aging and productivity among economists economists productivity over their careers and as measured by publication in leading journals declines very sharply with age there is no difference by age in the probability that an article submitted to a leading journal will be accepted rates of declining productivity are no greater among the very top publishers than among others and the probability of acceptance is increasingly related to the author s quality rather than the author s age

structural decomposition analysis of sources of decarbonizing economic development in china 1992 2006 abstract to analyze and understand decarbonizing economic development in china this paper undertakes a structural decomposition analysis of the historical change in energy related carbon intensity in china between 1992 and 2006 the results show that the energy related carbon intensity in china decreased by about three fourths between 1992 and 2006 and reduced carbon emissions by about two billion tons the decline in the energy related carbon intensity was mainly caused by changes in production pattern especially changes in energy intensity within each sector between 1992 and 2002 however the most important driving force of carbon intensity from 2002 2006 was not the energy intensity within each sector but the input mix on the other hand changes in demand pattern pushed up the carbon intensity to further decarbonize the economy in the future it is important for china to further enforce policies on shaping the production pattern such as reducing energy intensity and pay more attention to increasing the sustainability of the demand pattern at the same time

professional achievements and gender differences among academic economists i introduction while the academic labor market for economists attracts a good deal of attention among its participants work on the differences in remuneration for economic research and other professional characteristics between men and women in academic institutions has been limited this paper tests for gender differences using data on grants and grant applications from the national science foundation ault rutman and stevenson 1979 addressing issues of academic placement found that the highest rated institution at which an academic economist will be employed is the institution of first employment willis and pieper 1991 found that women who received doctorates in economics in the 1970s had a somewhat higher rate of placement at doctoral degree granting institutions than men but that there was no difference in the rank of the institutions for these placements lower tier institutions must offer promotions to attract candidates moore et al 1983 reported that the rank of the department at which one earned the doctorate is critically important in determining initial academic placement hamermesh johnson and weisbrod 1982 found that for those at prestigious departments increases in citations lead to salary increases but that the department s rank was not inversely related to salary in his review of work by sociologists youn 1988 reported that the prestige of an academic institution was positively related to the research productivity of its scientists there are two competing hypotheses that might explain this result better departments select better scientists achievement model or better departments foster greater productivity ascription model empirical efforts to distinguish between these hypotheses have been mixed the research on salary differentials in academia has generally found that there are significant gender differences that widen during the careers of men and women 1 barbezat 1991 the most recent evidence suggests that salary differentials in the academic community may have diminished somewhat since the 1960s but still remain weiler 1990 separated the influence of the department s rank on salary by treating it in a separate equation and found that standard formulations underestimate the degree of salary discrimination although important salary is not the only measure of achievement in academe promotion to a higher rank employment in key departments and the production of well placed articles all help determine an economist s influence in the profession but despite the dramatic increase in the percentage of women receiving the ph d during the past two decades the number of senior women at graduate institutions is still very low 2 to what extent does gender bias exist in economics departments as measured not only by salary but also by other achievements such as the likelihood of achieving a senior position or being employed by a top department is there a difference in the experiences of the younger cohorts compared to their more senior counterparts this paper attempts to answer these important questions by 1 taking into account the endogeneity of the variables that are usually treated as exogenous in models of salary determination and thereby broadening the characteristics that traditionally reflect discrimination and 2 using a new detailed data base developed from the national science foundation the results of this more complete model in which salary as well as other measures of professional achievement are explained show significant differences between men and women at the more senior level at the assistant professor level although the signs of the gender coefficients are consistent with a discrimination hypothesis the results are not statistically significant ii the model single equations using the techniques developed by oaxaca 1973 and blinder 1973 have long been used to estimate gender salary differentials in academia with productivity measures such as books and articles published administrative experience etc

on the efficiency of futures markets another view abstract one definition of market efficiency holds that today s price of an item contains all the price information that there is about that item that is today s price contains information about people s expectations about the future however in estimating price equations analysts almost exclusively look to the past in developing price forecasting models this paper examines the question how do futures prices affect today s price for heating oil that is do futures markets add to the efficiency of markets by conveying information from the future to the present

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

decoupling china s carbon emissions increase from economic growth an economic analysis and policy implications as the world s second largest carbon emitter china has long been criticized as a free rider benefiting from other countries efforts to reduce greenhouse gas emissions but not taking responsibility for its own emissions china has been singled out as one of the major targets at the subsequent negotiations after the kyoto meeting bq analyzing the historical contributions of interfuel switching energy conservation economic growth and population expansion to china s co2 emissions during 1980 97 this article clearly demonstrates that the above criticism is unjustified moreover given the fact that the role of china is an issue of perennial concern at the international climate change negotiations the article envisions some efforts and commitments that could be expected from china until its per capita income catches lip with the level of middle developed countries by emphasizing the it win win strategies these efforts and commitments are unlikely to jeopardize china s economic development and at the same time would give the country more leverage at the international climate change negotiations subsequent to the buenos sires meeting c 2000 elsevier science ltd all rights reserved

