the empirical content of the roy model this paper clarifies and extends the classical roy model of self selection and earnings inequality the original roy model based on the assumption that log skills are normally distributed is shown to imply that pursuit of comparative advantage in a free market reduces earnings inequality compared to the earnings distribution that would result if workers were randomly assigned to sectors aggregate log earnings are right skewed even if one sectoral distribution is left skewed most major implications of the log normal roy model survive if differences in skills are log concave however few implications of the model survive if skills are generated from more general distributions we consider the identifiability of the roy model from data on earnings distributions the normal theory version is identifiable without regressors or exclusion restrictions sectoral distributions can be identified knowing only the aggregate earnings distribution for general skill distributions the model is not identified and has no empirical content with sufficient price variation the model can be identified from multimarket data cross sectional variation in regressors can substitute for price variation in restoring empirical content to the roy model

unemployment insurance design how to induce moving and retraining evidence suggests that unemployed individuals sometimes can a ect their job prospects by undertaking a costly action like deciding to move or retrain realistically such an opportunity arises only for some individuals and the identity of those is unobservable unemployment insurance should then be designed to induce individuals to exploit existing opportunities to move or retrain without excessively diminishing the insurance value for the remaining unemployed this problem has been neglected in previous literature on unemployment insurance design and we show that it may have important consequences in particular we derive closed form solutions showing that unemployment bene ts should increase over the unemployment spell having an initial period with low bene ts and a substantial increase after this period has expired jel classi cation j65 j64 e24

structural transformation the mismeasurement of productivity growth and the cost disease of services if workers self select into industries based upon their relative productivity in different tasks and comparative advantage is aligned with absolute advantage then the average efficacy of a sector s workforce will be negatively correlated with its employment share this might explain the difference in the reported productivity growth of contracting goods and expanding services instrumenting with defense expenditures i find the elasticity of worker efficacy with respect to employment shares is substantially negative albeit estimated imprecisely the estimates suggest that the view that goods and services have similar productivity growth rates is a plausible alternative characterization of growth in developed economies jel e23 e24 h56 j24 o41 o47 one of the strongest and seemingly most accurate characterizations of the process and problems of growth in advanced economies is william baumol s cost disease of services baumol s argument begun in papers as early as 1965 and continuing to this very day e g baumol and bowen 1965 baumol 1967 baumol blackman and wolff 1985 and baumol 2012 starts from the premise that productivity growth is inherently more difficult to achieve in the production of services than in the pro

the long term consequences of resource based specialisation using geological variation in oil abundance in the southern us i examine the long term effects of resource based specialisation through economic channels in 1890 oil abundant counties were similar to other nearby counties but after oil was discovered they began to specialise in its production from 1940 90 oil abundance increased local employment per square kilometre especially in mining but also in manufacturing oil abundant counties had higher population growth higher per capita income and better infrastructure 2010 the author s the economic journal 2010 royal economic society

the gender gap fertility and growth changes in fertility have long been recognized as important correlates of economic growth with the relationship between the level of fertility and the level of income per capita being one of the strongest observable correlations in cross country data this paper examines the linkages between fertility and growth theory the structure of the model is presented in sections on production couples decision making system dynamics and steady state equilibria the first component of the model is that increases in capital per worker raise womens relative wages since capital is more complementary to womens labor input than to mens the second component is that increasing womens relative wages reduces fertility by raising the cost of children more than household income finally lower fertility raises the level of capital per worker a positive feedback loop generates demographic transition a rapid decline in fertility accompanied by accelerated output growth

unobserved variables and the elusive added worker effect consistent with recent empirical work this study finds no evidence of the added worker effect among married couples in the u s it is hypothesized that unobserved variables may be obscuring this added worker behavior this hypothesis is rejected the labor supply behavior of married women is influenced by the permanent and not the transitory nature of their spouses unemployment wives with frequently unemployed husbands have lower reservation wages yet apart from their measured human capital these same women face persistently lower wage rates and higher unemployment propensities in the labor market as a result married women with unemployed spouses are no more likely to be in the labor force and are actually less likely to be employed than observationally equivalent married women with employed spouses copyright 1991 by the london school of economics and political science

from malthusian stagnation to modern growth this paper investigates the historical evolution of the relationship among population growth technological change and standard of living the analysis focuses on two most important differences among the malthusian regime post malthusian regime and modern growth regime these were the behavior of income per capita and the relationship between the level of income per capita and the population growth rate the modern growth regime is characterized by steady growth in both income per capita and the level of technology in the malthusian regime technological progress and population growth was glacial by modern standards and income per capita was fairly constant in contrast to the modern growth regime the relationship between per capita income and population growth in the malthusian regime was positive post malthusian regime shared one characteristic with each of the two regimes in addition this paper developed and described an endogenous growth model consistent with the above mentioned transition process

