an update and extension of the canadian evidence on gender wage differentials the paper utilizes the 1989 labour market activity survey to examine the gender wage differential in canada the aim is to update previous studies and extend earlier analysis in two significant ways first occupation is treated as endogenously determined secondly the zabalza and arrufat 1985 imputation method is utilized to estimate the level of female labour market experience the results suggest that the level of estimated gender discrimination is sensitive to the measure of labour market experience the paper also concludes that intra occupation wage effects explain most of gender wage gap

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

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

closing coal economic and moral incentives climate policy requires that much of the world s reserves of fossil fuels remain unburned this paper makes the case for implementing this directly through policy to close the global coal industry coal is singled out because of its high emissions intensity low rents per unit value local environmental costs and sheer scale direct supply policy the sequenced closure of coal mines may lead to less policy leakage across countries and time than other policies based on demand or price management it also has the advantage of involving relatively few players and leading to clear cut and observable outcomes appropriately sequenced closure of the world coal industry could we suggest create the moral force needed to mobilize collective international action

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

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

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

pension coverage and retirement savings of young and prime aged workers in canada 1986 1997 in this paper we assemble data from several household surveys to document how pension coverage of young and prime aged workers has evolved in canada between the mid 1980s and the mid 1990s we show that between 1986 and 1997 pension coverage has fallen significantly for men has dropped slightly for young women and has increased for prime aged women the decline in union density and employment shifts towards low coverage industries explain most of the decline in pension coverage of men and young women in contrast most of the increase in coverage of prime aged women remains unexplained while pension coverage has fallen for men and young women their real average contributions to registered retirement savings plan rrsps have increased substantially as a result the sum of the amounts they contributed to registered pension plans rpps and rrsps has increased markedly jel classification j26 j32 couverture des regimes de rentes et epargnes pour la retraite des travailleurs jeunes et de ceux dans la force de l ge au canada 1986 1997 dans ce memoire les auteurs assemblent des donnees de plusieurs enquetes sur les menages pour documenter l evolution de la couverture des regimes de rentes des travailleurs jeunes et dans la force de l ge entre le milieu des annees 80 et le milieu des annees 90 on montre que cette couverture a chute de maniere significative pour les hommes a decline legerement pour les femmes et s est accrue pour les femmes dans la force de l ge la chute du taux de syndicalisation et les deplacements de l emploi vers des secteurs ou la couverture est plus faible expliquent le gros du declin de couverture pour les hommes et les jeunes femmes quant a l accroissement de la couverture pour les femmes dans la force de l ge il demeure inexplique alors que la couverture des deux premiers groupes a decline leurs contributions aux regimes enregistres d epargne retraite reer ont augmente substantiellement en consequence le total des sommes qu ils ont contribuees aux regimes de rentes enregistres et aux reer ont augmente de maniere importante

