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

the gender earnings differential in the russian transition economy using data from the russia longitudinal monitoring survey rlms the first nationally representative household survey in the russian federation the author examines the gender earnings differentia

the determinants of teenage schooling in jamaica rich vs poor females vs males the belief that schooling is an important way to reduce poverty and increase social mobility has lead to large government sponsored investment in education in developing countries jamaica has an impressive literacy and primary enrolment rate yet the ability of its secondary school system to enhance social mobility and reduce inequality is limited regression results from a nationally representative household survey show that family background variables parental education and income are important determinants of secondary school enrolment and income is the single most important determinant of enrolment in an elite high school with the impact being twice as large for females part of the income effect is shown to represent unobserved community heterogeneity one conclusion is that the recent cost sharing education policy of the jamaican government if applied selectively to the elite academic high schools will fall disproportionately upon rich households

the north south divide questions of existence and stability this paper investigates the relationship between regional earnings and unemployment by use of information primarily from the general household surveys of 1975 and 1982 conventional earnings functions are augmented to capture the effects of the level and duration of unemployment and of regional differences in living costs in common with previous studies the authors find personal characteristics and the occupation or industry of employment to be important in earnings determination in this paper however they generally find that although higher unemployment is associated with reduced regional earnings ceteris paribus long term unemployment has little influence in regional earnings determination copyright 1990 by royal economic society

the use of quantile regressions in estimating gender wage differentials a case study of the philippines quantile regressions are used to analyse the size components and nature of the gender earnings differentials as well as the returns to education by gender in the philippines over the entire conditional distribution of earnings using data from the 1999 apis survey this approach allows more focused conclusions about the nature of gender earnings differentials incorporating the quantile regression approach to the oaxaca blinder decomposition allows the localization of gender discrimination to particular quantiles of the earnings distribution and permits more targeted policy intervention

a bayesian approach to aggregation in demand systems smoothing with perfect substitution priors demand analysis requires aggregation of commodities some are imposed at the data collection level leaving some for the estimation level when data are collected the implicit assumption underlying the aggregation is perfect substitutability one gallon of gasoline is viewed by consumers as equivalent to another gallon hence the two are added together while such aggregation can be carried out further by the data analyst it is difficult to incorporate perfect substitutability into the estimation of direct demand systems perfect substitution in that context implies discontinuous demand functions which are not nested within standard empirical demand systems perfect substitution is much more easily handled in a system of inverse demands though an empirical method to impose perfect substitutability in an inverse demand system has not previously appeared in the literature in this article we develop such a method which allows perfect substitutability to be imposed as a prior restriction we use leame

more on identification in detailed wage decompositions wage decompositions are often used to decompose wage differentials of two demographic groups into differences in characteristics and differences in returns to those characteristics the latter part is used as an estimate of the degree of discrimination a problem with this approach is that the contributions of individual dummy variables to the wage decomposition are not identified this note proposes a simple solution to the identification problem the solution is illustrated with an empirical application to spanish labor market data

employment discrimination in northern ireland and the good friday agreement abstract the paper analyses employment differences between northern ireland s catholics and protestants and examines whether the good friday agreement signed in 1998 was followed by an improvement in the relative position of catholics

evaluating the evidence on union employment and wages using current population survey data for the years 1973 86 this study tests the hypothesis that the steep decline of union employment shares since 1973 is related to increases in union wages relative to nonunion wages the authors show that although the aggregate union wage premium has changed little since 1973 some industry specific premiums have risen substantially and the industries with the rising premiums are those experiencing declines in union employment shares the increase in the premium explains from 21 to 64 of the decline in union shares depending on the equation specification the paper also presents a detailed set of union wage premiums and employment shares for the sample period

regulatory attitudes and environmental innovation in a model combining internal and external r d the extent to which environmental regulatory institutions are either green or brown impacts not just the intensity of regulation at any moment but also the incentives for the development of new pollution control technologies we set up a strategic model of r d in which a polluter can deploy technologies developed in house or license technologies developed by specialist outsiders an eco industry polluters exert r d effort and may even develop redundant technologies to improve the terms on which they procure technology from outside we find that while regulatory bias has an ambiguous impact on the best available technology strategic delegation to systematically biased regulators can improve social welfare

trade liberalization environmental policy and welfare we analyze how trade liberalization affects environmental policies in the context of bilateral trade and imperfect competition instead of looking at the strategic distortions that trade introduces in environmental policies the focus of most existing studies we analyze how these distortions change in the face of a bilateral reduction in tariffs the incentives to distort environmental protection may be reduced by this move as a consequence environmental policies may be more stringent also welfare is likely and for some instruments certain to increase

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

on decomposing the wage gap a critical comment on blinder s method many studies have found that the impact of schooling on earnings is greater for females than for males despite the fact that females tend to earn less both absolutely and controlling for personal characteristics this study investigates possible

unemployment and the social safety net during transitions to a market economy evidence from the czech and slovak republics the authors investigate the remarkably short unemployment spells in the czech republic compared to slovakia and other central and east european economies they estimate hazard functions and find that 40 to 5o percent of the difference in unemployment durations between the two republics is accounted for by differences in demographics and demand conditions the remainder is explained by differences in coefficients proxying the behavior of firms individuals and institutions in both republics the unemployment compensation system has a moderately negative effect on the exit rate from unemployment policymakers hence have latitude in providing adequate social safety nets without jeopardizing efficiency copyright 1998 by american economic association

unequal assignment and unequal promotion in job ladders in this study gender differentials in professional status attainment are analyzed in the theoretical literature unequal treatment of females is often rationalized by their higher probability of quitting to test this hypothesis empirically we use data from the austrian microcensus and find that neither the risk of childbearing nor different productive characteristics can explain the crowding of females in lower hierarchical positions females have to fulfill higher ability standards to be promoted work experience is not rewarded in the same manner as it is for men