two to tango gender differences in the decisions to publish and coauthor i introduction there is a well developed mythology regarding the presence of old boy networks and their importance in explaining gender differences in labor market outcomes as articulated by saloner 1985 nonetheless aside from works such as simon and warner 1992 there is relatively little empirical evidence examining the impact of networks on market outcomes how these effects differ by gender and whether gender differences in network access change over time as women become more well represented in a profession the paucity of empirical evidence arises in part from the difficulty of measuring the presence of such networks prior work including that of saint paul 2001 and erickson and jacoby 2003 has found evidence that networks facilitate the adoption of team oriented work practices and information sharing that increase average worker productivity in management and professional jobs on the other hand studies such as that by marmaros and sacerdote 2002 have also found that women have less access to networks than their male counterparts in both private and public sector jobs which has been shown to yield gender differences in job placement and other labor market outcomes this article considers how gender differences in networks are manifested in a specific male dominated profession i e academic economists and in a specific work related outcome i e the decision to coauthor articles in which access to networks is likely to be important the analysis uses uniquely detailed individual and job level data for phd economists included in nearly four decades of american economic association aea membership to examine the role of networks on the joint decision to publish and coauthor the unique matching process of phd economists between academic and nonacademic jobs and within the hierarchy of academic departments along with the relative ease of observing joint research provide a rare opportunity to distinguish differential network access and measure joint production the results demonstrate the importance of networks in the production of research output and that new female entrants into a male dominated profession do not have equal access to these professional networks the results also provide evidence that women are able to plug into networks over time as the profession becomes more gender representative our study contributes to the literature on the role of networks in the labor market in several ways first the profession of academic economist is well suited to this study because it is made up of workers who produce a relatively homogenous output i e scholarly journal articles and that share a common set of job related tasks i e teaching research and service second the incidence of coauthorship is an observable outcome measure of network utilization a phenomenon inherently difficult to measure in the tradition of the business productivity literature as found in sabel 1993 third there is extensive evidence in the literature that journal publications are positively linked to academic salaries as found in siegfried and white 1973 and sauer 1988 that the propensity to coauthor is positively associated with publication output as in as found in durden and perri 1995 and maske et al 2003 that there are gender differences in tendencies to coauthor as shown by ferber and teiman 1980 and mcdowell and smith 1992 and that there are gender differences in professional outcomes such as publications salary and promotion as seen in mcdowell 1982 hansen et al 1978 formby et al 1993 and broder 1993 cumulatively these studies suggest that understanding the determinants of coauthorship is important for evaluating the sources and the extent of gender inequity in the profession prior work on coauthorship behavior has analyzed patterns over time and across disciplines several studies including hudson 1996 mcdowell and melvin 1983 and barnett et al

exchange rate and wage price dynamics a theoretical analysis and an econometric investigation abstract this paper is an attempt to analyze inflation dynamics in a small open economy as the result of the interaction between wage and price determination behaviors and the interest rate exchange rate feedback in the context of dornbusch s model an extended version of this model is specified and analyzed formally then the model is estimated for five oecd countries using a full information maximum likelihood technique finally simulations of the effect of monetary shocks are presented for four countries

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

how might china achieve its 2020 emissions target a scenario analysis of energy consumption and co2 emissions using the system dynamics model abstract according to the chinese government s co 2 reduction commitment the production and consumption of traditional and renewable energy in china from 2001 to 2012 this paper forecasts the energy consumption gross co 2 emissions and co 2 emission intensity in china from 2013 to 2020 via system dynamics simulation coupled with the energy system and renewable energy policy factors the effects of different economic growth rates and policy factors on the energy consumption were estimated the results showed that in different economic growth rates scenarios total energy consumption and co 2 emissions increased by 36 140 75 kwh and more than 10 000 billion kg in 10 gdp growth rate scenario than in the 7 scenario in 2020 the co 2 emission per gdp decreased by 52 in 2020 as compared to 2005 under the scenario of 10 gdp growth rate under different renewable energy policy factors scenarios the coal energy consumption decreased by 2 3 in scenario of 5 policy factor as compared to 1 policy factor scenario the co 2 emissions reduced by 3321 94 billion kg in 2020 under the scenario of 5 policy factor as compared to that in the scenario of 1 policy factor the co 2 emission per gdp reduced by 47 50 based on the 2005 level in different scenarios of renewable energy policies we found that with an increase in gdp total energy consumption and co 2 emissions increased in the base scenario higher economic growth rates led to an increase in energy consumption including both the traditional and renewable energy resources in stark contrast to total co 2 emission however co 2 emission intensity decreased with an increase in economic growth rate the renewable energy policy improved the renewable energy development reduced co 2 emissions and co 2 emission intensity it was more effective in energy saving and co 2 reduction than the high growth rate scenarios the results indicated that china is highly likely to achieve its co 2 emission reduction goal under different simulated scenarios besides the energy distribution was similar in different scenarios coal was the major energy source which amounted to more than 70 of the total energy consumption finally we conclude with important policy implications according to our simulations results

