factors affecting drivers willingness to pay for biofuels the case of italy biofuels represent a promising alternative to substitute fossil fuels and given the relevance of environmental impacts of the transport sector policy initiatives worldwide aim at supporting the shift towards such cleaner energy source acknowledging the crucial role that biofuels will play in years to come in the energetic paradigm the study aims at investigating key determinants of drivers willingness to pay for biofuels focusing on a sample of 260 individuals from northern italy n 260 in line with recent research on consumer behavior socio demographics are not good predictors of drivers willingness to pay surprisingly on the other hand knowledge of the topic is negatively correlated to willingness to pay so that the more people know about biofuels the less they are willing to pay a premium price moreover certification is not an effective tool to convince drivers of the eco friendliness of biofuels hence spurring willingness to pay possible explanations of the research findings as well as policy implications are discussed in detail along with suggestions for future research on the topic

public s willingness to pay a premium for bioethanol in korea a contingent valuation study abstract bioethanol be a renewable energy is well known to mitigate the greenhouse gas emissions compared with conventional gasoline thus the korean government is considering the introduction of a be mandate in which the legal blend is 5 be and 95 gasoline e5 until 2020 in order to expand be use we should examine the public acceptability of the introduction which incurs a rise in the fuel price this study attempts to assess the public s willingness to pay wtp a premium for introducing the e5 program in korea to this end a contingent valuation cv survey of 1000 randomly selected consumers was conducted in 2014 across the nation we used a one and one half bound dichotomous choice question in the cv survey and applied the spike model to handle the wtp data with zeros the mean wtp a premium for the e5 per liter is estimated to be krw 290 usd 0 27 which is statistically meaningful at the 1 level this value amounts to 15 6 of the gasoline retail price in 2014 krw 1856 or usd 1 70 and can be interpreted as the external benefit of be we can conclude that gasoline consumers in korea are ready to pay a significant premium for the e5

gender differences in training capital and wages this paper constructs an equilibrium job matching model where workers differ in their attachment to the labor force the model predicts that workers with weaker attachment to the labor market will receive lower starting wages and lower post training wages and will be placed in jobs that offer less training and use less capital the implications of the model for gender differences in pay and job assignment are tested with the eopp data set ourfindings suggest that while training intensity during the first three months of employment is similar in positions filled by males and females females are employed in positions that have a shorter duration of on the job training and that use less capital these differences in on the job training and capital in positions filled by men and women as well as a lower market value for women s prior labor market experience account for a substantial part of the gap in wages between males and females

understanding the family gap in pay for women with children as the gender gap in pay between women and men has been narrowing the family gap in pay between mothers and nonmothers has been widening one reason may be the institutional structure in the united states which has emphasized equal pay and opportunity policies but not family policies in contrast to other countries that have implemented both the authors now have evidence on the links between one such family policy and women s pay recent research suggests that maternity leave coverage by raising women s retention after childbirth also raises women s levels of work experience job tenure and pay

distinguished fellow mincering labor economics jacob mincer has helped set the research agenda and professional style in labor economics for over 30 years his research helped uncover the empirical content of human capital theory where he used those ideas to study the determinants of earnings and the sources and nature of earnings inequality he was also a pioneer in studying labor force participation decisions of married women for the past decade jacob has set his characteristic stamp on the empirical study of job mobility the following brief survey is meant to convey some of the flavor of jacob mincer s work and why it has been so influential in labor economics

agricultural graduate earnings the impacts of college career and gender survey data were used to identify determinants of starting and current salaries of agricultural graduates from kansas state university from 1976 97 salaries were significantly influenced by major field advanced degrees job location gender and family variables motivation for accepting a job and job mobility salary structures were estimated separately for male and female alumni women earned less than men after controlling for observed differences between the two groups decomposition of the salary differential revealed that gender salary differences were primarily due to differences between sexes in starting salaries field of study job experience and higher returns to married men careers of agricultural alumni have changed rapidly over the past several decades as the food economy has entered the information age goodman employers of agricultural graduates have increased their emphasis on computer people and teamwork related skills litzenberg and schneider andelt barrett and bosshamer given the major changes in the career expectations and experiences of agricultural alumni up to date information on salaries and career experiences is a vital ingredient for sound forward looking college and career decisions the purpose of this study is to identify and quantify the determinants of both starting and current august 1997 salaries of agricultural alumni with the use of a large survey sample of twenty two graduating classes 1976 to 1997 from the college of agriculture at kansas state university ksu this recent and extensive sample provides new insight on how starting salaries have changed over time and how sal