a simple solution to the identification problem in detailed wage decompositions i introduction oaxaca and ransom 1999 show that the oaxaca decomposition suffers from one nagging conceptual problem the detailed oaxaca decomposition of wage differentials is not invariant to the choice of reference group when dummy variables are used 1 that is if one uses dummy variable s then the detailed coefficients effect attributed to dummy variables is not invariant to the choice of the omitted group s 2 this invariance or identification problem is well known to labor economists and has plagued decomposition and discrimination analysis for a long time 3 this article proposes a simple and practical solution to this identification invariance problem the solution is based on the intuitive idea that if alternative reference groups yield different estimates of the characteristics and coefficients effects for each individual variable then it is natural to obtain estimates of the two effects for every possible specification of the reference groups and take the average of the estimates of the two effects with various reference groups as the true contributions of individual variables to wage differentials a close inspection shows that averaging the two effects in the decomposition equation with varying reference groups the averaging approach is equivalent to finding average estimates of constant and dummy variables in wage equations with varying reference groups and then using the average estimates to calculate the oaxaca decomposition equation researchers may react a bit negatively to this suggestion because it could be quite cumbersome and tedious to estimate wage equations permuting the choice of reference groups this article shows that there is no need to estimate multiple wage equations one set of regression estimates is sufficient to resolve the identification problem in the detailed decompositions that is the average of the estimates with varying reference groups can be easily calculated by using only one set of regression estimates with any specific reference group s the identification problem for the detailed decomposition disappears once the contribution of the dummy variables and the constant in the regression equations are identified 4 ii identification problem and invariant decomposition an illustration to understand what the identification problem in the detailed wage decomposition is i will first illustrate the problem with a simple example suppose that there are three categories and the regression equation has only a constant and two dummy variables on the right hand side where the reference group is the first category 5 that is 1 y sub i alpha sub i 3 summation over k 2 d sub ki beta sub ki e sub i where y is log wages and i a or b for two comparison groups coefficients for two dummy variables taking category one as the reference group are estimated using ordinary least squares ols regression and are reported in the second column of table 1 for sample a and for sample b note that the coefficient of the reference group category 1 is restricted to zero similarly i may change my reference group specification and estimate the wage equation two more times the estimates taking category 2 or 3 as the reference group are reported on the next two columns because i have three sets of estimates with varying reference groups i may decompose the wage differentials 0 15 0 76 0 61 into characteristics and coefficients effects three times the characteristics effect delta sub x 1 and coefficients effects delta sub beta 1 are specified as follows when category 1 is the reference group delta sub x 1 summation sup 3 sub k 2 bar d sub ka bar d sub kb beta sub kb and delta sub beta 1 alpha sub a alpha sub b summation sup 3 sub k 2 bar d sub ka beta sub ka beta sub kb

bootstrapping statistical inferences of decomposition methods for gender earnings differentials applying the standard bootstrapping technique with corrections for heteroskedasticity for a sample of the 1997 urban household survey in china the present article attempts to test 1 whether the commonly used decomposition methods for gender earnings differentials give significantly different results and 2 whether the explained component is significantly different from the unexplained component which is commonly referred to as discrimination within each decomposition method based on a national data set the empirical results indicated some significant differences in both tests the implication of the results is that the proposed bootstrapping technique can be regarded as a guideline on applying which approach to decompose gender earnings differentials among different methods without losing important information and on evaluating the relative importance of the decomposition components for any chosen method

detecting and removing discrimination under equal opportunities policies abstract this paper surveys part of the recent voluminous literature on the economics of discrimination focusing on two key questions first how should discrimination be measured and can in fact unambiguous estimates be derived as the basis for detecting where discrimination is present and setting in train measures to eliminate it second to what extent has the implementation of equal opportunities legislation improved the relative standing of women and minority workers in the labour force this section includes a discussion of the likely effects of recent changes in the law such as the equal value amendment in the uk or the introduction of comparable worth in the usa the survey concludes that our ability to detect discrimination at all precisely is still rudimentary and consequently policy measures are likely to be inefficient for this reason

a bayesian approach to decomposing wage differentials abstract we decompose wage differentials using a bayesian monte carlo markov chain method this method makes it easy to obtain the posterior distributions of the characteristics and coefficients effects used to test the significance of the two effects

intertemporal market effect on gender earnings differentials lawyers in canada 1970 80 the conventional methodology for decomposition of cross sectional earnings differentials is extended to include a market effect on intertemporal changes in earnings and to analyse the changes in gender differentials over time the integrated cross sectional and intertemporal methodology is illustrated by a decomposition of the change in the earnings differential that occurred during the 1970s between male and female lawyers in canada an unprecedented rate of growth in the supply of lawyers during the 1970s in canada was associated with changes in the gender earnings differential in the legal profession this rapid supply growth had an almost negligible net impact on female earnings but a negative impact of 15 on the male earnings this explains the narrowing of the earnings differential by almost 30 over the decade although three fifths of the gender differential in 1970 and half of the differential in 1980 were attributable to the differences in the characteristics of the two groups these chang

