wage mobility in the united states this paper examines the mobility of individuals through the wage and earnings distributions using 1979 1991 data from the national longitudinal survey of youth lifetime wages will be more equally distributed than wages from any single year if individuals change position in the wage distribution over time the results suggest that mobility is predominantly within group mobility reducing wage inequality by 12 26 over a four year horizon a detailed examination of within group mobility using year to year estimates of transition probabilities among quintiles of the distribution reveals similar general patterns across all skill groups mobility declined significantly over the years especially at the lower end of the wage and earnings distributions

accuracy of response in labor market surveys evidence and implications this paper examines the extent of response errors in labor market survey data and explores the implications of such errors for economic analysis explicitly examined are responses to questions on industry occupation union status hours worked and wages analyses are based on two sources 1 a special supplement to the january 1977 current population survey that obtained data from workers and their employers and 2 an exact match of workers and their employers interviewed in the employment opportunity pilot project survey the dual nature of these surveys provides a basis for analyzing the effect of response error on a variety of economic analyses including the trade off between wages and risk the wage impact of unionism and the sensitivity of wage determination models to alternative responses to earnings questions

estimating income poverty in the presence of measurement error and missing data problems reliable measures of poverty are an essential statistical tool for public policies aimed at reducing poverty in this article we consider the reliability of income poverty measures based on survey data which are typically plagued by missing data and measurement error neglecting these problems can bias the estimated poverty rates we show how to derive upper and lower bounds for the population poverty rate using the sample evidence an upper bound on the probability of misclassifying people into poor and nonpoor and instrumental or monotone instrumental variable assumptions by using the european community household panel we compute bounds for the poverty rate in 10 european countries and study the sensitivity of poverty comparisons across countries to missing data and measurement error problems supplemental materials for this article may be downloaded from the jbes website

labor supply elasticities overcoming nonclassical measurement error using more accurate hours data we measure the impact of measurement error in labor supply elasticities estimated over recalled usual work hours as is ubiquitous in the literature we employ data on hours of work in diaries collected by the american time use survey 2003 2015 along with the same respondents recalled usual work hours estimates using the latter yield elasticities that are positively biased we argue that this bias arises from the salient effects of differences in wage rates on recalled hours abstract from author

measurement error in human capital and the black white wage gap proxy variables are frequently used in economics to control for unavailable variables in a linear regression setting for example afqt scores have been used to control for human capital accumulati

racial disparities in job finding and offered wages abstractthe extent to which discrimination can explain racial wage gaps is one of the most divisive issues in the social sciences using a newly available data set this paper develops a simple empirical test that under plausible but not innocuous conditions provides a lower bound on the extent of discrimination in the labor market taken at face value our estimates imply that differential treatment accounts for at least one third of the black white wage gap we argue that the patterns in our data are most naturally rationalized through a search matching model in which employers statistically discriminate on the basis of race when hiring unemployed workers but learn about their marginal product over time

measurement error and misclassification a comparison of survey and administrative data we provide both a theoretical and empirical analysis of the relation between administrative and survey data by distinguishing between different sources of deviations between survey and administrative data we are able to reproduce several stylized facts we illustrate the implications of different error sources for estimation in simple econometric models and find potentially very substantial biases this article shows the sensitivity of some findings in the literature for the assumption that administrative data represent the truth in particular the common finding of substantial mean reversion in survey data largely goes away once we allow for a richer error structure

wage aspirations and unemployment persistence abstract we use panel data to examine the empirical determinants of the reservation wage in particular the influence of previous wages and consider what this implies for the evolution of the natural rate of unemployment we find that previous wages have a significant but relatively small effect on reservation wages an elasticity between 0 15 and 0 47 we also find considerable differences across genders with previous wages being more important for men and market wages being more important for women overall our results suggest that the reservation wage will adjust quite quickly to shocks

price elasticity of groundwater demand attenuation and amplification bias due to incomplete information measurement errors in both human and natural components of agricultural and environmental systems can be as much a source of estimation bias as omitted variables selfselection simultaneity and reverse causality nonetheless partly because of difficulties in obtaining data there is less literature on measurement error problems than on other endogeneity problems this article examines estimation bias in the price elasticity of groundwater consumption for irrigated agriculture on the intensive margin the price at issue is for the energy used in pumping and pressurizing water for delivery lacking the precise unit irrigation cost previous studies imputed irrigation costs we first consider groundwater irrigation costs and identify factors that can cause measurement errors in the process of imputation under incomplete information about the determinants of irrigation costs we follow this by systematically analyzing the potential bias caused by measurement errors using econometric theory along with monte carlo simulations where appropriate we then quantify actual measurement errors making use of a unique dataset in which energy and groundwater consumption data are matched for individual observations finally we compare regression results using exact irrigation costs as opposed to imputed ones we find evidence of substantial measurement errors resulting in attenuation and amplification bias in the price elasticity of irrigation water consumption on the intensive margin our results indicate that measurement errors in irrigation costs can lead to misleading policy implications related to water and energy pricing as a tool to conserve water we also show that estimating the energy price elasticity of groundwater use is not as straightforward as previously thought

primary schooling cognitive skills and wages in south africa using a fairly rich data set from south africa the paper finds that despite the sobriquet gutter education the african schooling systems help to create cognitive skills and these skills are a determinant of wage levels various robust estimators are used but the influential outlier problem does not turn out to be serious computational skills appear to be more important than comprehension skills in influencing wages the african primary schooling system was an extremely poor generator of computational skill the seven year course raising the computational test score by 13 if that a policy implication is that productivity could be raised by certain near costless reallocations of resources in favour of mathematical learning