the added worker effect the term added worker effect usually refers to a temporary increase in the labor supply of married women whose husbands have become unemployed this paper presents a new approach to the empirical study of the added worker effect which emphasizes the role of employment uncertainty and credit constraints in generating short run participation and employment patterns the estimates are based on employment transition probabilities rather than static measures of labor supply and are used in a dynamic simulation of changes in the employment and participation rates of wives following an exogenous increase in unemployment among their husbands the results show a small but significant added worker effect at least for white families and suggest that the apparent disagreement among previous studies may stem from different approaches to measuring responses to a transitory event such as an unemployment spell

child labor and the labor supply of other household members evidence from 1920 america this paper analyses the effect of child labor on household labor supply using 1920 us census micro data the aim of the analysis is to understand who in the household benefits from child labor in order to identify a source of exogenous variation in child labor i use state specific child labor laws i find that a rise in the proportion of working children by household is associated with no variation in parents labor supply i also find a strong negative externality among children as the proportion of working children by household rises everything else equal the probability that each child works falls while the probability that he attends school rises this suggests that parents redistribute entirely the returns from child labor to the children in the household consistent with a model of household labor supply with fully altruistic parents

corrigendum on a life cycle model of female labour supply in the empirical work in our article on the intertemporal substitution of leisure time for married women heckman and macurdy 1980 we inadvertently constrained the estimated intertemporal substitution elasticity to be too high since this parameter plays a prominent role in discussions of equilibrium models of the business cycle and since our empirical work has been cited in discussions on this topic e g hall 1980 we would like to present a corrected set of empirical results for our model the period t utility function adopted in this note is in the notation of our original paper equation 15

structural transformation and the deterioration of european labor market outcomes this paper examines hours worked in continental europe and the united states from 1956 to 2003 the empirical work establishes two results first hours worked in europe decline by almost 45 percent compared to the united states over this period second this decline is almost entirely accounted for by the fact that europe develops a much smaller market service sector than the united states a simple model of time allocation is used to understand these patterns i find that relative increases in taxes and technological catch up can account for most of the differences between the european and american time allocations over this period

unemployment insurance and precautionary saving abstract models of precautionary saving imply that households will hold more assets when faced with greater income uncertainty however previous empirical studies of income uncertainty have produced somewhat mixed support for the precautionary saving hypothesis in this paper we note that differences in the state contingent income stream available to workers through the unemployment insurance ui program provides an excellent source of variation for testing the presence of a precautionary savings motive simulations of a stochastic life cycle model suggest that a ui system similar to the type currently in place in the u s can lead to a significant reduction in the assets accumulated by a median worker moreover there is considerable variation in the ui benefit schedules for workers living in different states in the u s which provides an exogenous source of variation for empirically testing the precautionary saving hypothesis we carry out this test using data on expected ui benefit replacement rates and financial assets held by households in the survey of income and program participation our empirical results are consistent with the predictions of the model and suggest that reducing the ui benefit replacement rate by 50 percent would increase gross financial asset holdings by 14 percent or 241 for the average worker we also find empirical evidence that this crowd out effect of ui on household saving is stronger for those facing higher unemployment risk and weaker for older workers both of which are implications from our precautionary saving model

family labor supply and the timing of cash transfers evidence from the earned income tax credit abstract this paper exploits the unique disbursement timing and benefit rules of the earned income tax credit eitc to provide new evidence on how families adjust their labor supply in response to receiving anticipated cash transfers i find that income seasonality caused by eitc receipt leads to changes in the intra year labor supply patterns of married women on average receiving a 1 000 payment significantly reduces the proportion of married women who work by 1 3 percentage points in the month when the eitc is received additionally this labor supply response is mainly driven by those who are secondary earners or liquidity constrained

worktime regulations and spousal labor supply we study interdependencies in spousal labor supply by exploiting the design of the french workweek reduction which introduced exogenous variation in one s spouse s labor supply at constant earnings treated employees work on average two hours less per week husbands of treated women respond by reducing their labor supply by about half an hour consistent with substantial leisure complementarity and specifically cut the non usual component of their workweek leaving usual hours unchanged women s response to their husband s treatment is instead weak and rarely statistically significant possibly due to heavier constraints in the organization of their workweek

the resource curse a statistical mirage abstract a surprising feature of resource rich economies is slow growth it is often argued that natural resource production impedes development by creating market or institutional failures this paper establishes an alternative explanation a slow growing resource sector a declining resource sector is disproportionately reflected in resource dependent countries additionally there is little evidence that resource dependence impedes growth in non resource sectors more generally this paper illustrates the importance of considering industry composition in cross country growth regressions

