branch of ekc literature focused on the role international trade plays in shaping this relationship in particular we test the pollution haven hypothesis which posits that emission reductions observed in developed nations are partly the result of shifting dirty production to developing nations with lax environmental standards we estimate ekcs for seven oft studied pollutants and find little evidence that pollution havens play a significant role in shaping the ekc we also find that confidence intervals around ekc turning points are very wide often including values well above the range of the data this leads us to be skeptical of the optimistic view that economic growth naturally leads to improvements in environmental quality

job search and immigrant assimilation an earnings frontier approach this study examines labor market assimilation by measuring the information utilized by immigrants during job search assimilation is assumed to occur whenever such information increases with length of residence in the united states and repeated job searches the authors assert that information utilized during job search reduces differentials between actual and potential maximum attainable earnings coauthors are henry w herzog jr richard a hofler and alan m schlottmann copyright 1992 by mit press

self selection and the earnings of immigrants reply my 1987 paper addresses a central question in the economics of immigration who are the immigrants it has been traditionally assumed that immigrants are positively selected that is immigrants are more skilled on average than the typical person in the source country one contribution of my theoretical analysis was to show that this assumption is not necessarily consistent with wealth maximizing behavior in fact under some conditions the immigrant flow may be negatively selected my original study focused only on the selection bias caused by immigrants endogenously sorting themselves out of the source country s population 2 guillermina jasso and mark rosenzweig point out that i ignored other types of selection biases in both my theoretical development and empirical framework these additional biases are due to 1 the selective emigration of the foreign born in the united states and 2 the fact that my empirical work was limited to immigrants originating in 41 source countries regarding the first of these points jasso and rosenzweig restate the well known fact that emigration or return migration is an important characteristic of the immigrant experience robert warren and jennifer marks peck 1980 for instance estimate that perhaps as many as 30 percent of immigrants leave the united states within a decade or two after their arrival jasso and rosenzweig however do not examine systematically how the selective emigration of the foreign born affects either the theory or the empirical analysis in essence their criticism simply asserts that selective emigration is likely to cause problems my 1987 paper however already made note of that fact p 538 moreover the biases caused by emigration were an integral part of my earlier critique of the econometric methodology used by most studies of immigrant earnings determination borjas 1985 pp 466 67 what is obviously needed is the generalization of both my theoretical and empirical frameworks to account for the emigration of the foreign born such a generalization however is not provided by jasso and rosenzweig and does not yet exist 3 the second point made by jasso and rosenzweig deals with the empirical results presented in my paper because i limited my analysis to immigrants originating in 41 countries the sample is not representative and serious selection biases may be at work obviously it is always better to use a more representative sample in the empirical analysis the data were limited to 41 source countries because i was concerned not only with immigrant wage levels but also with immigrant wage growth as recorded by the 2 10

policy comparisons with an agglomeration effects augmented dual economy model abstract in this paper we incorporate urban agglomeration economies as a labor pull factor in an analysis of dual labor markets in ldcs in particular the equilibrium city size approach to urban growth and the expected income approach to rural to urban migration are synthesized making it possible to generalize results that hitherto were approach specific with the aid of a simulation based on a well specified model we exploit this synthesis to rank subsidy policies our results highlight the constructive role played by urbanization in economic development and structural change

macroeconomic influences on migration milne w j 1993 macroeconomic influences on migration reg studies 27 365 373 the changing composition and magnitude of internal migration flows are of critical importance in determining the potential economic growth of a region yet there can be little doubt that the business cycle has a significant influence on migration flows and propensities this paper explores the effects of macroeconomic events on migration through an examination of the extent of the influence of the national and regional business cycle on the in out and net migration rates milne w j 1993 les influences macro economiques sur la migration reg studies 27 365 373 la variation de la structure et de l ampleur des flux migratoires au sein d un pays joue un role primordial dans la determination de la croissance economqiue potentielle d une region toujours est il que le cycle economique influe sensiblement sur les flux et les propensites migratoires cet article cherche a examiner les effets des evenements macro economi

energy consumption economic growth and co2 emissions in middle east and north african countries this article extends the recent findings of liu 2005 ang 2007 apergis et al 2009 and payne 2010 by implementing recent bootstrap panel unit root tests and cointegration techniques to investigate the relationship between carbon dioxide emissions energy consumption and real gdp for 12 middle east and north african countries mena over the period 1981 2005 our results show that in the long run energy consumption has a positive significant impact on co2 emissions more interestingly we show that real gdp exhibits a quadratic relationship with co2 emissions for the region as a whole however although the estimated long run coefficients of income and its square satisfy the ekc hypothesis in most studied countries the turning points are very low in some cases and very high in other cases hence providing poor evidence in support of the ekc hypothesis co2 emission reductions per capita have been achieved in the mena region even while the region exhibited economic growth over the period 1981 2005 the econometric relationships derived in this paper suggest that future reductions in co2 emissions per capita might be achieved at the same time as gdp per capita in the mena region continues to grow

immigration and welfare magnets this article investigates if the location choices made by immigrants when they arrive in the united states are influenced by the interstate dispersion in welfare benefits income maximizing behavior implies that foreign born welfare recipients unlike their native born counterparts may be clustered in the states that offer the highest benefits the empirical analysis indicates that immigrant welfare recipients are indeed more heavily clustered in high benefit states than the immigrants who do not receive welfare or than natives as a result the welfare participation rate of immigrants is much more sensitive to changes in welfare benefits than that of natives