the labor supply response to mismeasured but predictable wage changes most panel data studies of intertemporal labor supply assume classical measurement error recent validation studies refute this assumption in this study i address nonclassical measurement error explicitly i use data on males from the panel study of income dynamics validation study to purge measurement error from the panel study of income dynamics i find a large amount of predictable wage variation in the data even after allowing for measurement error however there is almost no labor supply response to these predictable wage changes therefore failure to control for nonclassical measurement error cannot explain the low estimated labor supply elasticities in other papers

elections coalitions and legislative outcomes predictions of electoral behavior in a multiparty setting should be a function of the voters beliefs about how parties will perform following an election similarly party behavior in a legislature should be a function of electoral promises and rewards we develop a multistage game theoretic model of three party competition under proportional representation the final policy outcome of the game is generated by a noncooperative bargaining game between the parties in the elected legislature this game is essentially defined by the vote shares each party receives in the general election and the parties electoral policy positions at the electoral stage parties and voters are strategic in that they take account of the legislative implications of any electoral outcome we solve for equilibrium electoral positions by the parties and final policy outcomes

determinants of income mobility and household poverty dynamics in south africa this article analyses household income mobility among africans in south africa s most populous province kwazulu natal between 1993 and 1998 compared to industrialised and most developing countries mobility has been quite high as might have been expected after the transition in south africa this finding is robust when measurement error is controlled for when disaggregating the sources of mobility it is found that demographic changes and employment changes account for most of the mobility observed which is related to rapidly shifting household boundaries and a very volatile labour market in an environment of high unemployment using a multivariate analysis it can be seen that transitory incomes play a large role four types of poverty traps are found associated with large initial household size poor initial education poor initial asset endowment and poor initial employment access that dominate the otherwise observed regression towards the mean

the effect of nonfarm income on investment in bulgarian family farming this article documents a relationship between nonfarm income primarily earnings and pensions and agricultural investment in bulgaria specifically expenditures on working capital variable inputs such as feed seed and herbicides and investment in livestock among those with positive spending on farm inputs the estimated elasticity of these expenditures with respect to nonfarm income is 0 14 nonfarm income also has an effect on the number of households that purchase farm animals with an estimated elasticity of 0 35 the use of nonfarm income for farm investment is consistent with the presence of credit constraints as is the fact that less than one percent of farmers report outstanding debts for agricultural purposes yet many farm households take out large unsecured loans for other purposes primarily to cover consumption expenditures implying that credit is available but that farmers prefer not to use borrowed funds to finance agricultural investment this would suggest that increases in the availability of agricultural credit may have little effect on farm outcomes whereas increases in nondebt financed sources of liquidity such as subsidies or transfers may better stimulate investment

income volatility and household consumption the impact of food assistance programs the impact offood assistance programs food stamps in a period of rising income inequality in the united states is analyzed using 1978 92 psid data we assess to what extent food assistance can be viewed as an effective insurance to permanent shocks to income the results show that the program has a substantial consumption smoothing effect in the lowincome population the response of food consumption to a permanent income shock is a third lower after accounting for the monetary value of food stamps

estimation of poverty transition matrices with noisy data summary this paper investigates measurement error biases in estimated poverty transition matrices we compare transition matrices based on survey expenditure data to transition matrices based on measurement error free simulated expenditure the simulation model uses estimates that correct for measurement error in expenditure we find that time varying measurement error in expenditure data magnifies economic mobility roughly 45 of households initially in poverty at time t 1 are found to be out of poverty at time t using data from the korean labor and income panel study when measurement error is removed this drops to between 26 and 31 of households initially in poverty copyright 2016 john wiley sons ltd

the governance of sustainable socio technical transitions a quasi evolutionary model of socio technical transitions is described in which regimes face selection pressures continuously differentiated transition contexts determine the form and direction of regime change in response to these pressures the articulation of pressures and the degree to which responses are coordinated and based on resources available within the regime define the transition context four alternative contexts are described endogenous renewal re orientation of trajectories emergent transformation and purposive transitions agency and power in the governance of regime transformation are analysed power to affect change depends on regime membership the distribution of resources for change and expectations

technical change wage inequality and taxes this paper considers the normative implications of technical change for tax policy design a task to talent assignment model of the labor market is embedded into an optimal tax problem technical change modifies equilibrium wage growth across talents and the substitutability of talents across tasks the overall optimal policy response is to reduce marginal income taxes on low to middle incomes while raising those on middle to high incomes the reform favors those in the middle of the income distribution reducing their average taxes while lowering transfers to those at the bottom jel d31 h21 h23 h24 j31 o33

can permanent income theory explain cross sectional consumption patterns the prediction that consumption income ratios should decline as income rises in cross sectional data is a feature of friedman s 1957 permanent income hypothesis and other consumption smoothing models the theory thus provides a link between longitudinal income data and cross sectional expenditure data given measured income variability and a functional relationship between consumption and permanent income we predict cross sectional expenditure patterns and compare those predictions to actual values our approach cannot explain the actual skewness in consumption income ratios under even the strictest consumption smoothing model which implies that income measurement error or other anomalies are affecting the data

data watch the panel study of income dynamics by collecting annual economic and demographic information from a large and representative sample of u s households for over a quarter century the panel study of income dynamics has compiled a remarkably useful set of microdata this article describes the psid and how its unique longitudinal and in some cases intergenerational features have been used for studies of intertemporal models of labor supply wages employment and job tenure consumption poverty dynamics extended family behavior and the intergenerational transmission of economic status

inflation dynamics when inflation is near zero this paper discusses the likely evolution of u s inflation in the near and medium term on the basis of 1 past u s experience with very low levels of inflation 2 the most recent japanese experience with deflation and 3 recent u s micro evidence on downward nominal wage rigidity our findings question the view that stable long run inflation expectations and downward nominal wage rigidity will provide sufficient support to prices such that deflation can be avoided we show that an inflation model fitted on japanese data over the past 20 years which accounts for both short and long run inflation expectations matches the recent u s inflation experience quite well while the model indicates that u s inflation might be subject to a lower bound it does not rule out a prolonged period of mild deflation going forward in addition our micro evidence on wages suggests no obvious downward rigidity in the firm s wage costs downward rigidity in individual wages notwithstanding as a consequence downward nominal wage rigidity may provide little offset to deflationary pressures in the current u s situation despite some circumstantial evidence that this channel might have been at work in the past