the gender wage gap among recent post secondary graduates in canada a distributional approach using the national graduates survey we examine the trends in the gender wage gap among recent post secondary graduates in canada between 1988 and 2007 female graduates earn on average 6 14 less than males during the period two to five years after graduation decompositions show that observable personal characteristics and job attributes can explain only a small portion of the wage gap we also find that men earn more than women at every point of the distribution interestingly the wage difference shrank in the lower half of the distribution in recent years while it increased in the upper half l ecart salarial entre les sexes chez les nouveaux diplomes postsecondaires une approche distributionnelle a l aide de l enquete nationale aupres des diplomes nous examinons les tendances dans l ecart salarial entre les sexes chez les nouveaux diplomes postsecondaires au canada entre 1988 et 2007 les femmes diplomees gagnent en moyenne de 6 a 14 moins que les hommes durant les 2 a 5 ans suivant l obtention du diplome des decompositions montrent que les caracteristiques personnelles et les attributs de l emploi observables ne peuvent expliquer qu une petite partie de l ecart salarial nous trouvons aussi que les hommes touchent plus que les femmes a chaque point de la distribution salariale de maniere interessante la difference de salaire a diminue dans la moitie inferieure de la distribution lors des annees recentes alors qu elle a augmente dans la moitie superieure

pollution abatement subsidies and the eco industry this paper considers the combination of pollution taxes and abatement subsidies when some polluting firms procure their abatement goods and services from an oligopolistic eco industry the regulator must here cope with two simultaneous price distortions one that comes from pollution and the other which is caused by the eco industry s market power in this context we show that taxing emissions while subsidizing polluters abatement efforts cannot lead to first best but the opposite occurs provided it is the eco industry s output which is subsidized when public transfers also create distortions welfare can be higher if the regulator uses only an emission tax but subsidizing abatement suppliers while taxing emissions remains optimal when the eco industry is concentrated

sex related wage differentials and women s interrupted labor careers the chicken or the egg wage differentials between men and women are often attributed to differences in on the job training the lower investment of women being explained by their plans to interrupt their careers for family reasons career interruptions however are often explained by low wages to trace this interrelationship i adopt a simultaneous equations approach trying to explain wages planned separations on the job training and the skill intensity of the job simultaneously skill intensity is found to be a key variable in the explanation of the wage differential traditional theory is hard pressed to explain the sex related differences in this variable

firm level productivity spillovers in china s chemical industry a spatial hausman taylor approach this paper assesses the role of intra sectoral spillovers in total factor productivity across chinese producers in the chemical industry we use a rich panel data set of 12 552 firms observed over the period 2004 2006 and model output by the firm as a function of skilled and unskilled labor capital materials and total factor productivity which is broadly defined the latter is a composite of observable factors such as export market participation foreign as well as public ownership the extent of accumulated intangible assets and unobservable total factor productivity despite the richness of our data set it suffers from the lack of time variation in the number of skilled workers as well as in the variable indicating public ownership we introduce spatial spillovers in total factor productivity through contextual effects of observable variables as well as spatial dependence of the disturbances we extend the hausman and taylor 1981 estimator to account for spatial correlation in the error term this approach permits estimating the effect of time invariant variables which are wiped out by the fixed effects estimator while the original hausman and taylor 1981 estimator assumes homoskedastic error components we provide spatial variants that allow for both homoskedasticity and heteroskedasticity monte carlo results show that our estimation procedure performs well in small samples we find evidence of positive spillovers across chemical manufacturers and a large and significant detrimental effect of public ownership on total factor productivity

born in britain how are native ethnic minorities faring in the british labour market in spite of the 40 years that have passed since legislation was first introduced to combat racial discrimination british born ethnic minorities fare little better than their immigrant parents in the uk labour market

the trend in the male female wage gap in the united states despite the rise in the feminist movement the enactment of equal opportunity legislation and the rapid increase in women s labor force participation a substantial sex differential in wages has persisted in the united states for at least 4 decades measured by hourly earnings of year round workers this wage gap was 31 in 1955 widened to a 35 37 range by the 1960s and early 1970s and then narrowed to 33 by 1982 this paper examines the extent to which changes in the characteristics of men and women in the labor force and other factors can account for the observed pattern the main finding is that increases in women s labor force participation were initially associated with a declining skill level of employed women relative to employed men where skill is measured by years of schooling and job tenure more recently the work experience of employed women has been increasing which helps account for the recent narrowing trend in the wage gap during the 1970s the wage gap probably woul have narrowed m

pollution policy and trade liberalization of environmental goods during the doha round at the world trade organization reductions in trade barriers on environmental goods eg were put forward as a means of helping developed and developing countries alike deal with current environmental problems we examine the potential effectiveness of such a strategy in a developing country that imports all its consumption of eg from an imperfectly competitive foreign eco industry we point out that trade liberalization of eg might in fact lead to less stringent pollution taxes which can result in an actual rise in pollution levels we then show that the environmental effectiveness objective of this trade reform can be achieved when the regulator uses quantitative abatement standards as an alternative pollution policy instrument however this environmental achievement comes at the expense of social welfare

rates of return to degrees across british regions o leary n c and sloane p j rates of return to degrees across british regions regional studies earlier papers have found considerable heterogeneity in the returns to degrees in relation to subjects of study degree classification and higher education institution this paper examines heterogeneity of returns across british regions using the labour force survey it finds substantial regional variations in the financial rewards available to graduates with much higher returns in london and the south east than elsewhere adjusting for regional differences in the cost of living narrows such differences considerably decompositional analysis suggests that coefficient effects dominate composition effects consistent with agglomeration and productivity spillover effects being important o leary n c et sloane p j le taux de rendement des diplomes universitaires a travers les regions de la grande bretagne regional studies des articles anterieures ont trouve que le rendement des diplomes universitaires pa