lifetime earnings and the vietnam era draft lottery evidence from social security administrative records errata the randomly assigned risk of induction generated by the draft lottery is used to construct estimates of the effect of veteran status on civilian earnings these estimates are not biased by the fact that certain types of men are more likely than others to service in the military social security administrative records indicate that in the early 1980s long after their service in vietnam had ended the earnings of white veterans were approximately 15 percent less than the earnings of comparable nonveterans copyright 1990 by american economic association

technology trade and growth a unified framework abstract our recent work examines the links among innovation technology trade and growth one strand focuses on research activity technology diffusion and growth the other examines technology and trade in this paper we exploit the common treatment of technology in these two strands to provide a parsimonious model of innovation growth and trade we examine the effect of lower geographic barriers to trade on research and the effects of scale and research productivity on relative incomes

does unemployment insurance crowd out spousal labor supply previous research on unemployment insurance ui has emphasized the program s effect on individual search behavior this state contingent income may also reduce the labor supply of family members during the unemployment spell we investigate this question within the context of wives labor supply responses to their husbands unemployment spells we find strong crowdout of this form of family self insurance our estimates imply that for each dollar of ui receipt wives earn up to 73 cents less the reduction in spousal hours of work is over 40 as large as previous estimates of the effect of ui on search time of husbands

household search and the aggregate labor market we develop a theoretical model with labour market frictions incomplete financial markets and with households which have two members households face unemployment risks but their members adjust their labour supplies to insure against unemployment we use the model to explain the cyclical properties of aggregate employment and participation as in the u s data the model predicts that the participation rate the fraction of individuals that want jobs is not strongly correlated with aggregate economic activity this property is in sharp contrast to the strongly procyclical participation predicted by both neoclassical models and models with search frictions when we assume bachelor households or households with infinitely many members complete markets in the two member household model and in the data primary earners are always in the labour force secondary earners have a mildly countercyclical participation rate and a mildly procyclical employment rate their behaviour insures the household against unemployment risks

borrowing during unemployment unsecured debt as a safety net this paper examines whether unsecured credit markets help disadvantaged households supplement temporary shortfalls in earnings by investigating how unsecured debt responds to unemployment induced earnings losses results indicate that very low asset households those in the bottom decile of total assets do not borrow in response to these shortfalls however other low asset households do borrow increasing unsecured debt by more than 11 cents per dollar of earnings lost in contrast wealthy households do not increase unsecured debt during unemployment the evidence suggests that very low asset households do not have sufficient access to unsecured credit to smooth consumption over transitory unemployment spells

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

human capital risk contract enforcement and the macroeconomy we use data from the survey of consumer finance and survey of income program participation to show that young households with children are under insured against the risk that an adult member of the household dies we develop a tractable macroeconomic model with human capital risk age dependent returns to human capital investment and endogenous borrowing constraints due to the limited pledgeability of human capital limited contract enforcement we show analytically that consistent with the life insurance data in equilibrium young households are borrowing constrained and under insured against human capital risk a calibrated version of the model can quantitatively account for the life cycle variation of life insurance holdings financial wealth earnings and consumption inequality observed in the us data our analysis implies that a reform that makes consumer bankruptcy more costly like the bankruptcy abuse prevention and consumer protection act of 2005 leads to a substantial increase in the volume of both credit and insurance

genuine savings and sustainability genuine savings gs has emerged as the leading economic indicator of sustainable economic development at the country level it derives from the literatures on weak sustainability wealth accounting and national income accounting we discuss the theoretical underpinnings of gs focusing on the relationship between changes in a nation s extended capital stock and the future path of consumption the indicator has entered widespread use propelled by the world bank s publications despite its varying performance as a predictor for future consumption notwithstanding the extensive body of literature reviewed promising future research avenues are identified

the role of the structural transformation in aggregate productivity we investigate the role of sectoral differences in labor productivity in explaining the process of structural transformation the secular reallocation of labor across sectors and the time path of aggregate productivity across countries using a simple model of the structural transformation that is calibrated to the growth experience of the united states we measure sectoral labor productivity differences across countries productivity differences between rich and poor countries are large in agriculture and services and smaller in manufacturing moreover over time productivity gaps have been substantially reduced in agriculture and industry but not nearly as much in services in the model these sectoral productivity patterns generate implications that are broadly consistent with the cross country evidence on the structural transformation aggregate productivity paths and relative prices we show that productivity catch up in industry explains about 50 percent of the gains in aggregate productivity across countries while low relative productivity in services and the lack of catch up explains all the experiences of slowdown stagnation and decline observed across countries

the value of registry data for consumption analysis an application to health shocks abstract this paper measures consumption expenditures using registry data on income and asset holdings in sweden we show how a registry based measure complements traditional survey measures of consumption and can alleviate some critical limitations we describe the construction of our measure which builds on prior work and exploits the identity coming from the household budget constraint between consumption expenditures and income net of savings we demonstrate the value of the registry based measure to study consumption responses to shocks also relative to surveyed consumption in our application to health shocks we find that swedish household experience permanent earning drops but generous social transfers provide substantial consumption smoothing we document important heterogeneity in consumption responses and the limited role for private means