consumption inequality and family labor supply we examine the link between wage and consumption inequality using a life cycle model incorporating consumption and family labor supply decisions we derive analytical expressions for the dynamics of consumption hours and earnings of two earners in the presence of correlated wage shocks nonseparability progressive taxation and asset accumulation the model is estimated using panel data for hours earnings assets and consumption we focus on family labor supply as an insurance mechanism and find strong evidence of smoothing of permanent wage shocks once family labor supply assets and taxes are properly accounted for there is little evidence of additional insurance jel d12 d14 d91 j22 j31

does the choice of consumption measure matter an application to the permanent income hypothesis abstract food consumption in the panel study of income dynamics is used as a proxy for total consumption in many applications in economics including tests of the permanent income hypothesis tests of separability between consumption and leisure and tests of intergenerational altruism food however explains only a small fraction of the variation in total consumption i propose a measure of composite consumption based on predicted wealth and compare it both to food consumption and to skinner s 1987 measure of predicted consumption in a test of the permanent income hypothesis using a log linear intertemporal consumption function i find that food does not reject the permanent income hypothesis but both skinner s predicted consumption and the composite measure proposed here to reject the hypothesis

incentives to cultivate favored minorities under alternative electoral systems a simple model is used to compare under different electoral systems the incentives for candidates to create inequalities among otherwise homogeneous voters by making campaign promises that favor small groups rather than appealing equally to all voters in this game model each candidate generates offers for voters independently out of a distribution that is chosen by the candidate subject only to the constraints that offers must be nonnegative and have mean 1 symmetric equilibria with sincere voting are analyzed for two candidate elections and for multicandidate elections under rank scoring rules approval voting and single transferable vote voting rules that can guarantee representation for minorities in multiseat elections generate in this model the most severely unequal campaign promises

errors in self reported earnings the role of previous earnings volatility and individual characteristics abstract i report the measurement error in self reported earnings for a developing country using a novel data set the data set consists of two cross sections of the federated states of micronesia fsm wage and salary sectors additionally a subset of the two cross sections may be linked to create a panel administrative data from fsm social security office are matched to the fsm census data for the wage and salary sectors i find that the error in annual self reported earnings is centered on zero additionally i find strong evidence for mean reversion in the data suggesting non classical measurement error i identify the impact of prior years earnings variability on the current reporting of earnings using administrative data on earnings histories prior earnings volatility strongly affects measurement error in current period however the effect of prior shocks diminish significantly over time suggesting that first differencing and fixed effects techniques will not improve accuracy

the size and scope of government comparative politics with rational politicians we try to demonstrate how economists may engage in research on comparative politics relating the size and composition of government spending to the political system a downsian model of electoral competition and forward looking voting indicates that majoritarian as opposed to proportional elections increase competition between parties by focusing it into some key marginal districts this leads to less public goods less rents for politicians more redistribution and larger government a model of legislative bargaining and backward looking voting indicates that presidential as opposed to parliamentary regimes increase competition between both politicians and voters this leads to less public goods less rents for politicians less redistribution and smaller government we confront these predictions with cross country data from around 1990 controlling for economic and social determinants of government spending we nd strong and robust support for the prediction that the size of government is smaller under presidential regimes and weaker support for the prediction that majoritarian elections are associated with less public goods

evidence on the validity of cross sectional and longitudinal labor market data this article investigates error properties of survey reports of labor market variables we use the panel study of income dynamics psid validation study a two wave panel survey of workers employed by a large firm that shared its detailed payroll records individuals reports of annual earnings are fairly accurate errors are negatively related to true earnings reducing bias due to measurement error when earnings are used as an independent variable biases are moderately larger for changes in earnings earnings per hour are less reliably reported than annual earnings biases in estimating earnings functions are relatively small but those in labor supply functions may be important

the effect of teachers unions on education production evidence from union election certifications in three midwestern states using a unique data set on teachers union election certifications from iowa indiana and minnesota i estimate the effect of teachers unions on school district resources and on student educational attainment my empirical strategy allows for nonparametric leads and lags of union age i find no impact on teacher pay or per student district expenditures but that unions increase teacher employment by 5 i find no class size effect because of enrollment increases in unionized districts and i estimate that unions have no net effect on high school dropout rates these findings highlight the importance of correctly measuring unionization status

cross country differences in intergenerational earnings mobility international studies of the extent to which economic status is passed from one generation to the next are important for at least two reasons first each study of a particular country characterizes an important feature of that country s income inequality second comparisons of intergenerational mobility across countries may yield valuable clues about how income status is transmitted across generations and why the strength of that intergenerational transmission varies across countries the e rst section of this paper explains a benchmark measure of intergenerational mobility commonly used in u s studies the second section summarizes comparable empirical e ndings that have accumulated so far for countries other than the united states the third section sketches a theoretical framework for interpreting cross country differences in intergenerational mobility

what determines individual trade policy preferences abstract this article provides new evidence on the determinants of individual trade policy preferences using individual level survey data for the united states there are two main empirical results first we find that factor type dominates industry of employment in explaining support for trade barriers second we find that home ownership also matters for individuals trade policy preferences independent of factor type home ownership in counties with a manufacturing mix concentrated in comparative disadvantage industries is correlated with support for trade barriers this finding suggests that in addition to current factor incomes driving preferences as in standard trade models preferences also depend on asset values

