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

the role of the desire for union status in the decision to enter local government job queues the us evidence following a two stage bivariate probit approach this study estimates local government and union job queues in a simultaneous equations framework by relaxing the restrictive assumption of independence between the worker s queuing and the employer s hiring decisions it overcomes a major limitation of most of the earlier job queue estimates the results indicate that the worker s queuing decision for local government jobs in the united states is determined partly by the desire for unionized employment the converse however is not true seniority with the current employer emerges as a significant determinant of both workers queuing and employers hiring decisions furthermore local governments act as model employers by being more likely to hire minorities and females from the pool of job applicants

why federal workers don t quit quit rates in the federal government are abnormally low some economists and the federal government itself have taken this to mean that federal wages are too high this paper provides an alternative explanation it shows that the timing of compensation across a career as well as its level affect quit rates pensions in particular impose large penalties on workers who quit early and the portion of federal pay in the form of pensions is very high this feature of the federal pay structure may explain its abnormally low quit rate as a general proposition quit rates are poor indices for judging pay adequacy

trying to explain home bias in equities and consumption investors hold a substantially larger proportion of their wealth portfolios in domestic assets than standard portfolio theory would suggest a phenomenon called equity home bias in the absence of this bias investors would optimally diversify domestic output risk using foreign equities therefore consumption growth rates would tend to co move across countries even when output growth rates do not empirically however consumption growth rates tend to have a lower correlation across countries than do output growth rates a phenomenon i call consumption home bias in this paper i discuss these two biases and their potential relationship as suggested by the literature

information quality and market efficiency the purpose of this paper is to analyze the optimal individual behavior in acquiring infor mation and to determine the amount of information incorporated in a stock at equilibrium in the presence of a cost schedule in acquiring information our paper shows that at equi librium the cost to acquire information that is not already incorporated in the price de pends only on the representative investor s risk preferences it follows that the marginal information costs are the same across all stocks at equilibrium even though the stock s information costs schedules may differ this suggests that the prices of small stocks may not incorporate all publicly available information this paper also provides empirical evi dence that newspapers publication of publicly available information can affect the stock prices

ambiguity aversion and comparative ignorance decisions under uncertainty depend not only on the degree of uncertainty but also on its source as illustrated by ellsberg s observation of ambiguity aversion in this article we propose the comparative ignorance hypothesis according to which ambiguity aversion is produced by a comparison with less ambiguous events or with more knowledgeable individuals this hypothesis is supported in a series of studies showing that ambiguity aversion present in a comparative context in which a person evaluates both clear and vague prospects seems to disappear in a noncomparative context in which a person evaluates only one of these prospects in isolation

earnings skewness and analyst forecast bias abstract we argue that if analysts objective is to provide the most accurate forecast by minimizing the mean absolute forecast error then the optimal forecast is the median instead of the mean earnings forecast bias is observed when the median is different from the mean in a skewed earnings distribution thus part of the observed analyst forecast bias could be a result of analysts efforts to improve forecast accuracy when the earnings distribution is skewed we find that earnings skewness is significantly related to analyst forecast bias we also provide evidence that the market adjusts for part of the skewness induced bias

union nonunion wage differentials in the public administration educational and private sectors 1970 1983 over the past thirty years union membership and bargaining activity in the united states has been declining in the private sector and rising in the public sector the authors use two large micro databases to estimate changes in the union wage premium among public administration education and private sector workers for the decade of the 1970s and early 1980s their empirical analysis indicates that the union relative wage effects continue to be lower in the public sector than in the private sector despite the relative gains in public sector union membership and bargaining activities copyright 1987 by mit press

government employment and the provision of fringe benefits this study uses individual level data from the united states to examine the influence of government employment on the provision of five major fringe benefits four of the five benefits are more likely to be provided to government workers than to their private sector counterparts unlike wage comparisons which typically find substantial overpayment only for federal workers the findings suggest that past wage differentials underestimate the true compensation advantage enjoyed by government workers