recent trends in insured and uninsured unemployment is there an explanation this paper explores the recent decline in the fraction of unemployed workers who receive unemployment insurance benefits using march current population surveys we compare the fraction who are potentially eligible for benefits with the fraction who receive them the decline in insured unemployment is almost entirely due to a decline in the early 1980s in the takeup rate for benefits we analyze the determinants of the takeup rate using both aggregated state level data and micro data at least half the decline is due to an increasing share of unemployment in states with lower takeup rates

reexamining the consumption smoothing benefits of unemployment insurance abstract the great recession spurred renewed interest in the moral hazard effects of the unemployment insurance ui program however little research has focused on determining its benefits this paper examines the consumption smoothing benefit of the ui program over the last 40 years finding strong evidence of heterogeneity in this effect over time in particular the effects of ui are smaller in the 1990s compared with the 1970s the 1990s were unique because of the long period of low unemployment rates as well as relatively low ui program generosity thus we test whether the consumption smoothing effects vary by the state unemployment rate and average program generosity we find suggestive evidence that the effects are larger when the state unemployment rate and average generosity are high together these two dimensions can explain around 30 46 of the differential effect that we find in the 1990s

how important is intra household risk sharing for savings and labor supply abstract while it is recognized that the family is a risk sharing institution little is known about the quantitative effects of this source of insurance on savings and labor supply in this paper we present a model where workers females and males are subject to idiosyncratic employment risk and where capital markets are incomplete a household is formed by a female and a male who decide on consumption savings and labor supplies in a calibrated version of our model we find that intra household risk sharing has its largest impact among wealth poor households while the wealth rich use mainly savings to smooth consumption across unemployment spells wealth poor households rely on spousal labor supply for instance for low wealth households average hours worked by wives of unemployed husbands are 8 higher than those worked by wives of employed husbands this response in wives hours makes up 9 of lost family income we also study consumption losses upon an unemployment spell precautionary savings and the crowding out effects of the public unemployment insurance program on the extent of risk sharing within the household

unemployment insurance design inducing moving and retraining evidence suggests that unemployed individuals can sometimes aect their job prospects by undertaking a costly action like deciding to move or retrain realistically such an opportunity only arises for some individuals and the iden tity of those may be unobservable ex ante the problem of characterizing con strained optimal unemployment insurance in this case has been neglected in previous literature we construct a model of optimal unemployment insurance where multiple incentive constraints are easily handled the model is used to analyze the case when an incentive constraint involving moving costs must be respected in addition to the standard constraint involving costly unobserv able job search in particular we derive closed form solutions showing that when the moving retraining incentive constraint binds unemployment bene ts should increase over the unemployment spell with an initial period with low bene ts and an increase after this period has expired

risk and farm operator labour supply this study uses a large increase in us federal crop insurance subsidies as a natural experiment to identify the importance of risk for farm operator labour supply subsidy increases induced greater crop insurance coverage which in turn reduced farmers financial risks crop insurance participation data are merged with farm level census of agriculture data from 1992 and 1997 to compare how individuals off farm labour supply changed in response to the policy induced change in insurance coverage the empirical approach controls for unobserved heterogeneity and accounts for the censored nature of the data it is found that greater insurance coverage reduces the off farm labour supply of operators who produced at least 100 000 of output and increased the labour supply of small farm operators who produced less than 25 000 of output

moral hazard vs liquidity and optimal unemployment insurance this paper presents new evidence on why unemployment insurance ui benefits affect search behavior and develops a simple method of calculating the welfare gains from ui using this evidence i show that 60 percent of the increase in unemployment durations caused by ui benefits is due to a liquidity effect rather than distortions on marginal incentives to search moral hazard by combining two empirical strategies first i find that increases in benefits have much larger effects on durations for liquidity constrained households second lump sum severance payments increase durations substantially among constrained households i derive a formula for the optimal benefit level that depends only on the reduced form liquidity and moral hazard elasticities the formula implies that the optimal ui benefit level exceeds 50 percent of the wage the exact identification approach to welfare analysis proposed here yields robust optimal policy results because it does not require structural estimation of primitives