vertical structure and strategic environmental trade policy abstract the idea that environmental trade policy can be used to achieve competitive advantage in international markets has important implications for the way we conceive free trade this paper considers strategic environmental policy in a model that makes explicit the vertical structure that supports production of the traded good including intranational vertical relationships in the analysis of strategic environmental trade policy has substantial qualitative effects when vertical contracts are allowed the optimal policy to levy on a polluting input under both quantity and price competition in the international market is the pigouvian tax

panel estimates of the earnings gap in norway do female immigrants experience a double earnings penalty this study explores the possibility that being both a female and an immigrant will impose an earnings disadvantage on immigrant women in norway well known techniques are used to decompose the earnings gap between norwegian men and immigrant women into portions attributable to productivity differentials portions attributable to a gender effect and portions attributable to an ethnic effect the analysis supports the following conclusions first there is evidence of a double negative effect on female immigrant earnings second gender effect is more important than ethnic effect finally the discrimination estimates are robust to the alternative methods used in decomposing norwegian men immigrant women earnings gap

union membership in the united states 1973 1981 this paper reports estimates of union membership gathered from may current population surveys from 1973 to 1981 the authors present data by occupation industry selected states and smsas race gender and educational attainment the paper both extends and differs from that by freeman and medoff which presents unionism estimates for the private sector for 1968 75 to facilitate longitudinal analysis this paper reports three year moving averages of occupational and industry data and annual estimates of demographic classifications the data include public sector as well as private sector workers and they exclude workers not covered by the national labor relations act also the authors provide only union membership estimates not estimates on workers covered by union contracts this paper suggests that the percentage of all workers that are unionized in the united states remained fairly constant over the 1973 81 period

why is poverty so high among afro brazilians a decomposition analysis of the racial poverty gap this study aimed to identify the major factors underlying the large discrepancy in poverty levels between two brazilian racial groups whites and afro brazilians we performed an oaxaca blinder type decomposition for nonlinear regressions in order to quantify the extent to which differences in observed geographic sociodemographic and labor characteristics characteristics effect account for this difference the remaining unexplained part coefficients effect provides evidence on how these characteristics differentially impact on the risk of poverty in each group a detailed decomposition of both effects allows the individual contribution of each characteristic to be determined our results show that the characteristics effect explains a large part of the discrepancy in poverty levels with education and labor variables of household members explaining at least one half of the effect and geographic and demographic variables accounting for the remainder however the unexplained part that remains significant has increased in importance in recent last years and probably results from unequal access to high quality education and the persistence of discrimination against colored workers in the labor market

unconditional quantile regressions wage growth and inequality in the philippines 2001 2006 the contribution of covariates i implement a two stage procedure to estimate the components of real wage change in the philippines along the wage distribution from 2001 to 2006 as well as the contribution of individual covariates to each component the methodology is based on re centred influence functions rif as suggested by firpo et al 2009 the advantage of this methodology is that it not only decomposes the unconditional wage change at any quantile of the wage distribution but also allows the characterization of the contribution of any single covariate on each component i find that real earnings of males in the philippines declined and the decline along the earnings distribution is generally higher at higher deciles for all males and higher at lower deciles in manila decomposition results are driven by the wage structure component while the composition effect is small and generally positive with education as the main contributor within the wage structure effect the main determinants are associated with changes in the r

distributional changes in the gender wage gap using panel study of income dynamics psid data the authors analyze changes in wage differentials between white men and women over time and across the entire wage distribution the authors decompose distributional changes in the gender wage gap to assess the contribution of observed characteristics measuring individual productivity they find that the gender wage gap narrowed by 16 at the lowest decile and by less than 5 at the highest decile the decomposition results indicate that changes in the gender wage gap are mainly attributable to changes in educational attainment at the top of the wage distribution with a sizable part due to work history changes at the bottom the findings further reveal that the accuracy of the results depends on the direction in which the decompositions are performed

union certification success under voting versus card check procedures evidence from british columbia 1978 1998 the author estimates the impact of compulsory election laws on certification success using data on over 6 500 private sector certifications from british columbia over the years 1978 98 a unique quasi experimental design is used by exploiting two changes in the union recognition law first in 1984 the introduction of mandatory elections and second in 1993 the repeal of elections and their replacement by the original card check procedure the author also estimates the effectiveness of management opposition tactics across union recognition regimes success rates declined by an average of 19 percentage points during the voting regime and then increased by about the same amount when card checks were re instituted the results indicate that the mandatory election law can account for virtually the entire decline in addition the findings suggest that management opposition was twice as effective under elections as under card checks

trade in environmental goods evidences from an analysis using elasticities of trade costs negotiations on the liberalization of environmental goods egs and services within the wto doha round mandated in november 2001 are facing specific challenges conflicting interests and differing perceptions of the benefits of increased trade in egs were reflected in different approaches proposed for determining egs using import data of 34 organisation for economic co operation and development oecd member countries and from a sample of 167 countries from 1995 to 2012 we discuss the trade effect of reducing barriers on egs we analyze the lists of egs proposed by the asia pacific economic cooperation and oecd using a translog gravity model we found that removing tariff barriers for egs will have a modest impact because for the biggest importers and exporters elasticities of trade costs are very low while for most trading relationships they are very high making it difficult for exporters to maintain their markets overall our results suggest that because of their substantial effect on international trade future negotiations on egs should also address the issues of standards and nontariff barriers

environmental taxation and vertical cournot oligopolies how eco industries matter this article specifies what an optimal pollution tax should be when dealing with a vertical cournot oligopoly polluting firms sell final goods to consumers and outsource their abatement activities to an environment industry it is assumed that both markets are imperfectly competitive thus the tax is a single instrument used to regulate three sorts of distortions one negative externality and two restrictions in production consequently the optimal tax rate is the result of a trade off that depends on the firms market power along the vertical structure a detailed analysis of cournot nash equilibria in both markets is also performed in this context the efficiency of abatement activities plays a key role it gives a new understanding to the necessary conditions for the emergence of an eco industrial sector

evolution of the gender earnings gap among canadian university graduates this paper reports the results of an empirical analysis of the gender earnings gap among recent canadian bachelor s level university graduates the overall gap as of two years leaving university narrowed significantly across successive cohorts of graduates but widened significantly from two to five years out for all groups differences in the explanatory variables explain account for between 40 and essentially the entire gap across the different periods this portion rising from two to five years out and across cohorts by the final group all of the gap is thus explained at the two year point in time and most of it is explained at the five year mark meaning that labour market returns measured in this manner are largely gender neutral for the last group of graduates hours of work is the single most important influence while past work experience job characteristics family status and province of residence and language have smaller and more mixed effects