earnings dynamics and measurement error in matched survey and administrative data this article analyzes earnings dynamics and measurement error using a matched longitudinal sample of individuals survey and administrative earnings in line with previous literature the reported

political parties and the size of government in multiparty legislatures examining cross country and panel data evidence this article tests the effect of an increase in the number of represented political parties and the size of the majority party on the size of government proxied by central government expenditure as a percentage of gdp in multiparty legislatures the author argues that an increase in the number of represented parties leads to higher central government expenditure conversely as the size of the majority party grows from a bare minimum majority to above the supermajority level it has a nonlinear specifically cube effect on central government expenditure panel data on central government expenditure from 110 countries are used to test these arguments the results corroborate the theoretical claims and are robust in regression models where fixed effects were introduced and endogeneity was corrected finally an increase in the number of represented parties leads to higher government spending on subsidies and transfers but to lower spending on public goods

is earnings nonresponse ignorable abstract earnings nonresponse in the current population survey is roughly 30 in the monthly surveys and 20 in the march survey if nonresponse is ignorable unbiased estimates can be achieved by omitting nonrespondents little is known about whether cps nonresponse is ignorable using sample frame measures to identify selection we find clear cut evidence among men but limited evidence among women for negative selection into response wage equation slope coefficients are affected little by selection but because of intercept shifts wages for men and to a lesser extent women are understated as are gender gaps selection is least severe among household heads

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

measurement error and earnings dynamics some estimates from the psid validation study previous empirical work on measurement error in survey earnings data has shown that the variance of the measurement error is roughly constant over time it is negatively correlated with true earnings and it is autocorrelated with previous measurement errors this article proposes a simple model in which the measurement error stems from underreporting of transitory earnings fluctuations and a white noise component the model fits well to data from the panel study of income dynamics validation study the results imply that autocorrelations in the changes of earnings can be estimated relatively accurately despite the presence of measurement error

downward nominal wage rigidity in canada evidence from micro level data we assess the importance of downward nominal wage rigidity dnwr in canada using both firm and worker level microdata in particular we analyze employer level administrative data from the major wage settlements mws and household based survey data from the survey of labour income dynamics slid

on hourly wages and weekly earnings in the current population survey abstract this paper examines hourly wages and weekly earnings in the outgoing rotation group org and the march supplement of current population survey cps from 1998 to 2004 the findings suggest that the org contains less errors than the march cps and that weekly earnings contain less errors than hourly wages the paper further finds that earnings differ systematically in the org and in the march cps by gender and education levels

explaining mass support for agricultural protectionism evidence from a survey experiment during the global recession why are citizens in advanced industrialized countries willing to accept high prices for agricultural products conventional wisdom suggests that agricul tural interests secure government protection because producers are concentrated and better politically organized than diffused consumers due to its focus on pro ducer capacity for collective action however the literature fails to account for the high levels of mass support for agricultural protectionism in advanced industrial ized nations this article presents new evidence from a survey experiment in japan conducted during the recent global recession december 2008 that accounts for this puzzle using randomly assigned visual stimuli the experiment activates respon dents identification with either producer or consumer interests and proceeds to ask attitudinal questions regarding food imports the results suggest that consumer priming has no reductive or additive effects on the respondents support for liberal izing food imports surprisingly producer priming increases respondents opposi tion to food import particularly among those who fear future job insecurity we further disentangle the puzzling finding that consumers think like producers on the issue of food import along two mechanisms sympathy for farmers and projec tion of their own job insecurity the results lend strong support to the projection hypothesis

are wages habit forming evidence from micro data although utility functions play a central role in economics the axiom that utility depends only on the absolute levels of its arguments is rarely tested this paper uses panel data on 2000 british employees who remain with the same employer and who are not promoted from one wave to the next it is shown that one important measure of well being overall job satisfaction is strongly positively correlated with the change in the worker s pay between waves but is unrelated to the current level of pay empirical tests suggest that a reference dependent satisfaction function where individual well being depends on current pay relative to past pay is more consistent with these regression results than are productivity or agency explanations of increasing wage profiles some evidence is presented of greater job satisfaction effects of pay rises for lower paid less well educated and younger workers these results provide some micro evidence consistent with the theory widespread in social science of habituation individuals may become used to any given level of consumption or income as such they tie in with the finding that a country s well being as measured by the average happiness of its citizens is only weakly correlated with its per capita gnp

retrospective reporting of household wealth evidence from the 1983 1989 survey of consumer finances one way to obtain panel like information on household wealth is to ask households about changes in their asset holdings yet the reliability of retrospective data is unclear considering the potential for recall error this article examines the reliability of retrospective reporting using data from the 1983 1989 survey of consumer finances we find substantial inconsistencies between reported net investments in assets with measured changes in holdings inconsistencies are less severe for salient transactions like home sales and more severe for aggregated items like financial assets

measuring the well being of the poor using income and consumption we examine the relative merits of consumption and income as measures of the material well being of the poor consumption offers several advantages over income because consumption is a more direct measure of well being than income and is less subject to underreporting bias measurement problems with income are problematic for analyses of changes in well being of the poor because the biases appear to have changed over time and are correlated with government policies on the other hand income is often easier to report and is available for much larger samples providing greater power to test hypotheses we begin by considering the conceptual and pragmatic reasons why consumption might be better or worse than income then we employ several empirical strategies to examine the quality of income and consumption data first we compare income and consumption reports for those with few resources as well as their assets and liabilities to examine measurement errors and under reporting second we examine other evidence on the internal consistency of reports of low income or consumption third we compare how well micro data in standard datasets weight up to match aggregates for classes of income and consumption that are especially important for low resource families fourth we validate income and consumption measures by comparing them to other measures of hardship or material well being although the evidence tends to favor consumption measures our analyses suggest that both measures should be used to assess the material well being of the poor