disability earnings income and consumption using longitudinal data for the period 1968 2005 for a sample of male household heads we determine the prevalence of disability during the working years and examine how the extent of disability affects a range of outcomes including earnings income and consumption we have seven main findings first disability rates are high we divide the disabled along two dimensions based on the persistence and severity of their work limiting condition we estimate that a person reaching age 56 has a 53 percent chance of having been disabled at least once during his working years and a 19 percent chance that he has begun a chronic and severe disability second the economic consequences of disability are frequently profound ten years after disability onset a person with a chronic and severe disability on average experiences a 68 percent decline in earnings a 32 percent decline in after tax income a 22 percent decline in food and housing consumption and a 21 percent decline in food consumption third the various economic consequences differ sharply across disability groups the outcome declines for those with a chronic and severe disability are often more than twice as large as those for the average disabled fourth our findings show the partial and incomplete roles that individual savings family support and social insurance play in reducing the consumption drop that follows disability only about half of this most disabled group reports receiving social security disability insurance or supplemental security income fifth we find a noticeable fall in earnings and income prior to the onset of a reported disability consumption also falls somewhat suggesting that future disability is partially but incompletely predictable in the short run sixth time use and detailed consumption data further indicate that disability is associated with a decline in well being seventh the quantities we have estimated combined with elasticities from the literature allow us to examine the optimality of current compensation for the disabled we find that the current compensation for our most disabled group appears to be lower than is optimal

female labour supply and household employment shocks maternity leave as an insurance mechanism this paper investigates the role of unpaid maternity leave in providing household insurance against paternal employment shocks the main outcome is the timing of a mothers return to work after having a child exploiting the us family and medical leave act we find that mothers eligible for maternity leave speed up their return to work in response to a paternal shock with the conditional probability of being in work 49 higher than in households with no unpaid maternity leave further evidence is provided on the insurance role of unpaid maternity leave through i no significant interaction between paid maternity leave and the paternal shock and ii smoothing of consumption effects of the shock for households covered by unpaid leave

the impact of protective measures for female workers policies designed to protect female workers have controversial effects on labor market outcomes both in theory and in practice the analysis uses repeated cross sections of household survey data for taiwan to estimate the impact of working hours restrictions and maternity benefits differential coverage across industrial sectors and demographic groups provides a unique opportunity to identify the impact of both policies in a single natural experiment framework while working hours restrictions have a negative impact on women s actual hours worked and employment maternity benefits increase these labor inputs implying that women value the opportunity to return to jobs they might otherwise have to leave

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 entry of the wife into the labor force in response to the husband s unemployment a study of the added worker effect in brazilian metropolitan areas abstract the temporary participation in the labor force of wives whose husbands have become unemployed has been referred to in the literature as the added worker effect awe previous research conducted using data from the united states has found only a small awe a result that accords with life cycle models with perfect capital markets the current article uses panel data obtained using a short recall period to evaluate the awe in the six major brazilian metropolitan areas our results show a positive awe that is much more substantial than those found for the u s economy the finding of an important awe for brazil suggests that liquidity constraints may prevent brazilian households from sufficiently smoothing income and consumption in periods when the male head of the family is unemployed alternatively the significant awe may indicate that the husband s unemployment signals household members that there may be a substantial reduction in future income flow

booming sector and de industrialisation in a small open economy this paper presents a theoretical analysis of the dutch disease the phenomenon whereby a boom in one traded goods sector squeezes porfitability in other traded goods sectors both by directly bi

erratum moral hazard versus liquidity and optimal unemployment insurance this paper presents new evidence on why unemployment insurance ui benefits affect search behavior and develops a simple method of calculating the welfare gains from ui using this evidence i show that 60 percent of the increase in unemployment durations caused by ui benefits is due to a liquidity effect rather than distortions on marginal incentives to search moral hazard by combining two empirical strategies first i find that increases in benefits have much larger effects on durations for liquidity constrained households second lump sum severance payments increase durations substantially among constrained households i derive a formula for the optimal benefit level that depends only on the reduced form liquidity and moral hazard elasticities the formula implies that the optimal ui benefit level exceeds 50 percent of the wage the exact identification approach to welfare analysis proposed here yields robust optimal policy results because it does not require structural estimation of primitives c 2008 by the university of chicago all rights reserved this abstract was borrowed from another version of this item

worker displacement and the added worker effect this article examines the added worker effect which is the labor supply response of wives to their husbands job losses unlike past studies which focused on the husbands current unemployment status this article analyzes wives responses before and after job losses to examine the life cycle labor supply adjustments using panel study of income dynamics data reveals small predisplacement effects and large persistent postdisplacement effects the timing of the responses differs with type of displacement possibly because of differences in the information acquired before job loss long run labor supply increases compensate for over 25 of the husbands lost income

the welfare implications of increasing disability insurance benefit generosity abstract in order to evaluate whether workers are over or under insured through the disability insurance di program we develop a framework that allows us to simulate the benefits as well as the costs associated with marginal changes in payment generosity from a representative cross sectional sample of the population under the assumption that individuals are reasonably risk averse we find that the typical worker would value increased benefits somewhat above the average costs of providing them however whether the benefit increases tend to lower or raise utility when we average across all individuals in our sample is sensitive to assumptions that affect the relative marginal utility of income to disabled individuals