the co2 growth nexus revisited a nonparametric analysis for the g7 economies over nearly two centuries abstract using a long dataset and some recently popularized nonparametric econometric techniques this study revisits the nexus between economic growth and carbon dioxide co 2 emissions for the g7 countries over nearly two centuries the use of nonparametric modelling is warranted by the fact that long historical time series are often subject to structural breaks and other forms of nonlinearity over the course of time we employ nonparametric cointegration and causality tests along with the cross validated local linear regression analysis and validate the existence of the environmental kuznets curve in six of the g7 countries canada france germany italy u k and the u s and the only exception is japan our empirical analysis also finds co 2 emissions and economic growth to be cointegrated and closely interrelated in the granger sense our results are robust and highlight the nonlinear causal relationship between the two variables

the information content of losses abstract this study hypothesizes that because shareholders have a liquidation option losses are not expected to perpetuate they are thus less informative than profits about the firm s future prospects the results are consistent with the hypothesis they also show that the documented increase in the earnings response coefficent as the cumulation period increases appears to be due exclusively to the effect of losses the liquidation option effect extends to profitable cases where earnings are low enough to make the option attractive alternating explanations for the low informativeness of losses such as mean reversal of earnings are not supported by the tests

establishment size public administration and government wage differentials abstract this study presents new and more comprehensive estimates of government wage differentials they improve on previous estimates by including the influence of establishment size and by estimating separate differentials for public administrators and non administrators these improvements result in a more complex set of differentials and a more sophisticated understanding of government wage patterns

do analysts herd an analysis of recommendations and market reactions this article develops and implements a new test to investigate whether sell side analysts herd around the consensus when they make stock recommendations our empirical results support the herding hypothesis stock price reactions following recommendation revisions are stronger when the new recommendation is away from the consensus than when it is closer to it indicating that the market recognizes analysts tendency to herd we find that analysts from larger brokerages analysts following stocks with smaller dispersion across recommendations and analysts who make less frequent revisions are more likely to herd the author 2009 published by oxford university press on behalf of the society for financial studies all rights reserved for permissions please e mail journals permissions oxfordjournals org oxford university press

fringe benefits and labor mobility interindustry factor mobility is a crucial determinant of the income distribution effects of exogenous changes in relative commodity prices this examination of interindustry variation in wages and profits using data from manufacturing industries from

investor reaction to celebrity analysts the case of earnings forecast revisions we examine the effects of analysts celebrity on investor reaction to earnings forecast revisions we measure celebrity as the quantity of media coverage analysts receive in sources included in the dow jones interactive database and find that media coverage is positively related to investor reaction to forecast revisions the effect of celebrity on the reaction to forecast revisions remains significant after controlling for forecast performance variables examined in prior studies ex post forecast accuracy ex ante accuracy award status and other variables shown to be related to forecast accuracy while these results are consistent with the familiarity of the analyst s name affecting the market reaction we cannot rule out that our measure of celebrity is correlated with error in the performance measures we examine and or correlated with other unexamined dimensions of forecast performance a content analysis of a random subsample of the media coverage of our sample analysts suggests that our

causality between income and emission a country group specific econometric analysis abstract empirical studies of the environmental kuznets curve ekc examine the presence or otherwise of an inverted u shaped relationship between the level of pollution and the level of income customarily in the diagram of ekc the level of income is shown on the horizontal axis and that of pollution on the vertical axis thus it is presumed that the relationship between income and pollution is one of unidirectional causality with income causing environmental changes and not vice versa the validity of this presumption is now being questioned it is being asserted that the nature and direction of causality may vary from one country to the other in this paper we present the results of a study of income co 2 emission causality based on a granger causality test to cross country panel data on per capita income and the corresponding per capita co 2 emission data briefly our results indicate three different types of causality relationship holding for different country groups for the developed country groups of north america and western europe and also for eastern europe the causality is found to run from emission to income for the country groups of central and south america oceania and japan causality from income to emission is obtained finally for the country groups of asia and africa the causality is found to be bi directional the regression equations estimated as part of the granger causality test further suggest that for the country groups of north america and western europe the growth rate of emission has become stationary around a zero mean and a shock in the growth rate of emission tends to generate a corresponding shock in the growth rate of income in contrast for the country groups of central and south america oceania and japan a shock in the income growth rate is likely to result in a corresponding shock in the growth rate of emission finally causality being bi directional for the country groups of asia and africa the income and the emission growth rates seemed to reinforce each other