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

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

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

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

industrial composition interindustry effects and the u s productivity slowdown this paper investigates the effect of shifts in output composition on the slowdown of productivity growth in the united states between 1947 67 and 1967 76 i employ a leontief input output framework and a divisia index of aggregate productivity growth to separate the effects of changes in sectoral rates of technical progress from the effects of changes in output composition and interindustry flows on the change in overall productivity growth of the approximately 2 percentage point decline in overall total factor productivity growth 17 to 22 was due to compositional effects and the remainder to other factors t he importance of shifts in input or output composition in explaining the recent productivity slowdown in the united states has been a source of some controversy estimates of such shift effects vary considerably for example gollop 1982 calculated that resource shifts were actually an offset to the slowdown in productivity growth kutscher mark and norsworthy 1977 estimated that employment shifts had no effect on productivity growth thurow 1979 ascribed half of the slowdown between 1965 72 and 1972 77 to employment shifts and nordhaus 1972 attributed 77 of the decline from 1948 55 to 1965 71 to employment shifts in a related paper the possible reasons for these disparate results were discussed at length see baumol and wolff forthcoming briefly these differences stem primarily from the use of different concepts and measures actually three different concepts are used in the literature the first is a resource allocation or equilibrating shift effect which measures the increase in productivity that can result from a more efficient allocation of resources cf denison 1979a 1979b and 1984 norsworthy harper and kunze 1979 and gollop 1982 while interesting in itself this resource reallocation effect is a somewhat limited notion measuring the movement toward the efficient frontier instead of the outward movement of the frontier over time the second concept is the so called level effect which assesses the effect of resource shifts on overall productivity growth by holding constant the productivity levels of the various sectors of the economy cf nordhaus 1972 kutscher mark and norsworthy 1977 and thurow 1979 this measure was found to be quite arbitrary depending on the arbitrary choice of base year used in the computation the third is the so called rate effect which assesses the effect of shifts in resources by holding constant sectoral rates of productivity growth cf nordhaus 1972 baily 1982 and gollop 1982 all three authors found that the rate effect had a negligible influence on the productivity slowdown this measure is the most theoretically sound of the three and my measure will fall in this category though differ in significant ways from previous formulations and show a greater effect on overall productivity growth from compositional changes i shall first develop a general model to measure such shifts or composition effects from a leontief input output framework sections i and ii results for the u s economy over the 1947 76 period will then be reported with particular emphasis on accounting for the productivity slowdown after 1967 sections iii iv and v conclusions and a comparison with other results will be discussed in section vi vii and viii i the standard model following the work of peterson 1979 let us define x column vector of gross output by sector at time t y column vector of final demand by sector at time t at matrix of inter industry technical coefficients at time t it row vector of labor coefficients at time t showing employment per unit of output kt row vector of capital stock coefficients at time t showing the capital stock required per unit of output p row vector of prices at time t showing the price per unit of output of each industry received for publication june 27 1983 revision accepted for publication october 19 1984 new york university i would like to express my appreciation to wassily leontief william baumol m i nadiri mark schankerman martin baily and andrew sharpe for helpful comments and to the division of information science and technology of the national science foundation for financial support

the distribution of the male female earnings differential 1970 1990 the authors examine the male female earnings differential between 1970 and 1990 their objective is to provide consistent estimates that can be compared and interpreted over time and to assess the sensitivity of their results to alternative specifications the authors find that women made modest gains over the period standard decomposition techniques reveal that gender differences in observable characteristics do not explain much of the earnings differential most of the improvement in women s relative earnings has come by a decline in the unexplained component the authors also find that the differential varies systematically across age and education groups and across high and low income women coauthors are dwayne benjamin andree desaulniers and mary grant

comparison of energy intensities in european union countries results of a structural decomposition analysis abstract this work proposes an input output structural decomposition analysis model to identify the sources of the differences in the energetic intensities of the european union countries given an economic structure a determined composition of the final demand and determined direct energy intensities by countries the work studies to what extent these factors explain the difference in aggregate energy intensities that are observed for different european union countries on the basis of this information indicators are constructed by sectors and countries that allow us to identify the role that each sector or country plays as an energy consumer the results show that the aggregate total energy differences in europe are strongly influenced by the direct energy intensity effect and by the demand effect without the different economic structures of the countries being an important factor in the explanation of these differences the metallurgical and manufacturing products sectors are identified as the most intensive in the aggregate energy intensity

economic growth and the evolution of water consumption in spain a structural decomposition analysis abstract the aim of this paper is to examine how technology processes of input substitution and changes in final demand all of which underlie economic growth influence water consumption this analysis is undertaken for spain during a significant socio economic period from 1980 the beginning of the democratic era to 2007 the onset of the current economic crisis to this end we construct water consumption series linked to a time series of input output tables generated for the spanish economy and we develop a structural decomposition analysis to study mainly changes in water consumption embodied in final demand we find that the growth in spanish demand all other things being constant would have implied an increase in water consumption almost three times the growth actually observed however this demand effect is largely offset by technology and intensity effects mainly due to changes in agricultural crops given the importance of the demand growth the final demand effect is also analyzed in detail broken down by categories as well as level and composition household demand and the increase of exports appear as key explicative factors