optimal fiscal policy and different degrees of access to international capital markets abstract empirically the cyclical pattern of fiscal policy differs between developed and developing countries with in particular much greater pro cyclicality and volatility of public investment in developing countries in this paper i provide a theoretical explanation for the observed differences by analyzing optimal fiscal policy under different degrees of access to world capital markets if the supply of foreign capital is elastic as in a developed country then it is optimal to adjust to an adverse external shock by borrowing from abroad to finance public expenditure and cutting taxes to smooth private consumption if the supply of foreign capital is inelastic however as in a developing country the optimal adjustment policy is to reduce public investment by much more than public consumption and to raise consumption taxes

direct and cross effects of employment protection the case of parental childcare i examine whether employment protection affects the willingness of working parents to provide childcare using a reform that made it easier for employers to dismiss workers in small firms i find that softer employment protection reduces the use of temporary parental leave among directly treated fathers in addition i find that households respond to an increase in the dismissal risk by reducing temporary parental leave for the indirectly treated spouse spousal labor supply can thus serve as informal insurance against adverse income shocks

tactical sales forecasting using a very large set of macroeconomic indicators abstract tactical forecasting in supply chain management supports planning for inventory scheduling production and raw material purchase amongst other functions it typically refers to forecasts up to 12 months ahead traditional forecasting models take into account univariate information extrapolating from the past but cannot anticipate macroeconomic events such as steep increases or declines in national economic activity in practice this is countered by using managerial expert judgement which is well known to suffer from various biases is expensive and not scalable this paper evaluates multiple approaches to improve tactical sales forecasting using macro economic leading indicators the proposed statistical forecast selects automatically both the type of leading indicators as well as the order of the lead for each of the selected indicators however as the future values of the leading indicators are unknown an additional uncertainty is introduced this uncertainty is controlled in our methodology by restricting inputs to an unconditional forecasting setup we compare this with the conditional setup where future indicator values are assumed to be known and assess the theoretical loss of forecast accuracy we also evaluate purely statistical model building against judgement aided models where potential leading indicators are pre filtered by experts quantifying the accuracy cost trade off the proposed framework improves on forecasting accuracy over established time series benchmarks while providing useful insights about the key leading indicators we evaluate the proposed approach on a real case study and find 18 8 accuracy gains over the current forecasting process

unemployment insurance and unemployment spells this paper tests the effects of the level and length of unemployment insurance benefits on unemployment durations the paper particularly studies individual behavior during the weeks just prior to when benefits lapse higher unemployment insurance benefits are found to have a strong negative effect on the probability of leaving unemployment however the probability of leaving unemployment rises dramatically just prior to when benefits lapse individual data are used with accurate information of spell durations and the level and length of benefits the semiparametric estimation techniques used in the paper yield more plausible estimates than conventional approaches and provide useful diagnostics copyright 1990 by the econometric society

disability benefits consumption insurance and household labor supply while a mature literature finds that disability insurance di receipt discourages work the welfare implications of these findings depend on two rarely studied economic quantities the full cost of di allowances to taxpayers summing over di transfer payments benefit substitution to or from other transfer programs and induced changes in tax receipts and the value that individuals and families place on receiving benefits in the event of disability we comprehensively assess these missing margins in the context of norway s di system drawing on two strengths of the norwegian environment first norwegian register data allow us to characterize the household impacts and fiscal costs of disability receipt by linking employment taxation benefits receipt and assets at the person and household level second random assignment of di applicants to norwegian judges who differ systematically in their leniency allows us to recover the causal effects of di allowance on individuals at the margin of program entry accounting for the total effect of di allowances on both household labor supply and net payments across all public transfer programs substantially alters our picture of the consumption benefits and fiscal costs of disability receipt while di allowance causes a significant increase in household income and consumption on average it has little impact on income or consumption of married applicants because spousal earnings responses via the added worker effect and benefit substitution entirely offset di benefit payments among those who are allowed relative to those who are denied to develop the welfare implications of these findings we estimate a dynamic model of household behavior that translates employment reapplication and savings decisions into revealed preferences for leisure and consumption we find that household valuation of receipt of di benefits is considerably greater for single and unmarried individuals than for married couples because spousal labor supply substantially buffers household income and consumption in the event of di denial

political foundations of the resource curse in this paper we argue that the political incentives that resource endowments generate are the key to understanding whether or not they are a curse we show 1 politicians tend to over extract natural resources relative to the efficient extraction path because they discount the future too much and 2 resource booms improve the efficiency of the extraction path however 3 resource booms by raising the value of being in power and by providing politicians with more resources which they can use to influence the outcome of elections increase resource misallocation in the rest of the economy 4 the overall impact of resource booms on the economy depends critically on institutions since these determine the extent to which political incentives map into policy outcomes countries with institutions that promote accountability and state competence will tend to benefit from resource booms since these institutions ameliorate the perverse political incentives that such booms create countries without such institutions however may suffer from a resource curse