poverty traps and nonlinear income dynamics with measurement error and individual heterogeneity theories of poverty traps stand in sharp contrast to the view that anybody can make it through hard work and thrift however empirical detection of poverty traps is complicated by the lack of long panels measurement error and attrition this paper shows how dynamic pseudo panel methods can overcome these difficulties allowing estimation of non linear income dynamics and testing for the presence of poverty traps the paper explicitly allows for individual heterogeneity in income dynamics to account for the possibility that particular groups of individuals may face traps even if the average individual does not these methods are used to examine the evidence for a poverty trap in labor earnings income and expenditure in mexico and are compared to panel data estimates from a short rotating panel the results do find evidence of nonlinearities in household income dynamics and demonstrate large bias in the panel data estimates nevertheless even after allowing for heterogeneity and accounting for measurement error the paper finds no evidence of the existence of a poverty trap for any group in the sample

the sensitivity of an empirical model of married women s hours of work to economic and statistical assumptions this study undertakes a systematic analysis of several theoretic and statistical assumption s used in many empirical models of female labor supply using a singl e data set psid 1975 labor supply data the author is able to replic ate most of the range of estimated income and substitution effects fo und in previous studies in this field he undertakes extensive specif ication tests and finds that most of this range should be rejected du e to statistical and model misspecifications the two most important assumptions appear to be the tobit assumption used to control for sel f selection into the labor force and exogeneity assumptions on the wi fe s wage rate and her labor market experience copyright 1987 by the econometric society

the demand for variety a household production perspective abstract economists have devoted substantial attention to firms supply of variety but little to consumers demand for variety employing the framework of home production we trace differences in demand to differences in the opportunity costs of activities associated with investments in human capital schooling alters time costs and changes the variety of activities household members choose time budgets from australia israel and west germany show that higher own and spouses incomes raise variety suggesting positive income effects education increases variety independent of income and earnings part of its impact goes beyond a correlation of educational attainment with preferences for variety

the cyclicality of real wages within employer employee matches using data from the panel study of income dynamics the author examines the cyclicality of wages within employer employee matches for the years 1970 91 recent research on wage cyclicality has suggested that wages are very procyclical tending to rise and fall with economic upturns and downturns even for workers who remain with the same employer the author finds however that the evidence for wage procyclicality within the matches he examines is rather weak except for the small group of workers who were paid by piece rate or commissions despite having acyclical wage rates men who were paid hourly had earnings movements that were very procyclical salaries exhibited little cyclicality but salaried workers who had income sources from bonuses commissions or overtime had procyclical earnings the results suggest that the increasing prevalence of incentive based pay will increase the procyclicality of wages within matches

consumption volatility liquidity constraints and household welfare we evaluate the impact of increased income uncertainty and financial liberalisation in the us on consumption volatility and household welfare we estimate euler equations and measure the volatility of unpredictable changes in consumption as the squared residuals we directly control for liquidity constraints using survey of consumer finances data on access to credit and document that despite the increase in household debt between 1983 and 2007 there was no decline in the proportion of liquidity constrained households consumption volatility increased significantly over this period especially for liquidity constrained households indicating substantial welfare losses

intertemporal substitution in labor supply evidence from micro data the sensitivity of the supply of labor to intertemporal variation in the wage is an important issue in macroeconomics the analysis of social security and pensions and the study of life cycle patterns of work this paper explores two approaches to the measurement of intertemporal substitution that have appeared in the literature the first approach is to use consumption to control for wealth and unobserved expectations about future wages in the labor supply equation the second approach is to estimate a first difference equation for hours in which labor supply from the previous period serves as a control for wealth and wage expectations the results indicate that intertemporal substitution elasticity for married men is positive but small

are earnings inequality and mobility overstated the impact of non classical measurement error abstract measures of inequality and mobility based on self reported earnings reflect attributes of both the joint distribution of earnings across time and the joint distribution of measurement error and earnings while classical measurement error would increase measures of inequality and mobility there is substantial evidence that measurement error in earnings is not classical in this paper we present the analytical links between nonclassical measurement error and some summary measures of inequality and mobility the empirical importance of nonclassical measurement error is explored using the survey of income and program participation sipp matched to tax records we find that the effects of nonclassical measurement error are large however these nonclassical effects are largely offsetting when estimating mobility as measured by the intertemporal correlation in earnings as a result sipp estimates of the correlation are similar to estimates based on tax records though sipp estimates of inequality

why do members of congress support agricultural protection it seems paradoxical that until recently developed countries have continued subsidizing agriculture even though their agricultural sectors had been declining in relative importance since the middle of the 20th century what drives support for agricultural protection the broad array of subsidies to farmers and taxes and quotas imposed on agricultural imports in developed countries we answer this question by testing three competing hypotheses about what drives support for agricultural protection in the us i legislator preferences ii electoral incentives or iii lobbying using data on the roll call votes of the members of the 106th through the 110th congresses 1999 2009 and the scores given to each legislator by the farm bureau our findings suggest that electoral incentives explain a great deal of the variation in support for agricultural protection but that legislator preferences and lobbying might play a role too moreover legislator preferences and electoral incentives appear to be substitutes for one another why does congress support agricultural protection because many members have electoral incentives to and because many of those who do not still have other personal or strategic interests at stake

the macroeconomic implications of rising wage inequality in the united states in recent decades american workers have faced a rising college premium a narrowing gender gap and increasing wage volatility this paper explores the quantitative and welfare implications of these changes the framework is an incomplete markets life cycle model in which individuals choose education intrafamily time allocation and savings given the observed history of the u s wage structure the model replicates key trends in cross sectional inequality in hours worked earnings and consumption recent cohorts enjoy welfare gains on average as higher relative wages for college graduates and for women translate into higher educational attainment and a more even division of labor within the household