relative price dispersion and economic shocks an inventory adjustment approach the issue of relative price dispersion rpd has gained prominence in recent years as the economy was subject to economic shocks and to high and variable levels of inflation the concern about the increased rpd was due to its potentially harmful effect on the economy recently blejer and leiderman 4 evaluated empirically the effect of rpd on economic activity in the postwar united states and found that increased rpd leads to a decrease in the level of output and to an increase in the rate of unemployment israelsen and mcdonald 13 showed in a partial equilibrium context that when wage changes are firmly linked to the general price level and labor mobility between markets or industries is limited an increase in rpd may lead to increasing unemployment pischer 10 suggested that rpd is not necessarily harmful but when coupled with unexpected inflation it may be associated with information confusion leading to a loss through the misallocation of resources these concerns have raised the interest in understanding the factors causing and affecting rpd both theoretically and empirlcally the prevailing theoretical explanations of the factors affecting rpd are based on two main approaches c ne approach is based on misinformation type models inspired by lucas s work 14 where individuals are confused between aggregate shocks and relative marketspecific ones barro 3 and cukierman and wachtel 9 have proposed that the greater the vanance of the aggregate shocks the greater the rpd barro 3 pp

gender differences in first jobs for economists over the last several decades women have made substantial progress into traditionally maledominated professions reflecting this trend much recent research has focused on explaining the choice of profession and the gender composition of the workforce 5 23 16 however a focus on occupation choice may conceal interesting patterns within professions because a profession can include a number of different job types with a distinct mix of professional activities the dual labor market phenomenon of primary and secondary jobs may also be present although perhaps to a lesser extent within a particular profession 17 gender differences in composition of employment among the various jobs within a profession could thus affect the status pay and advancement of women in the occupation if women primarily place in secondary type jobs the advantages of entering a profession will be lower for women relatively little is known about career choice within a profession 15 in this paper we model the first job choice of economists among several careers and use data on new ph d economists over the last thirty years to examine whether career choices differ by gender over a period of low but increasing representation of women an advantage of our single profession analysis is that it contains a relatively homogeneous set of workers with quantitative human capital measures that other studies of job choice suggest are important 7 there is significant variation in career choices available within economics that permits possible market segmentation 2 there are research and teaching academic jobs and the government and private sectors employ large numbers of economists we find significant structural differences in the placements of male and female economists indicating that the choices of female economists differ from those of their male counterparts both within academia and between this and other sectors the economics profession provides a useful background to examine gender differences in the career choices of professionals in a male dominated occupation over the last 30 years the average number of ph d s conferred annually in the u s has increased from approximately 300 to over 800 reflecting increased opportunities for economists within economics departments and expansion of other academic government and private sector jobs at the same time the proportion

who shapes china s carbon intensity and how a demand side decomposition analysis abstract as national efforts to decouple carbon emissions from economic growth intensify policymakers need more specific sub national information about the sources and reduction potentials of carbon intensity this study presents a demand side decomposition of china s carbon intensity to its regions final demand types and economic sectors based on a predefined aggregate embodied intensity aei indicator i e the ratio of embodied emissions to embodied value added we find that china s carbon intensity has been largely shaped by developed provinces capital investment demand and the construction sector however less developed provinces consumption demand and the services sector have played increasingly important roles wealthy provinces generally experienced much lower aeis and higher aei reductions compared to poor provinces from 2007 to 2012 mainly owing to the provincial differences in final demand structure and sectoral structure coastal region s emission reduction efforts at both production and demand sides were the main contributor to china s decrease in carbon intensity during the period while interior region s structural degradation in demand partially offset the decrease our results suggest that allocating national carbon intensity targets based on aei and adjusting the final demand structure of central western provinces would greatly benefit for china to achieve its ambitious carbon intensity target by 2030

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

changes in the male female wage gap 1976 85 this study uses detailed information on work experience tenure and on the job training collected in the 1976 and 1985 questionnaires of the panel study of income dynamics to account for changes in wage differentials between white men and white women over these nine years decompositions of changes in the wage gap are used to illustrate the contribution of individual factors between 1976 and 1985 the wage gap between white men and women narrowed by approximately 4 percent this study finds that nearly 50 percent of this reduction was due to average changes in job tenure and other work history variables over this period

integrating sustainable chain management with triple bottom line accounting abstract triple bottom line accounting is widely advanced as a way in which firms can realise broader societal objectives in addition to increasing shareholder value in our analysis of the australian economy we integrate financial input output tables that describe the interdependencies between economic sectors with national social and environmental accounts to construct numerate triple bottom line accounts for 135 discrete sectors the accounts are portrayed against the numeraire of one dollar of gdp thus for a sector of the economy financial aspects of performance can be expressed for example as dollars of export earnings per dollar of gdp social aspects such as employment can be portrayed as minutes of employment generated per dollar greenhouse issues can be portrayed as kilograms of carbon dioxide emitted per dollar since these indicators of triple bottom line performance are referenced against financial units and are consistent with the system of national accounts they can be applied to financial accounts of a firm a service or a product and allow a robust triple bottom line account to be developed across a range of scales the critical advantage of this approach is that it includes both the direct or immediate effects as well as the indirect or diffuse effects associated with a large and distant chain of supply paths the incorporation of most indirect or upstream effects therefore expands the range of issues and effects within the analytical boundary and also includes imports and exports both products and firms can then be assessed properly in sustainable chain management scm terms thus a firm that uses a key intermediate input that requires a large amount of water for example cannot hide the environmental implications since they are revealed in the analysis of the full production chain this revelation can also underpin progress when firms acknowledge both the direct and indirect effects and improve their selection of key inputs on a wider range of criteria rather than on price alone our analysis is well developed at the economic sector level for australia and is also being applied to number of government institutions firms and individual products before the full benefits of numerate triple bottom line accounting can be applied to the equity issues of globalisation trade interdependencies between groups of typical countries will have to be analysed using these whole economy approaches this will allow country specific intensities to be applied to important items in the international production chain