job displacement disability and divorce earnings shocks should affect divorce probability by changing a couple s expected gains from marriage we find that the divorce hazard rises after a spouse s job displacement but does not change after a spousal disability this difference casts doubt on a purely pecuniary motivation for divorce following earnings shocks since both types of shocks exhibit similar long run economic consequences furthermore the increase in divorce is found only for layoffs and not for plant closings suggesting that information conveyed about a partner s noneconomic suitability as a mate due to a job loss may be more important than financial losses in precipitating divorce

windfalls structural transformation and specialization abstract macro cross country data and micro us county data indicate that resource rich regions have small but relatively productive manufacturing sectors and large but relatively unproductive non manufacturing sectors we suggest a process of specialization to explain these facts windfall revenue induces labor to move from the traded manufacturing to the non traded non manufacturing sector a self selection of workers takes place only those most skilled in manufacturing sector work remain in manufacturing workers that move to non manufacturing however will be less skilled at non manufacturing sector work than those who were already employed there resource induced structural transformation thus results in higher productivity in manufacturing and lower productivity in non manufacturing we construct and calibrate a two sector open economy model of self selection and show that exogenous cross country variation in natural resource endowments is large enough to explain the direction and magnitude of sectoral employment and productivity differences between resource rich and resource poor regions the model implies that low aggregate productivity found in some resource rich countries is not caused by a resource induced decline of a relatively productive manufacturing sector rather the higher manufacturing productivity in those countries is a consequence of manufacturing s smaller size

consumption and unemployment this paper examines consumption changes of workers following experiences of unemployment in different stochastic environments the model developed in the paper predicts that consumption changes following unemployment spells should be small for workers the higher are their layoff and recall probabilities these predictions are confirmed in estimates with panel data

optimal life cycle unemployment insurance we argue that us welfare would rise if unemployment insurance were to be increased for young workers and decreased for old this is because young workers have little means to smooth consumption during unemployment and want jobs to accumulate high return human capital so unemployment insurance is highly valuable to them while the induced moral hazard problem is mild we consider a life cycle model with unemployment risk and endogenous search eort that we calibrate to match us labor market institutions we nd that allowing unemployment replacement rates and other government transfers to decline with age yields sizeable welfare gains which amount to around two thirds of the gains attained under the constrained optimal scheme for unemployment insurance over the life cycle

employment constraints and the labor supply of married women a reexamination of the added worker effect little evidence is found to support the conventional notion of the added worker effect the husband s unemployment has no measurable impact on the wife s actual hours of work however the constraint on his ability to supply hours of work to the labor market and not simply his unemployment influences his wife s labor supply furthermore the observed hours of work of the wife may not accurately reflect her desired hours of work with these considerations the wife s labor supply is found to be positively associated with the unemployment and underemployment of her husband and this added worker effect is estimated to be quite substantial

female labor supply as insurance against idiosyncratic risk in this paper we explore the role of female labor supply as an insurance mechanism against idiosyncratic earnings risk within the family we use a life cycle model in which a unitary family makes consumption saving and labor supply decisions additional uncertainty increases female participation rates this effect on participation is greatest when the ability to borrow and hence to smooth consumption is limited we calculate the welfare cost of increases in uncertainty and show that the welfare cost is greater when households are unable to adjust female labor supply jel j22 d91

the wealth of the unemployed many studies have investigated the adequacy of unemployment insurance ui benefits as a form of income replacement but few have looked at other resources with which the unemployed can finance their unemployment spells this paper focuses on one form of resources own wealth holdings the author finds that the median worker s financial assets can cover roughly two thirds of the income loss from an unemployment spell wealth holdings vary tremendously however and almost one third of workers are unable to replace even 10 of their income loss moreover predicted wealth holdings decline precipitously with realized unemployment durations both absolutely and especially relative to actual income loss this finding together with the finding that individuals who are eligible for more generous ui draw down their wealth more slowly than do others during unemployment spells suggests that ui benefit adequacy could be increased if the benefits were targeted to those with longer unemployment spells

a general formula for the optimal level of social insurance in an influential paper baily 1978 showed that the optimal level of unemployment insurance ui in a stylized static model depends on only three parameters risk aversion the consumption smoothing benefit of ui and the elasticity of unemployment durations with respect to the benefit rate this paper examines the key economic assumptions under which these parameters determine the optimal level of social insurance i show that a baily type expression with an adjustment for precautionary saving motives holds in a general class of dynamic models subject to weak regularity conditions for example the simple reduced form formula derived here applies with arbitrary borrowing constraints durable consumption goods private insurance arrangements and search and leisure benefits of unemployment