willingness to pay for e85 from corn switchgrass and wood residues abstract willingness to pay wtp for e85 automotive fuel blend of 85 ethanol and 15 gasoline was estimated from a contingent choice exercise contained in a national survey of consumers the choice exercise included e85 blends from three different feedstock sources corn grain switchgrass and wood wastes and an e10 blend 10 ethanol and 90 gasoline with corn grain as the ethanol feedstock results from the study indicate willingness to pay a premium for e85 from switchgrass compared with e10 from corn concerns about land use for food versus fuel had a negative impact on wtp for e85 from corn grain while greater concerns about fuel security relative to the environment had a positive impact

conjoint effect of environmental labeling disclosure of forest of origin and price on consumer preferences for wood products in the us and uk abstract a study that conjointly analyzed the effects of environmental labeling disclosure of forest of origin and price on consumer preferences for wood products was conducted in the us and the uk a choice based elicitation tool was used to mimic a real life situation where a single product was selected over a set of options data collected were analyzed using a conditional logit model certification issued by a government agency or an environmental non government organization both had a favorable effect on consumer preference over a non certified option the most relevant implication of our findings was the negative effect that disclosing information about a product coming from tropical forests had on consumer preferences even compared to a product of unknown origin a decline in product preference was observed along higher price premiums as expected the degree of sensitivity to price changes was affected by demographic characteristics model coefficients were used to estimate market shares of tropical wood products under different scenarios in both countries scenarios explored the effect of environmental certification and price premiums on product market shares

discrimination in an equilibrium search model i construct an equilibrium search model where some employers have a distaste for hiring minority workers and show that this bias results in economic discrimination against minority workers although only unprejudiced firms hire minority workers minority workers receive lower wages than workers not facing discrimination whenever any employers in the market have a distaste for minority workers one implication of the model is that gender or racial wage differentials understate the utility loss from discrimination in addition the wages of minority workers increase when their proportion increases in the labor market

on the effects of schooling vintage on experience earnings profiles theory and evidence abstract in this paper a distinction is made between human capital depreciation related to a worker s aging and depreciation due to the obsolescence of the worker s education schooling specific obsolescence of human capital is incorporated in the mincerian model of earnings and it is shown how this obsolescence affects the worker s earnings profile using the israeli 1983 census we show that for high tech oriented industries for which obsolescence is relatively important obsolescence effects are more significant than for low tech oriented industries and consequently the experience earnings peak falls faster with increasing education in the former

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

public support for reducing us reliance on fossil fuels investigating household willingness to pay for energy research and development abstract in order to reduce future dependence on foreign oil and emissions of co2 how much would us households be willing to pay annually to support increased energy research and development r d activities designed to replace fossil fuels does it matter whether the r d includes nuclear energy options we explore these questions using data from a unique set of national telephone and internet surveys using a national advisory referendum format the contingent valuation method is applied to estimate annual household willingness to pay wtp for us household support of a national energy research and development fund erdf for investments in energy sources not reliant on fossil fuels while accounting for the level of un certainty in voting responses the wtp modeling includes a comparison of both classic maximum likelihood estimation mle and bayesian analysis evidence indicates that mle and bayesian analysis achieve similar statistical inference while the bayesian analysis provides a narrower confidence interval around estimated wtp