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

strategic environmental policy clean technologies and the learning curve in the political discussion it is often emphasized that the environmental service industry which produces a clean factor of production benefits from an early and strong environmental policy this is especially likely if the costs of production are decreasing over time due to learning curve effects surprisingly the environmental service industry has not been integrated into the theory of strategic environmental policy yet our main question is whether a national leadership in environmental policy can pay off if profits of the environmental service industry are taken into account we consider a two period model with one firm in each country competing on a third market emissions can be substituted by the clean factor when deciding upon the production technology the unit costs of producing the clean factor in the second period are decreasing in the quantity produced in the initial period we derive the optimal environmental policy for both periods from a national point of view and show that the presence of the environmental service industry can indeed lead to a national leadership in pollution control

working part time by choice or by constraint the selection of workers into part time jobs and the wages they earn are analysed using the 1989 labour market activity survey we focus on the distinction between voluntary and involuntary part time workers since involuntary part time workers earn substantially lower wages than other workers we find that the selection of individuals into involuntary part time work is more closely tied to job characteristics than personal or human capital characteristics the lower wage earned by involuntary part time workers is largely due to differences in returns and selection effects rather than differences in endowments

measuring the gender wage gap a methodological note we propose to estimate the blinder oaxaca decomposition by a single equation model augmented with interactions between the group membership and other predictors the relative importance of predicto

robust technology policy against emission leakage the case of upstream subsidies asymmetric regulation of a global pollutant between countries can alter the competitiveness of industries and lead to emissions leakage which hampers countries welfare in order to limit leakage governments consider supporting domestic trade exposed firms by subsidizing their investments in abatement technology the suppliers of such technologies tend to be less than perfectly competitive particularly when both emissions regulations and advanced technologies are new in this context of twin market failures we consider the relative effects and desirability of subsidies for abatement technology we find a more robust recommendation for upstream subsidies than for downstream subsidies downstream subsidies tend to increase global abatement technology prices reduce pollution abatement abroad and increase emission leakage on the contrary upstream subsidies reduce abatement technology prices and hence also emissions leakage

wage determination of registered nurses in proprietary and nonprofit nursing homes this study explores why registered nurses employed in nonprofit nursing homes earn higher wages than those employed in proprietary facilities previous studies have explained this finding in a property rights context where higher wages were posited to result from the weaker incentives for cost minimization accompanying nonprofit status this paper tests an alternative explanation of sectoral wage differences which is predicated on the reason for the coexistence offor profit and nonprofit firms in a given industry informational constraints concerning the quality of care are posited to cause the long term health care market to fail to provide care at the upper levels of a quality of care continuum nonprofits are viewed as a response to this form of market failure acting to fulfill customers demand for higher quality and higher cost long term care with attendant demand for higher quality nurses than in for profit homes both the observed sectoral pattern in selectivity and wage decompositions based on selectivity corrected wage regressions call into question the property right explanation yet are consistent with an asymmetric information explanation

the veteran wage differential there is debate in the literature as to whether military service is rewarded in the economy and the extent to which veterans receive either a wage premium or penalty in this paper we take a new a

imposing smoothness priors in applied welfare economics an application of the information contract curve to environmental regulatory analysis economic effects of public policy alternatives often are analyzed with simulation models the value of simulation is enhanced when model parameters can credibly be estimated econometrically but unrestricted estimation can be expected to result in problematic estimates for example estimated parameters contrary in sign to what economic theory dictates the information contract curve icc developed by leamer provides a flexible means to impose regularity on estimated parameters at minimum likelihood cost we extend the icc methodology using conically uniform priors and apply it to measuring the welfare costs of environmental regulations in the u s pulp paper and paperboard industry

the wage effects of cumulative job mobility this analysis of data from the national longitudinal survey of youth shows that cumulative job mobility had statistically significant effects on wages in the years 1979 88 the direction of the wage effects positive or negative and their magnitude varied depending on the type of cumulative mobility examined employee initiated versus employerinitiated separations economic versus family related quits layoffs versus discharges the results also indicate that although men and women had different mobility histories men for example had been discharged more often than women and women had quit for family related reasons more often than men the wage effects of each type of cumulative mobility economic quits family related quits layoffs and discharges were similar for men and women tn this paper we examine the impact of cumulative job mobility on the subsequent wages of young men and women most previous work on this subject has focused on the impact of specific mobility events such as quits or layoffs rather than on the impact of total job history on wages researchers looking at single mobility decisions have consistently reported evidence that a change in employers does affect a worker s subsequent wage therefore it is reasonable to ask whether the impact ofjob change is cumulative that is does a worker s current wage reflect the impact of all past mobility decisions quits layoffs and discharges also since most of the