not by productivity alone how visibility and specialization contribute to academic earnings the popular adage publish or perish has long defined individual career strategies as well as scholarly investigations of earnings inequality in academe as researchers have relied heavily on rese

promises and pitfalls in environmentally extended input output analysis for china a survey of the literature abstract as the world s largest developing economy china plays a key role in global climate change and other environmental impacts of international concern environmentally extended input output analysis ee ioa is an important and insightful tool seeing widespread use in studying large scale environmental impacts in china calculating and analyzing greenhouse gas emissions carbon and water footprints pollution and embodied energy this paper surveys the published articles regarding ee ioa for china in peer reviewed journals and provides a comprehensive and quantitative overview of the body of literature examining the research impact environmental issues addressed and data utilized the paper further includes a discussion of the shortcomings in official chinese data and of the potential means to move beyond its inherent limitations

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

the effect of gender sorting on propensity to coauthor implications for academic promotion a cohort sample of ph d economists indicates a significant propensity for researchers to select coauthors of the same sex this gender sorting contributes to lower article production for women further we find evidence of bias in academic promotion when single authored and coauthored articles carry the same weight in promotion and salary decisions the evidence explains in part why women academics wait longer for promotion and are not as likely to be promoted as men among the effects of gender sorting is self selection of women into larger departments where they are more likely to find colleagues of the same sex

gender and promotion in the economics profession the authors use unique panel data on american economic association members to test for gender differences in promotion in a profession with a well defined promotion and job hierarchy and in which men and women exhibit similar labor market attachment the results suggest that over the period from the 1960s through the early 1980s female economists had lower levels of professional attainment and career advancement than did their male colleagues with similar attributes these gender differences remain in evidence despite controls for unobserved heterogeneity and self selection between academic and non academic jobs there is evidence however that promotion prospects for female economists significantly improved during the 1980s not only at all ranks but also within both ph d granting institutions and non ph d granting institutions in fact the results reveal no unexplained gender specific differences in promotion by the end of the 1980s

the gender salary gap in british academia this paper considers salary determination and the gender salary gap in the academic labour market utilizing a particularly detailed data set of academics from five old established universities results reveal an aggregate gender salary differential for academic staff of 15 most of this differential can however be explained by our model evidence suggests a limited opportunity for female academics to combine career and family despite the flexibility of an academic job and emphasizes the importance of mobility to the male career publication record is found to be an important determinant of salary

the output inflation relationship abstract this paper shows how the optimal pricing and production policy of a multiperiod profit maximizing firm under demand and output disturbances leads in the aggregate to a positive relationship between production and price deviations from the expected level as depicted by the lucas type supply function the pricing and production decisions are made simultaneously by market agents who base their decisions on the same rational expectations before the disturbances are realized here although the planned production is not affected by the price deviations there is still a contemporaneous positive relationship between them where both production and prices reflect the firm s adjustment to unexpected levels of inventory we show that this positive relationship prevails even when the production decisions are made ex ante based only on expectations before the realization of the random shocks a closed form linear approximation for the supply function is derived which captures the effect of both systematic and unsystematic economic disturbances finally we present an empirical test which supports our assertion that our inventory adjustment mechanism contributes to the creation of the positive relationship between production and price deviations

physical and monetary input output analysis what makes the difference abstract a recent paper in which embodied land appropriation of exports was calculated using a physical input output model ecological economics 44 2003 137 151 initiated a discussion in this journal concerning the conceptual differences between input output models using a coefficient matrix based on physical input output tables piots in a single unit of mass and input output models using a coefficient matrix based on monetary input output tables miots extended by a coefficient vector of physical factor inputs per unit of output in this contribution we argue that the conceptual core of the discrepancies found when comparing outcomes obtained using physical vs monetary input output models lies in the assumptions regarding unit prices and not in the treatment of waste as has been claimed ecological economics 48 2004 9 17 we first show that a basic static input output model with the coefficient matrix derived from a monetary input output table is equivalent to one where the coefficient matrix is derived from an input output table in physical units provided that the assumption of unique sectoral prices is satisfied we then illustrate that the input output tables that were used in the original publication do not satisfy the assumption of homogenous sectoral prices even after the inconsistent treatment of waste in the piot is corrected we show that substantially different results from the physical and the monetary models in fact remain finally we identify and discuss possible reasons for the observed differences in sectoral prices faced by different purchasing sectors and draw conclusions for the future development of applied physical input output analysis