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

a meta analysis of the international gender wage gap abstract since the early 1970s a number of authors have calculated gender wage differentials between women and men of equal productivity this meta study provides a new quantitative review of this vast amount of empirical literature on gender wage differentials as it concerns not only differences in methodology data and time periods but also different countries we place particular emphasis on a proper consideration of the quality of the underlying study which is done by a weighting with quality indicators the results show that data restrictions i e the limitation of the analysis to new entrants never marrieds or one narrow occupation only have the biggest impact on the resulting gender wage gap moreover we are able to show what effect a misspecification of the underlying wage equation like the frequent use of potential experience has on the calculated gender wage gap over time raw wage differentials worldwide have fallen substantially however most of this decrease is due to better labor market endowments of females

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

exploring the drivers side of the blend wall u s consumer preferences for ethanol blend fuels abstract analysis of stated preferences from over 2300 u s respondents shows that general attitudes nationwide favor the use of ethanol as a motor fuel but a sizeable segment 20 indicated strong unwillingness to buy ethanol blend fuels results from a discrete choice experiment analyzed using mixed logit regressions show that all else constant price per gallon and miles per gallon dominated preferences for fuel attributes but ethanol content made the average consumer more likely to choose a blend fuel findings provide strong evidence of heterogeneity in preferences driven by attitudes but also affected by age and income at a point of price per mile equivalence for ethanol and gasoline in a market where gasoline e20 and e85 were available with no regulatory supply or technological constraints e85 would dominate market share in this case ethanol would account for 56 of volume of motor fuels consumed our results show a high level of consumer substitutability of gasoline with ethanol and willingness to choose high ethanol blend fuels which could help expand ethanol use beyond the current regulatory and technological limits of the blend wall

unequal pay or unequal employment a cross country analysis of gender gaps we analyze gender wage gaps correcting for sample selection induced by nonemployment we recover wages for the nonemployed using alternative imputation techniques simply requiring assumptions on the position of imputed wages with respect to the median we obtain higher median wage gaps on imputed rather than actual wage distributions for several oecd countries however this difference is small in the united states the united kingdom and most central and northern eu countries and becomes sizable in southern eu countries where gender employment gaps are high selection correction explains nearly half of the observed negative correlation between wage and employment gaps

monetary returns to bachelors and masters degrees in agricultural economics characteristics of agricultural economics alumni from the university of georgia were discussed and a general linear model was developed to explain differences in bachelors and masters alumni salaries graduate education work experience resource mobility gender family background and high school size were found to influence alumni salaries returns to a masters degree were computed along with capital recovery periods assistantship levels cost of borrowed and human capital and nonmonetary benefits were relevant in decisions to attend graduate school some costs and benefits of graduate education were found to be subjective to vary across individuals and to be influenced by prevailing economic conditions

time allocation decisions associated with job market preparation undergraduate perceptions versus market realities a survey of agribusiness firms identifies characteristics associated with above average starting salary offers in the allied fields of agribusiness agricultural economics business and economics a complementary survey is made of students at texas a m university and university of georgia results show that firms value work experience and leadership experience more than students do whereas students value raising grade point average and interview preparation more than do firms students seeking a firm s maximum starting salary offer will need to enhance academic performance with substantial work experience and leadership experience copyright 2002 oxford university press

the intertemporal substitution model of labour market fluctuations an empirical analysis the paper uses two approaches to study whether aggregate fluctuations in employment and unemployment may be explained within a market clearing framework as intertemporal substitution in labour supply first log linear equations for labour supply and unemployment are estimated using a forecasting model to measure wage and price expectations second a utility function is used to derive and estimate an equation for labour supply as a function of the current real wage and consumption the influence of expected future real wages and interest rates is captured by the consumption variable the empirical results do not support the intertemporal substitution model

is gender pay discrimination on the wane evidence from panel data 1968 1989 previous studies of the gender pay gap in the united states have found a narrowing of that gap in the past two decades but have differed substantially in the reported magnitude of that change this study calculates gender earnings differences using panel study of income dynamics data for 1968 89 a longer time series than has been examined by any similar study it also employs improved statistical techniques notably an adjustment for selection bias and a recently recommended modification of the most commonly used decomposition technique the author finds a significant decline both in the portion of the differential due to observed differences between men s and women s characteristics and in the unexplained component which is often attributed to discrimination the results of one analysis show that over the 1968 89 period the gender pay gap narrowed to as little as 47