boom goes the price giant resource discoveries and real exchange rate appreciation we estimate the effect of giant oil and gas discoveries on bilateral real exchange rates the size and plausibly exogenous timing of such discoveries make them ideal for identifying the effects of an anticipated resource boom on prices we find that a giant discovery with the value of a country s gdp increases the real exchange rate by 14 within 10 years following the discovery the appreciation is nearly exclusively driven by an appreciation of the prices of non tradable goods we show that these empirical results are qualitatively and quantitatively in line with a calibrated model with forward looking behaviour and dutch disease dynamics

reassessing cyclical changes in workers labor market status gross flows and the types of workers who determine them this analysis using current population survey data yields statistically compelling evidence that cyclical variations in gross flows of u s workers that is variations by business cycle phase in the number of workers transitioning from one labor market state to another each month were substantially smaller in 1986 2005 than in 1968 86 the authors identify six types of workers who would be expected to contribute to cyclical variations in these flows counter intuitively one such group consists of individuals whose decisions to enter or exit the labor force are independent of labor market conditions estimates suggest that these noncyclical movers are an empirically important component of gross flows into the labor force the authors contend that the presence of noncyclical movers precludes accurate measurement of the contributions of workers whose entry and exit decisions are consciously influenced by labor market conditions

does unemployment insurance crowd out home production abstract in this paper we study the interaction between self insurance and public insurance in particular we provide evidence on a negative correlation between unemployment insurance benefits and home production using the american time use survey atus and the state level unemployment insurance data of the u s the empirical results suggest that moving to a two times more generous state would decrease time spent on home production about 22 for the unemployed then we pursue a quantitative assessment of this empirical finding using a dynamic competitive equilibrium model in which households do home production as well as market production the model is able to generate the empirical facts regarding the unemployment benefits and home production the fact that unemployment insurance benefits crowd out home production is interpreted as a substitution between the two insurance mechanisms against loss of earnings during unemployment spells

delayed collection of unemployment insurance in recessions contrary to assumptions in the unemployment insurance ui literature this paper argues that unemployed workers do not always lose uncollected ui benefits when they start a new job instead they may postpone the collection of leftover benefits to future unemployment spells further using cross time and cross state variations in ui policies the paper finds empirical evidence that allowing unemployed workers to delay the collection of benefits increases their incentives to find a job during recessions when wages are low job separation rates are high and ui benefits are extended i quantify the effects of the policy of allowing delayed collection of benefits on aggregate unemployment by introducing endogenous search effort benefit eligibility and wage indexed benefits into a standard search and matching framework the model demonstrates how the policy increases the future value of employment even though more generous ui benefits in general reduce the net value of employment using a calibrated model i find that allowing delayed benefit collection raises the proportion of unemployed workers receiving benefits and reduces the unemployment rate during 2009 2012

income after job loss the role of the family and the welfare state that displaced workers suffer long lasting earnings losses is a stylized fact raising the question whether these losses are replaced by other means for married men increased labour supply by the wife may be one way another possibility is that the public welfare system offsets the same losses i used a swedish longitudinal data set containing married couples where the husband was either employed or made redundant in 1987 by an establishment closure there was no evidence that husbands job loss positively affected wives annual earnings although husbands utilization of unemployment insurance increased significantly government transfers including also sickness insurance disability insurance and means tested social benefits did not fully replace husbands long run earnings losses hence displaced workers seem to suffer also from long lasting losses in family income which in many respects is a better measure of economic welfare than individual earnings or wages

returns to investment in education a global update the author updates compilations of rate of return estimates to investment in education published since 1985 and discusses methodological issues surrounding those estimates some key patterns among the three main levels of education primary education continues to exhibit the highest social profitability in all world regions private returns are considerably higher than social returns because of the public subsidization of education the degree of public subsidy increases with the level of education which is regressive social and private returns at all levels generally decline by the level of a country s per capita income overall the returns to female education are higher than those to male education but at individual levels of education the pattern is more mixed the returns to the academic secondary school track are higher than the vocational track since unit cost of vocational education is much higher and the returns for those who work in the private competitive sector of the economy are higher than in the public noncompetitive sector and the returns in the self employment unregulated sector of the economy are higher than in the dependent employment sector controversies in the literature are discussed in the light of the new evidence the undisputable and universal positive correlation between education and earnings can be interpreted in many ways the causation issue on whether education really affects earnings can be answered only with experimental data generated by randomly exposing different people to various amounts of education given the fact that moral and pragmatic considerations prevent the generation of such pure data researchers have to make do with indirect inferences or natural experiments some have been attempted the author looks at the research on overeducation or surplus schooling the conclusions reinforce earlier patterns they confirm that primary education continues to be the number one investment priority in developing countries they also show that educating females is marginally more profitable than educating males that the academic secondary school curriculum is a better investment than the technical vocational tract and that the returns to education obey the same rules as investment in conventional capital that is they decline as investment is expanded