temporal and spatial variations in consumption based carbon dioxide emissions in china china s co2 emissions have sharply increased in recent years with soaring economic development and urbanization consumption based accounting of co2 emissions could provide new insights for allocating regional mitigation responsibility and curbing the emissions a multi regional input output model is used to study the trends and disparities of consumption based emissions from chinese provinces during the period 2002 2007 results show that china s consumption based co2 emissions grew from 3549 mt in 2002 to 5403 mt in 2007 with an annual average growth rate of 8 8 the annual growth rate in the richer eastern region was over 10 because of a rapid increase in capital investment and the growth of urban consumption consumption based co2 emissions embodied in interprovincial trades contributed only 10 351 mt to the national total of such emissions in 2002 but 16 864 mt in 2007 given low per capita emissions currently china s consumption based emissions have much room to grow because of further development of urbanization and stimulation of domestic demand the government should pay greater attention to controlling co2 emissions from a consumption based perspective 2014 elsevier ltd

gender and racial earnings differentials in academic labor markets this study estimates earnings differentials across racial and gender groups among college faculty and decomposes these differentials into the components attributable to differences in individual and institutional characteristics and that which remains unexplained we find that white females earn approximately 4 percent less than white males black males earn 7 4 percent more black females earn one percent more hispanic males earn 2 7 percent more hispanic females earn 1 7 percent less and asian males earn 7 7 percent more than comparable white males we also find a significant earnings penalty for being a naturalized citizen or noncitizen versus an u s born citizen

the influence of gender on faculty salaries in the united states 1969 89 this study estimates the earnings differential between the male and female faculty in the united states over a period of two decades 1969 1989 five micro level data sets are used for this purpose a modified version of the widely used oaxaca model is used in the estimations it is found that the racial earnings gap narrowed considerably more than did the gender earnings differential over this period a higher male female earnings gap at the professor level relative to junior ranks suggests that relatively recent entrants in the academic labour market face a less discriminatory environment than did their predecessors a controversial finding is that the discriminatory component of the earnings differential between male and female faculty fell between 1969 and 1984 but rose thereafter

women s wages in women s work a u s canada comparison of the roles of unions and public goods sector jobs in this paper we investigate the mechanism by which the femaleness of occupations has a negative effect on women s wages we relate us canada differences in labor market institutions the returns to skills and other dimensions of the wage structure such as occupational rents to corresponding differences in the rewards to female jobs our analysis which uses us data from the cps org for 1988 and canadian data from the 1988 lmas uncovers intriguing us canada differences in the effect of occupational gender composition on women s wages the estimated effect for canadian women is generally small and not statistically significant while estimates for american women are relatively large and comparable to the evidence in previous studies relating these differences to cross country variation in other wage determinants reveals that higher rates of unionization and the higher occupation wage effects for certain public good sector jobs such as educational services work to the advantage of canadian women we also find that the relatively higher pay of integrated jobs in the united states helps account for the larger negative effect of gender composition on women s wages in this country dans cet article nous etudions le mecanisme par lequel le taux de feminite des occupations peut avoir un effect negatif sur les salaires des femmes nous utilisons une comparaison internationale etats unis canada pour relier les differences institutionnelles du marche du travail les differences dans les rendements des qualifications et dans d autres dimensions de la structure salariale comme les rentes occupationnelles a des differences dans la remuneration des emplois a predominance feminine notre analyse qui utilise les donnees americaines provenant des cps org pour 1988 et les donnees canadiennes provenant de l enquete sur l activite aussi pour 1988 demontre l existence de differences interessantes entre les etats unis et le canada quant a l effet du taux de feminite des occupa this abstract was borrowed from another version of this item

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

carbon dioxide mitigation target of china in 2020 and key economic sectors china proposed a co2 mitigation target in 2020 to deal with anthropogenic global climate change chinese policy makers mainly focus on three factors comprising consumption structure changes energy technology development and new energy increments in addition sectoral co2 reduction is increasingly concerned in the world thus it is significant to investigate integrated impacts of three factors to china s co2 mitigation target as well as to identify key economic sectors for achieving this target in this study energy demand and co2 emission in 2020 are predicted five scenarios are generated to illustrate the contributions of three factors in addition twelve key economic sectors for reducing energy demand and co2 emission are identified from both production and final demand perspectives under integrated impacts of three factors china s co2 intensity per unit gross domestic product in 2020 will decrease by about 43 9 in 2020 than 2005 level in the short term china s co2 mitigation will be highly dependent on energy technology development in the long term it will mainly rely on reshaped consumption structure changes and new energy development in addition china s future policies should focus on 12 identified key economic sectors