bayesian inference for comparative research rv egression analysis in comparative research suffers from two distinct problems of statistical inference first because the data constitute all the available observations from a population conventional inference based on the long run behavior of a repeatable data mechanism is not appropriate second the small and collinear data sets of comparative research yield imprecise estimates of the effects of explanatory variables we describe a bayesian approach to statistical inference that provides a unified solution to these two problems this approach is illustrated in a comparative analysis of unionization a widely used tool in quantitative comparative politics is the linear regression model estimating relationships between institutional and economic variables observed for a set of countries constituting some population of interest a brief survey of recent comparative research finds no shortage of work of this type for instance remmer 1991 identifies economic crisis as a source of electoral volatility in latin american countries in the 1980s robertson 1990 presents evidence that institutions moderating the transaction costs of negotiations between capital and labor reduce industrial conflict and golden 1993 finds that union wage moderation in industrialized democracies results from coordinated collective bargaining although the methodological advantages are well documented jackman 1985 we identify two distinct problems of statistical inference endemic to this type of quantitative comparative research first because the data constitute all the available observations from a population conventional inference based on the long run behavior of some repeatable data mechanism is not appropriate second because data sets tend to be small and collinear the effects of explanatory variables are estimated imprecisely in most applications the first problem is generally ignored and the second is solved by imposing restrictions on the regression model to obtain sensible results the bayesian model of statistical inference provides a unified solution to these two distinct problems of quantitative comparative research two features of bayesian inference are important in this context first probability is conceived subjectively as characterizing a researcher s uncertainty about the parameters of a statistical model this subjective probability concept seems particularly useful in comparative settings where the data are typically convenience samples not generated by a known probability mechanism such as random sampling second bayesian inference allows the inclusion of other information in addition to the quantitative sample information again this seems useful in the comparative context where rich historical material is commonly available sparking ideas for researchers but formally discarded in the final analysis in the bayesian approach this historical material can be formally incorporated into the analysis we begin by detailing why the nonstochastic and weak data typical of comparative research are problematic for conventional linear regression analysis we next introduce some ideas about bayesian inference and describe bayesian regression analysis these ideas are applied to a comparative analysis of unionization the subject of a recent exchange in the american political science review between michael wallerstein and john stephens stephens and wallerstein 1991 wallerstein 1989 the bayesian regressions we present are supplemented with a sensitivity analysis that investigates how our conclusions depend upon the sample data and our prior beliefs although we survey some ideas in bayesian statistics a full introduction to the bayesian approach to statistical inference is beyond our scope here good book length treatments are pollard 1986 lee 1989 and at a slightly higher level press 1989 our intention here is to spotlight problematic but ignored issues of statistical inference in a common area of application the bayesian alternative that we present represents just one way forward to address these inferential problems