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

twenty first century the century of coal co2 prices to curb coal demand the paper investigates how a carbon price could halt the comeback of coal which started in the early 2000s since the year 2000 coal has provided roughly 40 per cent of global primary energy growth the success of coal in the primary energy mix is due to the fact that it is abundant cheap and most often a domestic resource however global coal reserves if burnt would surpass the remaining carbon budget for a 2 c target by a factor of two the paper shows that a carbon price of 25 100 usd per tonne of co2 would be needed to phase out coal in the power sector depending on the technology and the world region even when assuming significant technological progress

trends in earnings differentials by gender 1971 1981 this paper clarifies trends in relative earnings by sex over the decade 1971 1981 and decomposes these trends to determine which factors contributed to a decline and which to an increase our analyses are based upon data from the annual demographic files of the current population survey for 1972 and 1982 this study is unique in that it estimates earnings functions in each year which are corrected for selectivity bias it is found that such a correction markedly raises the progress of white women relative to men among blacks the impact of the selectivity bias correction was to substantially lower the relative earnings increase of women however the coefficients on the selectivity variable were not significant the findings suggest declining sex role specialization and discrimination as conventionally measured over the decade on the other hand contrary to expectations the total effect of variables reflecting the sex composition of the individuals occupation worked to widen the sex differential over the period the sex differential was also adversely affected by a decline in the relative return to education especially for whites authors modified

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

buy coal a case for supply side environmental policy free riding is at the core of environmental problems if a climate coalition reduces its emissions world prices change and nonparticipants typically emit more they may also extract the dirtiest type of fossil fuel and invest too little in green technology the coalition s second best policy distorts trade and is not time consistent however suppose that the countries can trade the rights to exploit fossil fuel deposits as soon as the market clears the above mentioned problems vanish and the first best is implemented in short the coalition s best policy is to simply buy foreign deposits and conserve them

why the gender gap in wages narrowed in the 1980s since 1976 the gender gap in wages on average declined by about 1 per year this article focuses on identifying the factors underlying this trend three data sets are analyzed the current population survey the panel study of income dynamics and the national longitudinal survey we find that convergence in measurable work related characteristics schooling and work experience explains one third to one half the narrowing the remainder is attributable to a relative increase in women s returns to experience as well as to declining wages in blue collar work and other factors

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

the gender wage gap a comparison of australia and canada using data from the 1989 canadian labour market activity survey and for australia the 1989 90 income distribution survey the authors investigate the reasons for the significantly lower gender wage gap in australia than in canada key similarities and differences between these two countries the authors argue make them a good basis for a natural experiment to investigate the effects of different labor market institutions in particular australia has a stronger union movement and a greater degree of centralization in wage determination than canada and most of its workers are covered by legally binding minimum working conditions the authors conclude that several differences between the countries in labor market structure notably a lower rate of return to education a lower rate of return to labor market experience and a lower level of wage inequality in australia than in canada are largely responsible for the smaller gender wage gap in australia

analysing andalusian virtual water trade in an input output framework dietzenbacher e and velazquez e 2007 analysing andalusian virtual water trade in an input output framework regional studies 41 1 12 andalusian agricultural sectors are relatively small but account for 90 of annual water consumption more than 50 of the agricultural final demands is exported to other spanish regions or abroad using the concept of virtual water within an input output framework it is found that a substantial part of andalusian water consumption is embodied in its exports considering the virtual water content of its trade andalusia is a net exporter of water examining regional policy aspects a reduction in the exports abroad of agricultural products yields considerable benefits in terms of water savings while the negative effects are only moderate dietzenbacher e et velazquez e 2007 une analyse des echanges andalous d eau virtuelle dans le contexte d un tableau d echanges interindustriels regional studies 41 1 12 les secteurs agricoles andalous sont relativement petit

vulnerable seniors unions tenure and wages following permanent job loss in contrast to nonunion workers reemployment wages of workers displaced from unionized jobs decline with tenure on the lost job this finding cannot easily be explained by firm or industry specific human capital accumulation deferred pay policies standard matching models or a correlation between tenure and reentry rates into unionized jobs possible explanations include negative selection of senior union workers and a negative causal effect of unionism on workers alternative skills despite a much flatter predisplacement tenure wage profile displaced union workers wage losses increase with tenure at a rate comparable to or higher than those of nonunion workers