structural analysis of material flows in china based on physical and monetary input output models abstract the physical input output pio model has different product flow scopes from the monetary input output mio model using the pio and mio models to analyze the structure of material flows can identify new hotspots for policy decisions over each other however pio models are not well studied in existing studies on the structure of china s material flows this study uses both the pio and mio models to analyze consumption based material flows of chinese sectors and critical supply chain paths leading to china s material flows results show that the pio and mio models validate each other by simultaneously identifying critical sectors and important final demand categories however product prices and the treatment of services lead to different findings based on the mio and pio models compared with the pio model the mio model underestimates the contribution of the construction sector to china s material flows but overestimates that of the equipment and machinery and other services sectors the pio model reveals the higher importance of rural household consumption while the mio model identifies more critical supply chain paths associated with services the pio and mio models can complement each other in the implementation and assessment of environmental measures e g production efficiency improvement

outside offers and the gender pay gap empirical evidence from the uk academic labour market using a unique data source on academic economist labour market experiences we explore gender pay and promotions in addition to earnings and productivity measures we have information on outside offers and perceptions of discrimination we find both a gender promotions gap and a within rank gender pay gap a driving factor may be outside offers men receive more outside offers than women of comparable characteristics and gain higher pay increases in response this may arise due to discrimination we find that perceptions of discrimination and also outside job applications correlate with an individual receiving earnings below that expected given their characteristics

orchestrating impartiality the impact of blind auditions on female musicians a change in the audition procedures of symphony orchestras adoption of blind auditions with a screen to conceal the candidate s identity from the jury provides a test for sex biased hiring using data from actual auditions in an individual fixed effects framework we find that the screen increases the probability a woman will be advanced and hired although some of our estimates have large standard errors and there is one persistent effect in the opposite direction the weight of the evidence suggests that the blind audition procedure fostered impartiality in hiring and increased the proportion women in symphony orchestras

does a gender disparity exist in academic rank evidence from an australian university employing a unique administrative data set on academics from the university of wollongong uow we investigate if women are under represented in academic rank taking into account information on personal characteristics job characteristics education and productivity the results suggest that males have a significant advantage in rank attainment the possession of a phd the number of years of experience and the number of journal articles books book chapters competitive grants and era a ranked articles appear to be important for academic rank attainment a blinder oaxaca decomposition test indicates that both supply side and demand side factors play a role however there is greater support for the endowments argument interviews were conducted in an attempt to explain the results interviews showed that men were more career driven compared to women

unions without rents the curious economics of faculty unions we show that canadian faculty unions have had no effect on university revenues only a small positive effect on earnings a negative effect on research output and lead to earnings redistributions across disciplines and ranks we argue that faculty unions have a negligible positive and often negative effect on average faculty wages because a union that promotes the median faculty member s welfare negotiates wage redistributions and more onerous teaching conditions despite the negative impact these changes have on research output average wages may rise but only because non unionized universities trade off wages against the non pecuniary benefits from research and teaching jel classification i20 j51 j54 syndicats sans rentes l economie singuliere des syndicats de professeurs d universite les auteurs montrent que les syndicats canadiens de professeurs d universite n ont pas eu d effet sur les revenus des universites ont eu seulement un petit effet positif sur les gains un effet negatif sur la production de recherche et qu ils ont entraine une redistribution des gains entre disciplines et entre les professeurs de divers rangs on suggere que les syndicats de professeurs ont eu un effet negligeable positif mais souvent negatif sur le salaire moyen des professeurs parce qu un syndicat qui s attache a promouvoir le mieux etre du professeur median negocie des redistributions de salaires et des t ches d enseignement plus lourdes meme si ces changements ont un effet negatif sur la production de resultats de recherche les salaires moyens peuvent croitre mais seulement parce que les universites non syndiquees negocient des avantages non pecuniaires portant sur la recherche et l enseignement en compensation pour des salaires moindres

china s strategy for carbon intensity mitigation pledge for 2020 evidence from a threshold cointegration model combined with monte carlo simulation methods abstract this paper specifies a nonlinear threshold cointegration to analyze the nonlinear relationship between carbon intensity and economic growth in china the tests and estimated results clearly confirm that fast paced economic growth that is the growth rate of gross domestic product gdp is greater than 9 053 impede the reduction of carbon intensity because it weakens the negative effects of tertiary industry development and energy efficiency on carbon intensity while it also increases the positive effect of unclean energy mix on carbon intensity in order to find a moderate range of economic growth rate that is both beneficial for industrial structuring and energy mix transformation and at the same time facilitate reduction in carbon intensity monte carlo simulations are employed the results show when the growth rate of gdp is between 7 and 8 4 it can promote structural bonus of industrial structure and energy consumption structure on carbon intensity and carbon intensity in 2020 would decline by about 40 60 compared to 2005 level these conclusions mean it is necessary for china to carefully set its economic growth target through transformation and optimization of its economic structure and energy mix in order to continuously reduce carbon intensity