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

reexamining the added worker effect i introduction the added worker effect refers to a wife entering the labor force when her employed husband becomes unemployed this labor supply response is a transitory method of intertemporally smoothing family income and consumption and is of interest to labor economists and to macroeconomists concerned with the labor force participation of married women over the business cycle the added worker effect is familiar in terms of the income and substitution framework of the labor supply model when family earnings fall as a result of the husband s unemployment the income effect influences the wife to increase her labor supply similarly the wife s reservation wage for market work falls when the husband s increased nonemployment time provides a substitute for her home production and she is more likely to join the labor force as an added worker the wife s reservation wage is also influenced by the degree of complementarity or substitutability of leisure time between the husband and the wife observing the net result of these three factors the existence and the magnitude of the added worker effect is an empirical question this paper expands on the conventional income and substitution explanations in order to emphasize how employment uncertainty and liquidity constraints influence the added worker effect in the context of a dynamic model of family labor supply an unanticipated unemployment spell by the husband and the resulting shift in the budget constraint will alter expectations of future unemployment probabilities which will cause the wife to revise her life cycle profile of current and future labor supplies the explanation of liquidity constraints as a cause of the added worker effect is discussed in much of the literature see mincer 1962 1966 killingsworth and heckman 1986 and rosen 1992 as stressed by lundberg 1985 anticipated unemployment should not produce an added worker effect unless credit constraints limit access to borrowing against future income explaining how the timing of labor supply could be affected by variations in family income mincer 1962 cites capital market imperfections as a reason why a transitory increase in labor force participation of the wife may well be an alternative to dissaving asset decumulation or increasing debt while the added worker effect is easily explained by theoretical models of family labor supply such as those sketched above or that presented by ashenfelter 1980 empirical work has failed to reach a consensus regarding its magnitude or even whether it exists 1 although heckman and macurdy 1982 and lundberg 1985 have shown that the added worker effect is small yet significant pencavel 1982 does not find an added worker effect once he controls for individual specific fixed effects and maloney 1987 1991 does not find any evidence of an added worker effect it is interesting to note the wide variety of data used in this literature heckman and macurdy use annual panel data lundberg uses monthly panel data constructed from quarterly interviews pencavel uses annual panel data constructed from quarterly interviews and maloney uses annual cross sectional data this paper is motivated both by the conflicting empirical work regarding whether or not the added worker effect exists and by the view that the added worker effect should be analyzed using panel data with a short recall period cross sectional microdata cannot adequately capture the intertemporal decisions of wives joining the labor force when their husbands become unemployed annual measures of labor supply are less than ideal for examining the added worker effect since short spells of unemployment by the husband in the preceding year are often forgotten see horvath 1982 and akerlof and yellen 1985 my purpose is to document the magnitude of the added worker effect using monthly longitudinal microdata from the current population survey cps

show me the money the value of college graduate attributes as expressed by employers and perceived by students employers of agricultural undergraduates are presented with hypothetical job candidates with different attributes and salaries and are asked which candidate if any they would hire the employer choices are then used to estimate the additional salary they will pay for undergraduates with certain attributes students are administered similar surveys where they indicate which hypothetical candidate they think will be hired which can be used to estimate students perceived salary increase associated with each attribute employers stated values are then compared to students perceived values to identify any misperceptions regarding the monetary return of select attributes

the market for agricultural economists discussion the three papers on the market for agricultural economists present a rather wide array of thinking on the subject it is good and necessary for the profession to be concerned about the demand for and supply of agricultural economists at both the ph d and master s levels our graduate programs must be market driven to be successful as such these programs will recognize the changing nature of the market and respond with a supply of young professionals who can find a productive place in the market the demand for agricultural economists has become very broad and diverse over the years the various segments of that market can be broken down as follows a academic this is the largest segment of demand and includes our traditional efforts

does household labour impact market wages this study investigates the hypothesis that women s greater home responsibilities contribute directly to their lower wages because household labour time reduces their market effort ols regressions show a significant negative effect of household labour hours on market wages for white married women but not for other groups of women single black or men regressions correcting for endogeneity of household hours in the wage equation or heterogeneity among women indicate there is no significant effect of household labour hours on wages for any demographic group these results suggest that the evidence in support of the hypothesis is not compelling

an economic analysis of female work participation education and fertility theory and empirical evidence for the federal republic of germany this paper summarizes some facts on female work in germany and presents some recent econometric explorations the econometric method adopted is the tobit procedure which allows one to estimate labor supply functions including both hours worked and participation the general finding is that it is necessary to distinguish among several groups of females while work participation of young single women decreased substantially married women have a higher participation rate today than in earlier years in addition income elasticities of labor supply and their decomposition are estimated but several caveats regarding these estimates are in order