a protectionist bias in majoritarian politics we develop a novel model of campaigns elections and policy making in which the ex ante objectives of national party leaders differ from the ex post objectives of elected legislators this generates a distinction between policy rhetoric and policy reality and introduces an important role for party discipline in the policy making process we identify a protectionist bias in majoritarian politics when trade policy is chosen by the majority delegation and legislators in the minority have limited means to influence choices the parties announce trade policies that favor specific factors and the expected tariff or export subsidy is positive positions and expected outcomes monotonically approach free trade as party discipline strengthens i introduction in a democracy the majority rules often this means that the policies enacted by elected governments reflect the preferences of some citizens more than those of others this feature of democracy commonly known as tyranny of the majority arises in institutional settings in which elected officials represent disproportionately the interests of their own constituents and electees who represent the minority have limited means to influence policy in this paper we argue that tyranny of the majority imparts a protectionist bias to democratic politics this is so even when the average citizen covets free trade and when every citizen has an equal probability of being represented in the policy making process by protection we mean policies that favor quasi fixed factors of production thus protection in our parlance refers both to tariffs that shield import competing industries from foreign competition and subsidies that promote exports the bias refers to the average or expected policy outcome we focus on majoritarian systems in which elected legislators represent geographic regions the existence of a protectionist bias requires only that i national party leaders cannot fully commit their candidates to adopt particular policies if elected ii mem

inter industry wage differentials revisited wage volatility and the option value of mobility analysis of data from the psid reveals that idiosyncratic wage volatility varies inversely with inter industry wage differentials and is positively correlated with both returns to industry tenure and rates of inter industry mobility an incomplete markets life cycle model in which inter industry mobility decisions and wage differentials are endogenously determined in equilibrium is then developed and shown to be capable of rationalizing these features of the data in the model the ability of worker to switch industries generates option value that is large enough to offset the standard risk premium that workers demand for exposure to excess wage volatility

testing for full insurance using exogenous information we strongly reject the full insurance hypothesis using testing variables that are not decision variables for the households under investigation we find that households are not insured against changes in the unemployment rate associated with the household head s occupational category using this exogenous information we also investigate the appropriateness of exogeneity assumptions on idiosyncratic variables that have been used as testing variables in the full insurance literature it is shown that several exogeneity assumptions made in the existing literature are potentially problematic

testing intertemporal substitution implicit contracts and hours restriction models of the labor market using micro data we present new tests of three theories of the labor market intertemporal substitution hours restrictions and implicit contracts the intertemporal substitution test we implement is an exclusion test robust to many specification errors and we consistently reject this model we model hours restrictions as part of an endogenous switching model we compare the implicit probit equation to an unrestricted probit equation for unemployment and reject the hours restriction model for the implicit contracts model we estimate non separable within period labor supply and consumption equations we test a cross equation restriction of the model and cannot reject the implicit contracts model jel e30 j22 j60

consumption and labor supply with partial insurance an analytical framework we develop a model with partial insurance against idiosyncratic wage shocks to quantify risk sharing closed form solutions are obtained for equilibrium allocations and for moments of the joint distribution of consumption hours and wages we prove identification and demonstrate how labor supply data are informative about risk sharing the model estimated with us data over the period 1967 2006 implies that i 39 percent of permanent wage shocks pass through to consumption ii the share of wage risk insured increased until the early 1980s and iii preference heterogeneity is important in accounting for observed dispersion in consumption and hours jel e21 e23 e31 e52

electoral competition and agricultural support in oecd countries agricultural trade protectionism in developed countries remains a politically charged issue yet few studies have attempted to explain the political dynamics behind this important trade issue we consider agricultural subsidies as a type of distributive policy that targets the agricultural sector at the expense of consumers and taxpayers based on cox 1987 1990 and myerson 1993 we argue that electoral systems that encourage politicians to appeal to a narrow constituency tend to have a higher level of agricultural support we test this theoretical hypothesis using oecd agricultural support data disaggregated by commodity and country a cross classified multilevel model is employed to account for complex variation of agricultural support across countries commodities and time our empirical results show that electoral systems that encourage politicians to target narrow broad constituencies are associated with relatively high low levels of agricultural subsidies

majoritarian electoral systems and consumer power price level evidence from the oecd countries a straightforward extension of the standard stigler peltzman model of regulation coupled with a taagepera shugart analysis of electoral system effects suggests a that the greater seat vote elasticities of majoritarian electoral systems will tilt policy in favor of consumers while propor tional systems should strengthen producers and b that the pro con sumer bias of majoritarian systems should be manifested in systemati cally lower prices empirical tests controlling for the structural determi nants of national price levels estab lished in the earlier law of one price literature establish majoritarian elec toral systems as a significant and robust predictor lowering national price levels in the mean oecd coun

centripetal and centrifugal incentives in electoral systems this paper investigates how electoral laws affect the position taking incentives of parties and candidates it seeks to extend the finding presented in the classical median voter theorem to a wide class of electoral systems or to show the limits of such extension the factors examined are the district magnitude the electoral formula the number of votes each voter is allowed to cast whether voters can cumulate their votes and whether voters can partially abstain i suggest a crude division of electoral systems into those producing predominantly centripetal incentives and those producing predominantly centrifugal incentives among the factors found to produce centripetal incentives at least in noncumulative systems are the following increases in the number of votes per voter outlawry of partial abstention and decreases in the district magnitude in systems allowing the cumulation of votes matters are a bit different

estimates of year to year volatility in earnings and in household incomes from administrative survey and matched data abstract we document trends in the volatility in earnings and household incomes between 1985 and 2005 in three different data sources administrative earnings records the survey of income and program participation sipp matched to administrative earnings records and sipp survey data in all data sources we find a substantial amount of year to year volatility in workers earnings and household incomes in the data sources that contain administrative earnings we find that volatility has been roughly constant and has even declined slightly since the mid 1980s these findings differ from what is found using survey data and what has been reported in previous studies