labor market discrimination against men with disabilities in the year of the ada the americans with disabilities act ada provides civil rights protections to persons with disabilities but the debate that preceded passage of the act was not based on empirical estimates that could be used to measure its performance this article estimates the extent of wage discrimination against men with disabilities in 1990 providing a reference that can be used to evaluate the impact of the ada the results show large productivity standardized wage differentials between disabled and nondisabled men that are weakly correlated with the strength of prejudice against different impairments physical limitations explain part but not all of the wage differentials the results also show that low employment rates are a more serious problem than wage discrimination for workers with disabilities provide civil rights protections to persons with disabilities the act s supporters promised that it would increase the employment and wages of persons with disabilities and reduce their dependency on public programs the promises were not based on empirical estimates of discrimination and there is no empirical base against which to compare the promises to the performance of the ada this article estimates the extent of wage discrimination against men with disabilities in 1990 providing a reference that can be used to evaluate the impact of the act the ada does not grant a right to employment to all persons with disabilities it requires that persons with disabilities be able to perform the jobs they seek subject to reasonable accommodations by employers this article therefore considers men who are able to work even though their health limits the amount or kind of work they can perform the ada s provisions assume that low wages and low employment rates for persons with disabilities are the result of discrimination caused by prejudice prejudice against persons with disabilities is well documented but so are the limiting effects of physical impairments on workplace productivity hahn 1987 margolis and shapiro 1987 clogston 1990 the core of the debate concerning the value of the ada is whether the poor labor market outcomes of persons with disabilities are the result of discrimination or the limiting effects of health con

capitalism socialism and productivity an econometric analysis of ces and translog functions abstract the authors inquire whether there is a difference in productivity between capitalist and socialist economies perhaps varying with the level of development data on 65 countries in 1975 provide a basis for estimating ces and translog functions relating national income to nine resource variables and two variables influencing productivity prior information on marginal products is used in deriving bayesian estimates the estimates indicate that although the relative productivity of socialist economies may decline with development the differences in productivity are insignificant at all observed levels of development

poverty among minorities in the united states explaining the racial poverty gap for blacks and latinos the two largest minorities in the united states african americans and people of hispanic origin show official poverty rates at least twice as high as those of non hispanic whites these similarly high poverty rates between the two minorities are however the result of different combinations of factors related to the specific characteristics of these two groups in this article we analyse the role of demographic and labour related variables in the current differential of poverty rates among racial and ethnic groups in the united states and its recent evolution our results show first that these differentials are largely explained by differing family characteristics of the ethnic groups furthermore we show that while labour market activity of family members and a preponderance of single mothers play a more significant role in the higher poverty rates of blacks a larger number of dependent children is closely associated with higher poverty among latinos who also suffer from a larger educational att

the impact of unionization on male female earnings differences in canada the impact of unionization on male female earnings differences in canada is analyzed using data spanning 1981 to 1988 a period in which the male female unionization gap narrowed considerably gender differences in union density union wages and nonunion wages are decomposed into characteristics related and discriminatory components we find that the drop in the gender unionization gap prevented an increase of 7 percent in the overall wage differential between men and women also male female earnings differences in the nonunion sector make a substantially larger contribution to the gender earnings gap than do those in the union sector

on capturing oil rents with a national excise tax this paper argues that since the supply of oil in the ground is inelastic the incidence of a sales tax on oil maintained forever at a fixed rate would fall entirely on the oil suppliers in the world economy however the elasticity of supply of oil to a single country depends on that country s imports as a share of world output and on the elasticity of demand for that country the paper calculates optimal tax rates for a country as a function of these variables and estimates optimal oil tax rates for the u s for some oecd countries separately and for the u s plus the oecd collectively current u s tax rates are shown to be far below optimal values

inter industry wage differentials and the gender wage gap an identification problem an intuitively appealing method for estimating gender wage gaps by industry is shown to yield estimates that vary according to the arbitrary choice of left out reference groups for non industry cat

catching up the educational mobility of migrants and natives children in europe migrants into european countries are often less educated than european natives we analyse whether migrants children are more or less likely than natives children to achieve upward educational mobility across generations and study differences in the factors which contribute to differences in mobility for the two groups we find that migrants descendants are more often upwardly mobile and less often downwardly mobile than their native peers in the majority of countries studied and show that the main factor contributing to these patterns is the education level of parents although a lower parental education means that their children are less likely to access the same amount of human social and financial capital as children of more highly educated parents migrants descendants over the last two generations were able to make significant progress in reducing education gaps with natives

re exploring the trade and environment nexus through the diffusion of pollution some scholars argue that trade liberalization results in the outsourcing of pollution to pollution havens and this may explain the existence of the environmental kuznets curve ekc in industrialized countries others claim that trade liberalization effectively lessens pollution by allowing a more efficient use of resources and the diffusion of clean technologies in part because these theories generate similar predictions for industrialized countries empirical studies have not provided conclusive evidence for either argument to identify the role of trade i draw on the insights of the diffusion literature and estimate a spatial regression model where trade operates as the mechanism through which pollution shifts from country to country using the case of per capita carbon dioxide hbox co 2 emissions i find that once spatial correlation is accounted for the ekc disappears the effect is even stronger when looking at trade from developing countries only providing support for the pollution haven hypothesis i also show that the hbox co 2 trajectory of developing countries goes above the one previously followed by industrialized countries this suggests that developing countries carry on an additional carbon burden above the one that would be obtained in the absence of trade these findings contribute to the literature on the non economic effects of trade and the constraints of domestic policies when the costs of trade are low

the effect of unions on the employment of blacks hispanics and women to investigate whether unions have helped or hindered the employment prospects of minorities and women the author analyzes data on 1 273 california manufacturing plants for the period 1974 80 the