choice modelling approaches a superior alternative for environmental valuation in this paper we examine some popular choice modelling approaches to environmental valuation which can be considered as alternatives to more familiar valuation techniques based on stated preferences such as the contingent valuation method a number of choice modelling methods are consistent with consumer theory and its focus on an attribute based theory of value permits a superior representation of many environmental management contexts however choice modelling surveys can place a severe cognitive burden upon respondents and induce satisficing rather than maximising behavioural patterns in this framework we seek to identify the best available choice modelling alternative and investigate its potential to solve some of the major biases associated with standard contingent valuation we then discuss its use in the light of policy appraisal needs within the eu an application to the demand for rock climbing in scotland is provided as an illustration

empirical age earnings profiles the human capital earnings function in which earnings are expressed as a quadratic in potential experience is probably the most widely accepted empirical specification in economics in spite of its widespread acceptance the human capital earnings function provides a very poor approximation of the true empirical relationship between earnings and experience the standard formulation understates early career earnings growth by about 30 50 and overstates midcareer growth by 20 50 however simple alternative specifications that fit the data are available

why are more women working in britain in britain female labor force participation rose steadily from the second world war to 1977 to explain this we estimate a pooled time series cross section supply function for single year age groups of women the life cycle pattern is explained quite well by the presence of children at a second stage we try to explain the rising level of the cohort intercepts estimated at the first stage real wage growth may be an explanatory factor as cross section evidence suggests it should be finally we point to the 15 rise in the relative pay of women in the mid 1970s caused by the equal pay act this did not cause the expected decline in the relative demand for female employees

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

evidence on discrimination in employment codes of color codes of gender there is substantial racial and gender disparity in the american economy as we will demonstrate discriminatory treatment within the labor market is a major cause of this inequality the evidence is ubiquitous careful research studies that estimate wage and employment regressions help wanted advertisements audit and correspondence studies and discrimination suits that are often reported by the news media yet there appear to have been periods of substantial reductions in economic disparity and discrimination for example donohue and heckman provide evidence that racial discrimination declined during 1965 1975 1 gottschalk has produced statistical estimates that indicate that discrimination against black males dropped most sharply between 1965 and 1975 and that discrimination against women declined during the interval 1973 1994 2 but some unanswered questions remain why did the movement toward racial equality stagnate and eventually decline after the mid 1970s what factors are most responsible for the remaining gender inequality what is the role of the competitive process in the elimination or reproduction of discrimination in employment

trends and characteristics of ph d degrees in agricultural economics in the united states the purpose of this paper is to discuss the trends that have occurred in the number of and some of the characteristics of recipients of ph d degrees in agricultural economics in the united states in recent years it includes an updating of work i initiated five years ago schrimper 1981a b c 1982 the latest information used in the previous work included degrees awarded through 1980 this paper is based on an additional three years of information this allows a detailed examination of changes over the last nine years as well as comparison with the earlier tabulations also information for three more institutions arizona rhode island and yale has been included as previously the major source of information is listings of ph d recipients for the previous year in the may issues of this journal the cooperation of several individuals contacted to obtain missing information and answer questions about data for various years is gratefully acknowledged without their help the information would have been incomplete and comparisons over time would have been meaningless the latest data available for developing this paper was the list of 1983 graduates even this information is somewhat dated however since it reflects admission financial assistance and enrollment decisions made at least five years ago the first part of this paper summarizes changes that have occurred in total output of ph d degrees in agricultural economics as well as distributional adjustments among regions individual institutions and between domestic and foreign students the second part focuses on some characteristics of domestic students who received ph d degrees in agricultural economics it contains information about where individuals received their undergraduate training and geographical and institutional migration for graduate training similar types of information about foreign ph d students is included in the third section of the paper finally a short summary and conclusions section is provided