endowments and the allocation of schooling in the family and in the marriage market the twins experiment 03 we show how comparisons between the within twin correlations of human capital outcomes across identical and nonidentical twins can be used to identify the variability in the individual specific component of endowments and the responsiveness of schooling to individual specific endowments in the family and in the marriage market even when schooling is measured with error estimates from two twins samples indicate that 27 42 percent of the variance in log earnings obesity is due to variability in individual specific endowments allocations of schooling reinforce specific endowments and individual specific earnings endowments of men and their wives schooling are negatively associated

swimming upstream trends in the gender wage differential in the 1980s using michigan panel study of income dynamics data for 1979 and 1988 we analyze how a falling gender wage gap occurred despite changes in wage structure unfavorable to low wage workers the decrease is traced to gender specific factors which more than counterbalanced changes in measured and unmeasured prices working against women supply shifts net of demand were unfavorable for women generally and hurt high skilled more than middle and low skilled women by analyzing wages we find support for the notion of a gender twist in supply and demand having its largest negative effect on high skilled women

labor market search and schooling investment we generalize a search matching and bargaining model to allow individuals to acquire productivity enhancing schooling prior to labor market entry in general search frictions and weakness in bargaining position contribute to underinvestment in schooling from an efficiency perspective using estimates of a general equilibrium version of the model in which firm vacancy creation decisions are included we find that minimum wages and schooling subsidies improve aggregate welfare but have very different welfare impacts across the ability distribution in particular policies that maximize the average welfare of workers have strongly negative effects on the welfare of the least able

equilibrium search and tax credit reform an empirical equilibrium job search model with wage posting is developed to analyze the labor market impact of uk tax reforms the model allows for a rich characterization of the labor market with hours responses accurate representations of the tax and transfer system and both worker and firm heterogeneity the model is estimated with pre reform longitudinal survey data using a semi parametric estimation technique and the impact of actual tax reform policies is simulated the model predicts that the british working families tax credit and contemporaneous reforms increased employment with equilibrium effects found to play a relatively minor role

legislators and interest groups how unorganized interests get represented this paper derives a supply price for public policy using a constrained maximization model in the model three sets of agents each have preferences over outcomes organized interest groups offer campaign contributions to improve their own wealth voters offer votes to obtain outcomes closer to their most preferred outcomes and legislators seek both campaign contributions and votes to obtain reelection a given legislator s supply price for policy is shown to depend on the productivity of his effort as determined by committee assignments priority and ability and by the preferences of his unorganized constituency in the home district two extreme assumptions about the effectiveness of campaign spending in eliciting votes are used to illustrate the comparative statics properties of the model the prediction of the model is that interest groups will in general seek out legislators whose voters are indifferent to the policy the interest group seeks thus voters who do have preferences over policy are in effect represented even though they are not organized

does it matter who responded to the survey trends in the u s gender earnings gap revisited studies have shown a decreasing trend in the u s gender earnings gap since the 1980s the authors work with a framework established by blau and kahn 1997 jole 2006 ilrr who used the michigan panel of income dynamics psid to decompose that gap into observable and unobservable components in order to determine which contributing factors are gender specific and which can be attributed to the wage structure they extend the blau and kahn framework to consider measurement error due to the use of proxy representative respondents of the survey s earnings variable first they find a trend toward more females in the gender composition of the household respondents and second they estimate the impact of that change on blau and kahn s decomposition they determine that some of the changes in the gender earnings gap could actually be attributed to whether the surverys were self or proxy responded that is the actual reduction in the gender pay gap may be smaller than what the estimates without taking into account the measurement error might indicate the authors suggest the need for a careful validation study to ascertain the extent of the spurious measurement error effects

socio technical barriers to the use of energy efficient timber drying technology in new zealand abstract this study of industrial energy behaviours identifies barriers to the use of energy efficient drying technology in the new zealand timber industry and explores these barriers through the energy cultures lens vented kiln dryers were preferred by larger firms and heat pump kiln dryers were used by smaller firms although few firms could specify all their costs we found no significant differences in the average operating costs drying costs or commercial success of the larger and smaller firms we found that socio technical barriers create energy cultures at the level of both the firm and the sector supporting the dominance of vented kiln dryers the prevailing technologies practices and norms at the sector level strongly support vented kilns the status quo being embedded in the socio technical context hindering technological learning improved energy efficiency and innovation influential stakeholders in the industry were thus part of and locked into the industry wide energy culture and were not in a position to effect change we conclude that actors external to the prevailing industry energy culture need to leverage change in the industry norms practices and or technologies in order to reap the advantages of energy efficient drying technology assist its continued evolution and avoid the risks of path dependency

does the confucius institute impact international travel to china a panel data analysis this article examines the impact of confucius institutes on inbound travel to china we estimate a panel gravity model of inbound tourism flows to china between 2004 and 2010 we use a poisson pseudo maximum likelihood estimator to control for heteroscedasticity endemic in gravity models santos silva and tenreyro 2006 we find that the presence of confucius institute s in the source country increases overall tourism in general and business and worker tourists in particular

does electoral competition affect politicians trade policy preferences evidence from japan this study examines the effect of electoral competition on politicians trade policy preferences using candidate observations from the house of representatives in japan s 2012 general election the study clarifies the effects of constituency size and the electoral strength of constituencies on candidates political stances the empirical results provide evidence that politicians preferences for trade policy are sensitive to electoral pressure but their reactions differ depending on the characteristics of each constituency the results reveal that for a broad constituency with a large concentration of agricultural workers election candidates are more likely to support protectionism than their counterparts running in a narrow constituency for city district election candidates electoral strength measured by the vote margin significantly affects their trade policy preferences candidates in close elections are more likely to be protectionist than candidates elected by a substantial majority suggesting that electoral pressures deter politicians from supporting trade liberalization