explaining the decline in the offer rate of employer retirement plans between 2003 and 2012 workplace retirement plans deferred compensation plans dcs and deferred benefit plans dbs help workers save for retirement conveniently consistently and automatically but the percentage of

the definition of part time employment a switching regression model with unknown sample selection rejecting the standard less than thirty five hours per week categorization of part time workers this paper offers an empirically justified definition of the part time employed the definition is based on the distinction through wage payments that employers make between a high hours full time and a low hours part time group of workers a switching regression model of wage equations with deterministic but unknown sample selection is estimated resulting in a significant split between high hours and low hours workers that is higher than the standard definition wage differentials are calculated and decomposed and estimates from the structural choice model are presented copyright 1991 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

the evolution of male female earnings differentials in canadian universities 1970 2001 the evolution of academic salaries and the gender earnings gap in canadian universities is analysed using a unique statistics canada data set containing detailed information on all full time teachers at canadian universities over the period 1970 through 2001 male salaries declined across cohorts while female salaries remained stable consequently male female earnings differentials have narrowed recent years have also seen increasing variation in academic salaries for both men and women a gender earnings gap remains the bulk of which can be explained by differences in men s and women s rank and field the unexplained earnings gap has decreased over time on analyse l evolution des salaires et l ecart entre hommes et femmes dans les universites canadiennes entre 1970 et 2001 a l aide d une base de donnees unique de statistiques canada qui contient des renseignements detailles sur tous les professeurs a temps plein des universites canadiennes les salaires des hommes ont decline au fil des cohortes pendant que ceux des femmes demeuraient stables ce qui fait que les differentiels de salaires se sont amenuises au cours des annees recentes on a observe une variabilite croissante des salaires academiques tant pour les hommes que les femmes un ecart entre hommes et femmes persiste qui est attribuable aux differences dans les rangs et dans les champs d activites des hommes et des femmes l ecart qui demeure inexplique a diminue dans le temps

the decline of unionization in the united states what can be learned from recent experience the dramatic decline in unionization over the last decade is investigated in the context of a supply demand model of union status determination using data from surveys of workers conducted in 1977 and 1984 along with data from the national labor relations board on representation elections it is concluded that the decline in unionization since 1977 is accounted for largely by 1 an increase in employer resistance to unionization probably due to increased product market competitiveness and 2 a decrease in demand for union representation by nonunion workers due to an increase in the satisfaction of nonunion workers with their jobs and a decline in nonunion workers beliefs that unions are able to improve wages and working conditions

trade in environmental goods and air pollution a mediation analysis to estimate total direct and indirect effects based on panel data covering 114 countries between 1996 and 2011 this study investigates the impact on pollution of trade in environmental goods egs we check the validity of the implicit consequences assumed by the win win scenario in the current trade climate negotiations arguing that market dynamics should guarantee that egs liberalization is automatically in the interest of all countries regardless their market and institutional capacities we show that trade in egs alone fail to address environmental problems effectively in particular although we found efficiency gains from trade in egs in terms of co2 and so2 emissions per 1 us of gdp and more recurrently for net exporters than for net importers our results often failed to highlight environmental effectiveness in terms of total co2 and so2 emissions a general conclusion that emerges from our empirical results is that trade in egs cannot effectively replace non market based solutions when it comes to non trade objectives however it seems to complement them efficiently our multiple equation gmm estimations reveal specific direct indirect and total effects on pollution depending on the countries net trade status leading to several policy recommendations for an increased environmental effectiveness of trade in egs

the impact of pension benefits on the distribution of earned income using standard measures of income inequality and detailed pension benefit information on participants in the 1983 survey of consumer finances scf the authors investigate how pension benefits affected the distribution of earned income the results suggest that private pensions increased annual income inequality relative to inequality observed in the distribution of wage income by only about 2 among all employed individuals but by 21 among unionized workers further analysis indicates that private pensions raised annual income inequality primarily by increasing the rate of return to tenure possibly through pension backloading setting accruals to grow when earnings rise near retirement and the increasing incidence of pensions with age private pensions had little effect on estimates of the distribution of expected lifetime income but the addition to the analysis of social security benefits public pensions strongly reduced inequality in that distribution a renewed interest in the distribution of income has developed recently as new evidence suggests that income inequality has worsened over the past twenty years researchers suggest several reasons for rising inequality including an increase in the incomes of well educated men relative to other groups for example juhn murphy and pierce 1993 demographic changes resulting from the entrance of the baby boom generation into the work force lawrence 1982 and a sectoral shift away from manufacturing and toward the ser

patterns of ethnic self employment in time and space evidence from british census microdata the over representation of certain ethnic minority and immigrant groups in self employment is in common with other developed countries a notable feature of the uk labour market compared to the substantial growth in self employment in the 1980s the 1990s saw overall self employment rates plateau despite this some minority groups experienced continued growth whilst others particularly chinese and indian males and pakistani bangladeshi and chinese females saw their self employment rates decline in this paper we use microdata samples from the 1991 and 2001 censuses to investigate the dynamic and spatial patterns of ethnic entrepreneurship using decomposition methods we find that for males from the asian groups changes in observable characteristics associated with an increasing proportion of second generation individuals explain much of the decline in self employment this which is also true of chinese females reflects in part the age structure and educational experiences of the second generation the dynamics of black male and pakistani bangladeshi male and female entrepreneurship are less easy to explain we also find that while there is no evidence of self employment being an enclave phenomenon local economic conditions do affect rates of entrepreneurship for some groups notably pakistanis and bangladeshis