aggregate supply and demand factors in oecd unemployment an update unemployment in the oecd countries has continued to rise to unprecedented levels the eec countries which on average ended the turbulent 1970s with an unemployment rate of close to 7 per cent are now in the mid 1980s approaching an 11 per cent level the united states is virtually the only country for which the changes in unemployment during the 1970s have not been systematically upward and for which the 1984 rate was more or less back to where it had been both ten years and five years earlier see figure 1 the reasons for the sustained increase in unemployment during the 1970s as well as the possible reasons for differences in patterns across industrial countries have been studied but question marks undoubtedly remain our own emphasis in an earlier study has been on the combination of the great supply shocks of the previous decade and the contractionary macro policy response of most oecd countries to these shocks as well as on the more recent policy coordination problem between the united states and europe with a few more years that have elapsed and quite a few percentage points of additional unemployment there is obviously room for both an update and a reappraisal starting from a fairly conventional aggregate supply as and aggregate demand ad macro framework an increase in unemployment may come

monetized value of the environmental health and resource externalities of soy biodiesel abstract this study monetizes the life cycle environmental damage human health risk and resource depletion externalities associated with the production and use of biodiesel fuels from soybean feedstock applying a framework that couples life cycle damage measurements with social preferences elicited from a conjoint choice experiment allows for comparison of petrodiesel and biodiesel s external damages the results of the study reveal that production and consumption of soybean based biodiesels produce improvements in environmental health and resource impacts of 0 27 per gallon relative to petrodiesel for a 20 blend and 3 14 per gallon for a 100 blend

the rate of return to investments in on the job training in this paper we use the overtaking method to calculate marginal rates of return to on the job training as we have no prior information on who invests in ojt and who does not we use a switching regression model with unknown regimes to obtain parameter estimates of the wage profiles the estimation results show that lower intercepts are associated with steeper wage profiles this confirms the prediction that those who invest in ojt have lower initial wages but higher wage growth we further find that the marginal rate of return to ojt is high and increases with education

a bayesian perspective on inference from macroeconomic data bayesian methods are logical admissible linguistically natural helpeful conceptually simple and honest but they are also preposterous and very labor intensive generalized bayesian methods allow data to be confusing and inconclusive a bayesian viewpoint allows one to get a handle on the conundrums of exploratory data analysis which are prevalent when the theory is vague and experiments are expensive these ideas are illustrated with a bayesian analysis of the determinants of the u s unemployment rate using four different priors as inputs

valuing climate protection through willingness to pay for biomass ethanol abstract this study uses a multi part split sample contingent valuation method cvm and fair share fs survey to better understand the public s valuation of mitigating global climate change through its willingness to pay for biomass or cellulosic ethanol in addition to a basic cvm question a related scenario was developed that asked half of the survey respondents to state their fair share cost to lessen a potential food shortage in the next decade also through the expanded use of cellulosic ethanol three alternative biomass feedstocks were assessed farming residues forestry residues and paper mill wastes and municipal solid wastes overall a slightly larger proportion of respondents were wtp extra for cellulosic ethanol in the basic cvm scenario than in the fs scenario though no significant differences were found in the wtp for the different feedstocks bid curve lognormal regression results for the two models were similar supporting the idea that asking a fs rather than a conventional wtp question may be justifiable in some circumstances such as in cases of a national emergency

recreation demand models with taste differences over people we estimate random parameter logit models of anglers choice of fishing site the models generalize logit by allowing coefficients to vary randomly over anglers rather than being fixed the models do not exhibit the restrictive independence from irrelevant alternatives property of logit and can represent any substitution pattern estimation explicitly accounts for the fact that the variation in coefficients over anglers induces correlation in unobserved utility over trips by the same angler willingness to pay for improved fish stock and the value to anglers of specific sites are calculated from the models and compared with the estimates obtained from a standard logit model

women in the labor market and in the family t here are two themes in this paper the first an exercise in revisionist history argues that the conventional wisdom of an absence of any substantial labor market progress for women is mistaken instead throughout this century women s wages have been steadily rising relative to those of men a progress likely to accelerate in the next few decades our second theme contends that this labor market progress is not enough alongside their labor market advances the relative economic plight of many women is worsening the downside news is the increasing feminization of poverty a reflection of the growing instability of the american family