short versus long coalitions electoral accountability and the size of the public sector this article examines the policy consequences of the number of parties in government we argue that parties externalize costs not borne by their support groups larger parties thus internalize more costs than small parties because they represent more groups this argument implies that the public sector should be larger the more parties there are in the government coalition we test this prediction using yearly time series cross sectional data from 1970 to 1998 in 17 european countries we find that increasing the number of parties in government increases the fraction of gdp accounted for by government spending by close to half a percentage point or more than one billion current dollars in the typical year we find little support for the alternative claim that the number of legislative parties affects the size of the public sector except via the number of parties in government

children time allocation and consumption insurance we study choices of households deciding on consumption and allocation of spouses time to work leisure and child care with uncertainty the allocation of goods and time over the life cycle also

exploring differences in employment between household and establishment data using a large data set that links individual current population survey cps records to employer reported administrative data we document substantial discrepancies in basic measures of employment status that persist even after controlling for known definitional differences between the two data sources we hypothesize that reporting discrepancies should be most prevalent for marginal workers and for marginal or nonstandard jobs and we find systematic associations between the incidence of reporting discrepancies and observable person and job characteristics that are consistent with this hypothesis the paper discusses the implications of the reported findings for both micro and macro labor market analysis

income variance dynamics and heterogeneity recent theoretical work has shown the importance of measuring microeconomic uncertainty for models of both general and partial equilibrium under imperfect insurance in this paper the assumption of i i d income innovations used in previous empirical studies is removed and the focus of the analysis is placed on models for the conditional variance of income shocks which is related to the measure of risk emphasized by the theory we first discriminate amongst various models of earnings determination that separate income shocks into idiosyncratic transitory and permanent components we allow for education and time specific differences in the stochastic process for earnings and for measurement error the conditional variance of the income shocks is modelled as a parsimonious arch process with both observable and unobserved heterogeneity the empirical analysis is conducted on data drawn from the 1967 1992 panel study of income dynamics we find strong evidence of sizeable arch effects as well as evidence of unobserved heterogeneity in the variances

downward nominal wage flexibility real or measurement error this paper presents a new method to correct for measurement error in wage data and applies this method to address an old question how much downward wage flexibility is there in the united states we apply standard methods developed by bai and perron to identify structural breaks in time series data applying these methods to wage histories allows us to identify when each person experiences a change in nominal wages the length of the period of constant nominal wages is left unrestricted and is allowed to differ across individuals as are the size and direction of the nominal wage change we apply these methods to data from the survey of income and program participation the evidence we provide indicates that the probability of a cut in nominal wages is substantially overstated in data that are not corrected for measurement error

dynamics of energy technologies and global change technological choices largely determine the long term characteristics of industrial society including impacts on the natural environment however the treatment of technology in existing models that are used to project economic and environmental futures remains highly stylized based on work over two decades at iiasa we present a useful typology for technology analysis and discuss methods that can be used to analyze the impact of technological changes on the global environment especially global warming our focus is energy technologies the main source of many atmospheric environmental problems we show that much improved treatment of technology is possible with a combination of historical analysis and new modeling techniques in the historical record we identify characteristic l such network e ects yield high barriers to entry even for superior competitors these simple observations allow three improvements to modeling of technological change and its consequences for global environmental change one is that the replacement of long lived infrastructures over time has also replaced the fuels that power the economy to yield progressively more energy per unit of carbon pollution from coal to oil to gas such replacement has d they also include endogenous generation of s we show that doing so can yield projections with lessened environmental impacts without necessarily incurring negative e ect on the economy arriving on that path by the year 2100 depends on intervening actions such as incentives to promote greater diversity in technology and lower barriers to entry for new infrastructures that could accelerate historical trends of decarbonization 1999 elsevier science ltd all rights reserved

response error and the union wage differential broad variation in estimates of the union wage gap has perplexed labor economists one specification error that is consistent with the observed variation is measurement error in reported union status this article applies results of bollinger 1996 to estimate a range for the union wage gap both a cross sectional model and a fixed effects model are estimated in order for the true coefficient in the fixed effects model to be bounded below the true coefficient in the cross sectional estimates measurement error would have to be less than 0 8 the difference between the fixed effects estimates and the cross sectional estimates is primarily due to measurement error rather than to unobserved heterogeneity an examination of differences in returns to union membership by industry occupation and educational level shows that these differences are largely robust to measurement error many of these differences would be found even if error rates were as high as 10 or more an array of empirical estimates for the union wage differential has resulted from the variety of approaches to estimation lewis 1986 reviews the vast literature that attempts to estimate the union wage effect two extremes are represented by mincer 1983 who estimates the wage differential to be 0 01 while farber 1990 reports an estimate of 0 26 clearly specification error is the root cause of these differences the literature has focused upon unobserved heterogeneity in worker status as the main specification error frequently estimation approaches based on within estimators applied to fixed effects models using panel data are used to account for the possibility of unobserved heterogeneity as would be predicted by unobserved heterogeneity lewis 1986 p 94 reports that the panel wage gap estimates surveyed in the chapter on the average are roughly half as large as the corresponding cross section estimates this is often taken as evidence for bias in the cross section estimates due to the presence of fixed effects however these results are also consistent with measurement error in the report of the union status indeed chapter 5 in lewis 1986 focuses upon this possibility the difference might be the result of union status measurement error p 94 this article applies results of bollinger 1996 to compare the effect of measurement error on cross sectional estimates and panel estimates of the union wage differential bollinger 1996 establishes bounds for the slope coefficients of a linear regression when a binary regressor is thought to have measurement error the results here do not identify a point estimate of the union wage differential they relax many of the assumptions that are required to obtain the point estimates these bounds serve the purpose of sensitivity analysis as called for by leamer 1985