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

male female wage differentials and policy responses without implicating them for any of the contents of the paper i am grateful to the following for helpful discussions or comments andrea beller university of illinois david bloom harvard and columnbia glen cain university of wisconsin ron ehrenberg cornell victor fuchs stanford bob gregory australian national university jonathan leonard university of california berkeley roberta robb brock university and paul weiler harvard financial support of the humanities and social sciences committee of the research board of the universitu of toronto is eratefullu acknowlede ed

changes in carbon intensity in china empirical findings from 1980 2003 china experienced sustainable rapid economic growth over the period 1980 2003 but at the same time energy related carbon intensity showed a downward trend it begs the question therefore what factors were driving this decline in carbon intensity and will this decline be maintained in future moreover what measures can be adopted to ensure a continual decline in carbon intensity these questions led to increased research in the factors governing co2 emission in china this paper quantifies the driving force behind china s primary energy related carbon intensity and measures the material production sectors final energy related carbon intensity our results show that the overwhelming contributor to the decline of energy related carbon intensity was the reduction in real energy intensity however policies that focus only on the decline in energy intensity are insufficient to further decrease carbon intensity the change of primary energy mix can improve the decline of carbon intensity this should focus on the material production sectors development strategies and final energy use greater emphasis should be given to secondary industry which needs national and regional governments policy support

revisiting drivers of energy intensity in china during 1997 2007 a structural decomposition analysis the decline of china s energy intensity slowed since 2000 during 2002 2005 it actually increased reversing the long term trend therefore it is important to identify drivers of the fluctuation of energy intensity we use input output structural decomposition analysis to investigate the contributions of changes in energy mix sectoral energy efficiency production structure final demand structure and final demand category composition to china s energy intensity fluctuation during 1997 2007 we include household energy consumption in the study by closing the input output model with respect to households results show that sectoral energy efficiency improvements contribute the most to the energy intensity decline during 1997 2007 the increase in china s energy intensity during 2002 2007 is instead explained by changes in final demand composition and production structure changes in final demand composition are mainly due to increasing share of exports while changes in production structure mainly arise from the shift of chinese economy to more energy intensive industries changes in energy mix and final demand structure contribute little to china s energy intensity fluctuation from the consumption perspective growing exports of energy intensive products and increasing infrastructure demands explain the majority of energy intensity increase during 2002 2007

optimal strategies for carbon reduction at dual levels in china based on a hybrid nonlinear grey prediction and quota allocation model abstract in this research a hybrid nonlinear grey prediction and quota allocation model hngp qam wasdeveloped for supporting optimal planning of china s carbon intensity reduction at both departmentaland provincial levels in 2020 at such dual levels hngp qam can not only help forecast carbon intensityand its uctuations over the concerned period but also facilitate the identi cation of china s carbonintensity reduction target in 2020 and the corresponding quotas for minimizing the total abatement cost two scenarios were developed based on multiple governmental policies and allocation schemes amongprovinces and departments the results showed that the total abatement cost would be 92 07 and98 93 10 9 as well as 180 57 and 194 19 10 9 rmb it is another shortname for china yuan for pro vincial and departmental allocation schemes under the reduction ratios of 40 and 45 respectively furthermore the west the east and the central china would be allocated the emission assignments thatwould be accounting for 48 53 28 26 and 23 21 of the total national emission reduction respectively the obtained results were particularly useful for multi level governments in providing information toidentify the carbon intensity reduction target conducting emission reduction assignments amongprovinces and departments as well as supporting relevant policy making the results also suggested thatthe developed hngp qam be applicable to similar engineering and planning problems 2014 elsevier ltd all rights reserved

energy consumption carbon emissions and economic growth in china abstract this paper investigates the existence and direction of granger causality between economic growth energy consumption and carbon emissions in china applying a multivariate model of economic growth energy use carbon emissions capital and urban population empirical results for china over the period 1960 2007 suggest a unidirectional granger causality running from gdp to energy consumption and a unidirectional granger causality running from energy consumption to carbon emissions in the long run evidence shows that neither carbon emissions nor energy consumption leads economic growth therefore the government of china can purse conservative energy policy and carbon emissions reduction policy in the long run without impeding economic growth

cracks in the glass ceiling gender and promotion in the economics profession gender differences in promotion within the economics profession have long been a concern of the committee on the status of women in the economics profession cswep in a descriptive analysis of the aea universal academic questionnaire rebecca blank 1996 finds that hires and promotions to the associateand fullprofessor levels have averaged 4 2 and 2 7 percentage points below the share of female assistants and associates professors respectively thus women appear to be underrepresented in senior positions suggesting they may face a glass ceiling this paper uses unique panel data for american economic association aea members to examine formally whether there are differences across gender in promotion probabilities an academic labor market beyond its direct interest to economists is well suited to study possible gender differences in promotion because departments can be ranked within the profession and because professors can be ranked within a department by a welldefined promotion hierarchy a focus on academic economists offers an additional advantage in that on the job productivity can be measured directly by research output other promotion studies have had limited controls for productivity and have used cross sectional data which do not permit controls for unobserved ability e g rudolf winter ebmer and josef zweimuller 1997 failure to account for gender differences in unobserved productivity could produce biased inference prior promotion studies also have generally relied on job advancement indexes that limit the distinction between initial job assignment i e an

salary differentials by sex in the academic labor market this paper examines faculty time allocation decisions that are fundamental to the functioning of a university a random utility approach yields a grouped data multinomial logit model and predicts that time allocation decisions depend systematically on

updating estimates of male female salary differentials in the academic labor market abstract i estimate the male female salary gap and salary discrimination for faculty between the years 1968 and 1989 estimates of both these quantities fell substantially in the 1970 s with no further improvement in 1984 and 1989