temporal analysis of income earned by former agriculture students earnings profiles of students formerly enrolled in a college of agriculture were analyzed in the context of labor market information analysis of covariance was used to estimate models explaining how salary determinants changed during the alumni s careers gender education year of job market entry profit sharing and personal emphasis on earnings were found to be significant determinants of starting incomes starting incomes were found to be a prime determinant of later year salaries along with experience on the immediate job profit sharing oral and technical skills marital status and place of residence labor market information was found to vary in quality across participants and have a limited shelf life

does the jack of all trades hold the winning hand comparing the role of specialized versus general skills in the returns to an agricultural degree this paper examines the roles of specialized versus general skills in explaining variation in the returns to an agriculture degree among graduates working both inside and outside the agricultural industry the focus on returns by sector of employment is motivated by our finding that most agricultural graduates are employed in non agricultural jobs in that study a sample of alumni graduating from a large midwestern public university between 1982 and 2006 shows that alumni with majors more specialized in agriculture earned a premium from working in the agriculture industry but this advantage has diminished over time agricultural graduates with more general training earn more outside than inside agriculture higher ability graduates in more industry focused curricula tend to sort into the agricultural industry while higher ability graduates in broader curricula tend to choose jobs outside of agriculture all graduates are more likely to accept agricultural employment when the farm economy is strong but agricultural graduates who enter agricultural jobs when the farm economy is weak suffer lifetime earnings reductions these findings suggest that greater levels of specialization may limit a graduate s ability to adjust to changing economic circumstances agriculture degree programs could benefit from curriculum innovations that focus on developing more generalized skills

the neighbor effect simulating dynamics in consumer preferences for new vehicle technologies abstract understanding consumer behaviour is essential in designing policies that efficiently increase the uptake of clean technologies over the long run expert opinion or qualitative market analyses have tended to be the sources of this information however greater scrutiny on governments increasingly demands the use of reliable and credible evidence to support policy decisions while discrete choice research and modeling techniques have been applied to estimate consumer preferences for technologies these methods often assume static preferences this study builds on the application of discrete choice research and modeling to capture dynamics in consumer preferences we estimate canadians preferences for new vehicle technologies under different market assumptions using responses from two national surveys focused on hybrid gas electric vehicles and hydrogen fuel cell vehicles the results support the relevance of a range of vehicle attributes beyond the purchase price in shaping consumer preferences towards clean vehicle technologies they also corroborate our hypothesis that the degree of market penetration of clean vehicle technologies is an influence on people s preferences the neighbor effect finally our results provide behavioural parameters for the energy economy model cims which we use here to show the importance of including consumer preference dynamics when setting policies to encourage the uptake of clean technologies

work power and earnings of women and men numerous studies have established that part of the very substantial male female earnings gap is explained by differences in the amount of human capital workers have accumulated see for example jacob mincer and haim ofek 1983 institutional factors have also been found to play a role in determining wages david gordon et al 1982 occupation further helped to explain the remaining gap but several researchers have shown that introducing dimensions of work authority by taking into account the individual s position in the work hierarchy explains more of the variation in earnings than does occupation martha hill 1980 last two recent studies ferber and spaeth 1984 spaeth 1985 also included control over monetary resources this variable added substantially to the explanatory power of earnings regressions even after human capital variables institutional factors and several other measures of work authority had been entered like the other studies ferber and spaeth also found that reward structures for men and women are quite different suggesting the possible existence of discrimination the question whether women may also be at a disadvantage in achieving control over monetary resources was not investigated when hill examined the process of achievement of work authority she found substantial differences between male and female workers in this paper we examine whether the same is true for attaining financial control i data and analysis

can volunteer work help explain the male female earnings gap using the 1987 survey of volunteer activity in canada we examine whether differential returns to volunteer work in the paid labour market can explain part of the male female earnings gap male volunteers earn on average about 11 higher incomes than their non volunteering counterparts as a result of their volunteer experience whereas comparable female volunteers and non volunteers earn similar incomes this differential return across the sexes may be partially explained by the type of volunteer activity undertaken our results indicate that as much as one third of the male female earnings gap may be attributable to the fact that the labour market rewards male and female volunteers differently