the effect of implicit contracts on the movement of wages over the business cycle evidence from the national longitudinal surveys a 1991 study by paul beaudry and john dinardo found evidence of internal labor markets that augment incumbent workers wages when the external labor market is tight when unemployment is low and shield their wages when it is slack current wages they found depend on the tightest labor market conditions observed since a worker was hired not current labor market tightness or labor market tightness at the time of hiring this paper replicates and extends that research using data from six cohorts of the national longitudinal surveys that together span more than three decades as well as an estimation framework more robust than that in the original study the author finds strong support for beaudry and dinardo s key prediction supplementary regressions confirm other implications of the theory as well recently at least the effect of implicit contracting on wages has been similar for men and women

educational inequalities between children of marriage migrants and those of local born parents quantile regression results from taiwan abstractthis article studies educational inequalities between children of marriage migrants and those of local born parents using student test scores from taiwan we first find an average raw score gap of 9 5 for children of foreign parents we then employ quantile regression methodology and find that after introducing our extensive list of covariates score gaps vanish for children with a mother from mainland china in all quantiles and for children with a southeast asian mother in the highest quantiles in contrast we identify large residual score gaps for children with a parent from a culturally more distant country in all quantiles different from previous studies which found the largest impact for language usage and parent education we find that the physical home environment has the highest explanatory power in our analysis

timing and commitment of environmental policy adoption of new technology and repercussions on r d we investigate the interplay between environmental policy incentives to adoptnew technology and repercussions on r d we study a model where a monopolistic upstream firm engages in r d and sells advanced abatement technology to polluting downstream firms we consider four different timing and commitment regimes of environmental tax and permit policies ex post taxation or issuing permits interim commitment to a tax rate a quota of permits after observing r d success but before adoption and finally two types of ex antecommitment before r d activity one with a unique tax rate quota of permits the other one with a menu of tax rates permit quotas we study the second best tax and permit policies and rank these with respect to welfare in particular we find that commitment to a menu of tax rate dominates all other policy regimes

the decline of private sector unionism and the gender wage gap between 1973 and 1988 private sector unionism fell by 9 5 percentage points more for men than women and the gender wage gap one minus the ratio of female to male wages decreased by 09 these trends support two findings first unionism fell more slowly for women primarily because the probability of unionism fell most rapidly in jobs dominated by males second the greater decline in unionism among males is responsible for approximately one seventh of the 09 decline in the gender wage gap

union membership determination and industry characteristics recent literature on the economics of unionism has expanded beyond its customary focus on the wage and nonwage effects of collective bargaining and given increased attention to the determinants of union membership previous union membership studies have been couched primarily within an individual choice framework whereby utility maximizing individuals choose either to join or not to join a union empirical work typically treats membership as a function of some vector of personal characteristics 1 2 10 11 21 it is our contention that such studies can best be interpreted as explaining the determination of the union status of jobs and that several industry and firm characteristics in addition to personal characteristics can be expected to affect significantly union membership in this paper theory and evidence relating to the effects of firm and industry characteristics on union membership are presented industry level data are bridged with a large microdata set containing individual characteristics in order to examine the determinants of unionism among workers in manufacturing utilizing a simultaneous model and controlling for sample selection bias we find that product market concentration capital intensity establishment size and job risk significantly affect the likelihood of union membership

plant size and the decline of unionism abstract declining plant size is shown to explain a significant portion of the recent decline in unionism particularly in manufacturing the paper also shows how to use the probit model to decompose the change in unionism into explained and unexplained components

the political economy linkage between trade liberalization and domestic environmental regulations this paper considers the political economy linkage between trade liberalization and domestic environmental regulations in a duopolistic product market we investigate the environmental consequences and welfare implications of a home country s unilateral tariff reduction on a polluting good in a framework where the domestic environmental tax is subject to the influence of the home firm we find that a tariff reduction on a good producing a consumption type externality will improve the home country s environmental quality moreover we find that the home country s tariff reduction will unambiguously enhance the home country s welfare and it will damage the foreign firm s profits and thus the foreign country s welfare provided that the weight that the home government attaches to its social welfare is sufficiently small this result also suggests the possibility that a unilateral tariff reduction will achieve a pareto improvement

psychological traits and earnings differentials among men a study of second generation immigrants in sweden the purpose of this study is to analyse the impact of psychological traits on earnings differentials between second generation immigrants and individuals with native born parents the study is base

world product and income international comparisons of real gross product the volume reports on the third phase of the united nations international comparison project icp the main results provide comparisons of real gross domestic product gdp per capita for thirty four countries in 1975 quantity and price comparisons are given also for personal consumption capital formation and public consumption and further subdivisions of final expenditures on gdp are estimated

interest groups trade liberalization and environmental standards in considering a country that imposes a minimum standard on an imported polluting good which generates negative consumption externalities we construct a common agency model in which a domestic environmental group and a foreign industrial lobby can influence the formation of the minimum standard by providing political contributions to the government this paper investigates the effects of trade liberalization on the political equilibrium environmental standard the pattern of trade environmental disutility and social welfare we find that trade liberalization tightens the minimum standard decreases imports of the polluting good and reduces environmental disutilities the importing country s social welfare however does not necessarily increase with trade liberalization the weaker the environmental group s lobbying efficiency or the stronger the foreign firm s lobbying efficiency the more likely it is that trade liberalization will enhance the importing country s welfare

on the best use of trade controls in the presence of foreign market power this paper derives optimum tariffs for a country whose trading partner always exploits its own market power but assumes naively that the home country will leave its restriction unchanged it then shows that a country which is a monopolist or monopsonist will always prefer its best price limit price floor or ceiling to its best tariff and prefer free trade to any quota however a duopsonist or duopolist will prefer its best quota to its best tariff and free trade to any price limit finally the best import or export tariff of a country which fears retaliation may be negative