income and emission a panel data based cointegration analysis this paper presents the results of an investigation of the causality issue of incomeemission relationship based on time series econometric techniques of unit root test cointegration and related error correction model for a panel data set here the nature of causality between per capita co2 emission pcco2 and per capita gdp pcgdp has been examined using a cross country panel data set covering 88 countries for the period 1960 90 using the panel unit root test procedure of im et al 1997 ips we have found that the hypothesis of unit root i e non stationarity of the time series of pcgdp and pcco2 can not be rejected for individual country groups as both the variables are found to follow i 1 process we next have performed the panel data co integration test and finally we have estimated the ecm for these country groups for which significant income emission cointegration was obtained to explore the nature of dynamics implicit in the given panel data set our findings suggest that there is more or less a bi directional causal relationship between income pcgdp and co2 emission pcco2 for africa central america america as a whole eastern europe western europe europe as a whole and the world as a whole that means the movement of the one variable directly affects the other variable through a feedback system thus the policy makers should be cautious to make proper decision about the control of emission level

linear and nonlinear causality between sectoral electricity consumption and economic growth evidence from taiwan this study investigates the linear and nonlinear causality between the total electricity consumption tec and real gross domestic production rgdp unlike previous literature we solve the undetermined relation between rgdp and electricity consumption by classifying tec into industrial sector consumption isc and residential sector consumption rsc as well as investigating how tec isc and rsc influence taiwan s rgdp by using the granger s linear causality test it is shown that i there is a bidirectional causality among tec isc and rgdp but a neutrality between rsc and rgdp with regard to the linear causality and ii there is still a bidirectional causality between tec and rgdp but a unidirectional causality between rsc and rgdp with regard to the nonlinear causality on the basis of i and ii we suggest that the electricity policy formulators loosen the restriction on isc and limit rsc in order to achieve the goal of economic growth

gender the welfare state and public employment a comparative study of seven industrialized countries using data from the luxembourg income study lis the authors explore the influence of government employment on the gender gap in earnings in seven countries they address four questions on the effects of public sector employment on the gender gap in earnings 1 do governments offer jobs that are comparatively high paying 2 does public employment benefit some workers such as low paid workers more than others 3 are public sector employment advantages explained by differences in worker characteristics and the occupational mix 4 what is the effect of public employment its extent and its pay structure on gender gaps in wages the results indicate marked variation across liberal conservative and social democratic welfare states but reveal a number of uniformities as well in most of the seven countries in the sample public sector workers earn more on average than do workers in the private sector and most earnings advantages are concentrated on the low end of the earnings distribution the effect of public employment on the overall gender gap in wages is limited in most countries the authors discuss the implications of these results for theory and research on gender and the welfare state

the effect of unionism on fringe benefits this study analyzes the impact of unionism on fringes paid to production workers using data on individual establishments it compares fringe expenditures in establishments having the same level of compensation per hour and finds that unionism raises the share of compensation allotted to fringes particularly to pensions vacation pay and life accident and health insurance in addition since unionism also raises the straight time wage rate itself a prime determinant of expenditures on fringes unionism has a very sizeable impact on total fringe expenditures as well as on the fringe share of compensation the union fringe effect exceeds in percentage terms the union wage effect and is sufficiently large to suggest that standard union wage studies understate the union effect on total compensation the study also compares the fringe expenditures of production and non production workers within the same establishment controlling for within establishment pay policies the findings suggest that the pres

reputation and performance among security analysts members of the institutional investor all american research team supply more accurate earnings forecasts than other analysts when forecasts are matched by the corporation followed and by the date of brokerage house issuance this contemporaneous advantage is complemented by a timing advantage all americans supply forecasts more often than other analysts stocks returns immediately following large upward forecast revisions suggest that all americans impact prices more than other analysts however there is virtually no difference in returns following large downward revisions nevertheless the collective results suggest a positive relation between reputation and performance and assuming that all americans are better paid pay and performance

compelling evidence of an environmental kuznets curve in the united kingdom the objective of this paper is to investigate the relationship between per capita emissions hbox co 2 and hbox so 2 and economic growth per capita gdp in the uk using a long span of data this paper examines the existence of a non linear relationship between emissions and economic growth using methods that do not restrict the relationship to be any particular shape the methodology employs instrumental variables in the place of per capita gdp to deal with potential concerns about errors in variables and endogeneity the empirical results provide strong support for the environmental kuznets curve with estimated turning points in 1966 and 1967 for hbox co 2 and hbox so 2 respectively these turning points correspond roughly with the introduction of the clean air act in the uk as well as the reduction in the use of coal as an energy source and together they provide a snapshot of the forces driving the turning points the paper continues by further investigating the temporal behavior of the inverted u shaped relationship the findings indicate that if emissions and per capita gdp deviate from their long run relationship emissions do the heavy lifting to restore the system to equilibrium this result is intuitively pleasing because mitigation is directly affected by legislation as opposed to declining economic growth