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

carbon dioxide emission drivers for a typical metropolis using input output structural decomposition analysis as the capital of china beijing is regarded as a major metropolis in the world study of the variation in temporal co2 emissions generated by the driving forces in beijing can provide guidance for policy decisions on co2 emissions mitigation in global metropolises based on input output structural decomposition analysis io sda we analysed the driving forces for the increment in co2 emissions in beijing from both production and final demand perspectives during 1997 2010 according to our results the co2 emission growth in beijing is driven mainly by production structure change and population growth partly offset by co2 emission intensity reduction as well as the decline in per capita final demand volume during the study period final demand structure change has a limited effect on the change in the co2 emissions in beijing from the final demand perspective urban trades urban residential consumption government consumption and fixed capital formation are mainly responsible for the booming emissions this study showed how the top down io sda methodology was implemented on a city scale policy implications from this study would be helpful for addressing co2 emissions mitigation in global capital cities and metropolises

entry level salaries of academic economists does gender or age matter i introduction since the mid 1970s earnings differentials in academic labor markets have been extensively investigated with particular attention focused on salary differentials between males and females the leading studies use similar methodologies but differ in terms of the time period analyzed data sources and whether a single academic discipline or multiple disciplines are considered for example johnson and stafford 1974 investigate several academic professions in 1970 jusenius and scheffler 1981 consider a single discipline economics in 1973 and include a cross section of universities and professorial ranks as well as race several investigators including katz 1973 hirsch and leppel 1982 rickman 1984 and raymond sesnowitz and williams 1988 focus on a single college or university and include diverse academic disciplines the latter two studies raise the question of whether gender continued to matter in academic labor markets in the 1980s and reach opposite conclusions a consistent finding transcending early studies of academic labor markets is that earnings differentials are smallest between men and women who are at the beginning of their careers for example johnson and stafford in a widely cited study state the most important finding is that the salaries of females start out at not much less than those of males 4 to 11 percent in the six disciplines in our sample and then decline 1974 901 this paper investigates entry level salaries in a single academic discipline by considering a cross section of newly hired economists the primary source of labor market information is a unique survey of entry level salaries in the 1987 88 academic year it might seem that by the late 1980s gender differentials should have disappeared at the entry level but like johnson and stafford s 1974 earlier result our survey reveals newly hired females received 1060 3 4 percent less than males our principal purpose is to determine whether this gender differential and the effects of age are significant once other determinants of earnings are taken into account for example we consider and control for terminal degree status the quality of the ph d granting department field of specialization highest degree offered by the hiring department differences in cost of living across areas and other institutional factors that can influence beginning entry level salaries we first describe the data set developed primarily from a survey which is used to estimate entry level earnings equations we also briefly compare our survey to other surveys providing information on market outcomes for economists we then present estimates of the determinants of entry level salaries and discuss the influence of gender age and other determinants of earnings ii the survey a total of 469 u s economics departments were surveyed in the summer and fall of 1987 with 258 departments responding 55 percent 1 the 1987 88 academic year salary of each new hire was requested of each department demographic information age sex and human capital characteristics ph d granting university primary field of specialization and degree status were also requested for each new hire in addition the survey included questions on whether the hiring college university is privately or publicly supported the administrative reporting channel of the economics department highest degree offered and number of entry level persons hired the identities of the hiring department and the university at which the newly hired economist did his or her graduate work are used to construct two measures of quality the quality of the department where the ph d work was done is the first measure and the quality of the hiring department is the second 2 the survey was designed to provide microdata on individual entry level economists for the purpose of estimating earnings equations in an effort to maximize responses the questionnaire was intentionally brief only questions directly relevant to estimating the earnings equation of entry level economists were included

cohort patterns in canadian earnings assessing the role of skill premia in inequality trends in this paper we document the pattern of change in age earnings profiles across cohorts and evaluate its implications using synthetic cohorts from the survey of consumer finances over the period 1971 to 1993 wwe show that the age earnings profiles of canadian men have been deteriorating for more recentcohorts in comparison with older cohorts we find this pattern for both high school and university educated workers in no case do we find evidence that the return to gaining experience has been increasing over time nor do we find increased within cohort dispersion of earnings we view these findings as conflicting with the hypothesis that increased skill premia largely explain the observed increase in dispersion of male weekly earnings jel classification j31 o33 ce memoire documente le pattern de changements dans les relations ges gains d une cohorte a l autre et en analyse les implications utilisant des cohortes synthetiques pour la periode 1971 93 on montre que les profils ges gains des hommes au canada se sont deteriores dans les cohortes les plus recentes on ne trouve pas de resultats qui montreraient que le rendement sur l experience accumulee s est accru dans le temps ou qu il y a dispersion accrue des gains a l interieur des cohortes les auteurs suggerent que ces resultats contredisent l hypothese que des primes accrues pour les habiletes expliqueraient l accroissement qu on a observe dans la dispersion des gains des hommes au canada