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

male female earnings differentials and the role of language in canada ontario and quebec 1970 recent studies by robb 1978 and gunderson 1979a have analysed malefemale earnings differentials in ontario and canada respectively both authors first estimated sex specific earnings functions and then employed the estimated coefficients to decompose the observed or gross earnings differential into a portion attributable to differences in mean characteristics or endowments and a portion attributable to discrimination i discrimination is measured both by differential returns to the same productivity generating characteristics the estimated coefficients of the characteristics and by other forms of discrimination which do not appear explicitly in the earnings equation the estimated intercepts the purpose of this note is to report the results obtained from performing a similar decomposition analysis for quebec and to compare our results with those of robb and gunderson given the comparative nature of our study we have chosen to use the same data base sample characteristics model specifications and control variables as did robb and gunderson 2 the major difference between our study and those of robb and gunderson is the treatment of language robb did not include language variables in her earnings functions for ontario while gunderson employed what we term a narrow definition of language for canada in his earnings equations gunderson measured language skills by the ability to communicate in canada s official

union endogeneity and self selection the nature of union endogeneity is examined in the light of recently proposed estimators for union wage differentials the instrumental variable iv approach adopted by duncan and leigh is shown to yield little information on the precise nature of the endogenous process in particular it cannot be used to sign the direction of selection into the union and nonunion sectors since by construction the iv estimates impose opposite signs on the selection terms

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

effects of trade unions on the earnings differential between males and females canadian evidence this paper examines whether trade unions have affected the earnings gap between male and female workers in canada based on a sample of 4 093 individuals derived from the survey of union membership the results of regression analysis suggest that unions have increased the relative earnings of male workers even after the difference in the level of unionization between males and females is accounted for the results also indicate that the relative wage effect differs substantially between the public and private sectors

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

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

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

structural path and decomposition analysis of aggregate embodied energy intensities in china 2012 2017 abstract the dependence of the economic development of a region on its energy consumption is a major challenge for developing countries the aggregate embodied energy intensity aei based on an input output framework reflects the interaction between regional economy and energy consumption driven by final demand studying the change in aei from the perspective of sector production and final demand can effectively control the source and trend of energy intensity change in order to control the growth of energy intensity however there is a relative lack of studies determining the causes of aei changes from the perspective of sectors and final demands this study attempted to identify the influencing factors of aei changes and establish an aei based environmental policy in china a multiplicative structural decomposition analysis and a structural path analysis were used to study the aei under conditions of different final demands sectors and transmission layers along with the factors influencing aei changes in china from 2012 to 2017 our results indicate that the final demand category of gross fixed capital formation made the largest contribution to aei changes in 2012 and 2017 and the multiplicative intensity factor significantly inhibited the decrease in aei among the sectors studied only a few were found to significantly affect the change in aei with s11 processing of petroleum coking and nuclear fuel s12 chemical industry and s14 smelting and rolling of metals being the key sectors that input high energy consumption products to other sectors

employers discriminatory behavior and the estimation of wage discrimination this paper considers the linkage of empirical estimates of wage discrimination between two groups introduced by oaxaca 1973 to a theoretical model of employers discriminatory behavior it is shown that conditional on different assumptions about employers discriminatory tastes oaxaca s estimators of wage discrimination can be derived that the approach is more generally useful is demonstrated by deriving an alternative estimator of wage discrimination based on the assumption that within each type of labor e g unskilled skilled the utility function capturing employers discriminatory tastes is homogeneous of degree zero with respect to labor inputs from each of the two groups the estimators are compared empirically in an application to male female wage differentials

the future of fossil fuels is it the end contrary to the assumptions underlying many of current energy and climate policies the prices of fossil fuels have fallen and may remain at the new normal levels in the medium term iran and iraq have considerable potential to increase their outputs and the new shale technologies will gradually globalize longer term new technologies in electricity generation storage and smart demand side technologies together with electric cars and the shift towards digitalization and new electricity based technologies in manufacturing will increase demand for electricity but not fossil fuels these new and emerging technologies rather than international agreements and the promotion of current generation renewables will probably bring fossil fuel dominance to a gradual close to facilitate decarbonization energy policy should be directed at enhancing r d and next generation renewables instead of supporting existing ones