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

economic growth and energy consumption revisited evidence from linear and nonlinear granger causality the relationship between energy consumption and economic growth is considered as an imperative issue in energy economics previous studies have ignored the nonlinear behavior which could be caused by structural breaks in this study both linear and nonlinear granger causality tests are applied to examine the causal relationship between energy consumption and economic growth for a sample of asian newly industrialized countries as well as the u s this study finds evidence supporting a neutrality hypothesis for the united states thailand and south korea however empirical evidence on philippines and singapore reveals a unidirectional causality running from economic growth to energy consumption while energy consumption may have affected economic growth for taiwan hong kong malaysia and indonesia policy implications are also discussed

do security analysts improve their performance with experience we investigate if sell side security analysts generate more accurate quarterly earnings forecasts and more profitable stock recommendations as their experience following a specific firm increases we measure firmspecific experience as the number of prior quarters for which the analyst has issued an earnings forecast for the firm if analysts improve their forecasting performance with repetition as suggested by the learning by doing lbd model an analyst s earnings forecasts will become more accurate with experience prior empirical work provides mixed evidence on whether analysts exhibit individual forecasting performance differences e g butler and

government wage differentials a sample selection approach this paper uses the econometrics of sample selection to estimate the net wage differential between workers in the public and private sectors of the united states the results indicate workers self select by systematically locating in the sector which offers them the higher expected wage as a consequence previous research based on the assumption of random allocation between sectors is subject to serious specification bias the present estimation indicates government workers are slightly underpaid taking into account their observed characteristics and the selection process

conflict of interest and the credibility of underwriter analyst recommendations brokerage analysts frequently comment on and sometimes recommend companies that their firms have recently taken public we show that stocks that underwriter analysts recommend perform more poorly than buy recommendations by unaffiliated brokers prior to at the time of and subsequent to the recommendation date we conclude that the recommendations by underwriter analysts show significant evidence of bias we show also that the market does not recognize the full extent of this bias the results suggest a potential conflict of interest inherent in the different functions that investment bankers perform

do star analysts know more firm specific information evidence from china abstract using a unique database in china we extend the literature to further distinguish the information production role of star vs non star analysts we confirm the general conclusion of a positive association between analyst coverage and stock return synchronicity measured by a firm s r2 in china the findings from star analysts however show that star analyst coverage actually decreases stock return synchronicity we contend that the firm specific human capital in star analysts helps the analysts overcome the challenges of information production in an emerging market the superior firm specific human capital argument of star analysts is further supported by the negative association of star analysts firm specific experiences and stock return synchronicity our conclusions are robust to different specifications of star analyst presence and different definitions of analysts firm specific experiences we also find that star analysts exhibit a more accurate earnings forecast than non star analysts

security analysts career concerns and herding of earnings forecasts several theories of reputation and herding see e g scharfstein and stein 1990 suggest that herding among agents should vary with career concerns our goal in this paper is to document whether such a link exists in the labor market for security analysts specifically we look at the relationship between an analyst s job tenure a proxy for career concerns and various measures of stock earnings forecast performance we establish the following key results 1 older analysts are more likely to produce earnings forecasts of firms before younger ones 2 their forecasts also deviate more from the consensus forecast than their younger counterparts we argue that these results are consistent with some reputational models of herding we also establish a number of auxiliary findings regarding the relationship between forecast accuracy and frequency of forecast revisions with job tenure

self selection and the forecasting abilities of female equity analysts this paper investigates whether there are systematic differences between the forecasting style and abilities of female and male analysts and whether market participants recognize these differences my key conjecture is that only female analysts with superior forecasting abilities enter the profession due to a perception of discrimination in the analyst labor market consistent with this conjecture i find that female analysts issue bolder and more accurate forecasts and their accuracy is higher in market segments in which their concentration is lower further the stock market participants are aware of the male female skill