the endogeneity of union status an empirical test an unsettled issue in the literature relating to the relative wage effect of unions is the appropriate treatment of union status in a wage determination model in the context of a three equation model determining union membership and union and nonunion sector wage rates this paper presents an instrumental variables iv procedure for estimating the parameters of the wage equations and a test of the exogeneity of union status using the hausman specification test an advantage of our iv procedure in comparison to the widely used inverse mill s ratio procedure is that our procedure is a distribution free estimator whereas the inverse mill s ratio estimator hinges in the assumption that the error term of the choice equation is normally distributed using data for a sample of middle aged white workers we estimate the parameters of the union and nonunion wage equations with both procedures on the key question of the endogeneity of union status the hausman test decisively rejects the null hypothesis of exo

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

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

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

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

the effect of unionization on the gender earnings gap in canada 1971 1981 the male female earnings differential in canada is investigated with particular attention to the effect of trade unions on the gender earnings gap an augmented version of the human capital theory based earnings equation is used as the empirical framework of the study gender specific earnings equations are estimated using cross sectional aggregate data for metropolitan cities and regions in canada for 1971 and 1981 the empirical results for 1971 indicate that unionization increases the annual earnings of males more than of females whereas the 1981 results indicate that trade unions decrease the male female earnings gap however the latter evidence is not statistically significant the study suggests that the increase in female participation in trade unions was an important factor in reducing the gender earnings gap over the period 1971 1981

gray water and environmental externalities international patterns of water pollution through a structural decomposition analysis abstract despite regulatory measures restricting industrial and agricultural operations from pouring pollutants into lakes streams and rivers around 1 1 trillion m3 of wastewater were still disposed in waterways around the world in 2009 and this amount continues to grow several studies have analyzed the determinants of gray water increase at local level but so far none has explored them in an international context to highlight the role of global value added chains and the dichotomy between developed and developing nations in order to provide insights on the dynamics of water pollution worldwide this paper analyzes the main drivers of gray water discharge during the 1995 2009 period and the effort on reducing gray water compared to other environmental externalities based on the world input output database a structural decomposition analysis sda of gray water generation shows that domestic demand for food is the main driver of gray water changes in all countries while relocation of industrial activities to developing nations has disproportionally transferred this burden from developed countries manufacturing industries we highlight that while national policies should target water pollution from the agri food sector within each country water discharges from manufacturing sectors in global value chains need to be regulated from an international perspective besides the empirical evidence on water pollution drivers currently lacking in the environmental literature this paper also introduces a novel hybrid multiplicative additive sda that overcomes the issue of distributing large interaction terms in standard additive models and allows simulating mitigation scenarios it portrays the heterogeneity among sectors of how environmental abatement policies affect water and air pollution

viewpoint male female wage differentials how can that be abstract the paper outlines the main empirical procedures that are used to document the male female wage differential and the extent to which it reflects discrimination it then discusses the evidence on male female wage differentials their existence the extent to which they reflect discrimination their changes over time and the factors that influence the gap particular attention is paid to more recent studies that control for a wider range of conventionally unobserved factors theoretical perspectives are then outlined focusing on the issue of how discriminatory wage differentials can survive given the forces of competition the impacts of policy initiatives are also discussed

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

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

structural decomposition analysis of physical flows in the economy many environmental problems can be attributedto the extraction and emissions of physicalsubstances increasing our understanding of theeconomic and technological driving forcesbehind these physical flows can contribute tosolving the environmental problems related tothem the input output framework is a usefulsetting in which to integrate detailedinformation about economic structure andphysical flows in this article a specificmethod in input output analysis is reviewed namely structural decomposition analysis sda it is based on comparative static analysis which decomposes historical changes of a policyvariable into determinant effects sda has beenapplied for example to analyze the demand andtechnological driving forces of energy use co2 emissions and various other pollutantsand resources this article examines thetheoretical aspects of structuraldecomposition in particular those concerningphysical flows and environmental issues furthermore the article includes an extensivesurvey of empirical studies

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