Testing the intertemporal labor supply model: are jobs important?

The neoclassical life-cycle labor supply model assumes that hours of work are determined by labor supply choices alone and does not include a role for employers or job distinctions. An alternative model in which employers have an interest in employee hours and changing jobs is costly may reconcile weak and conflicting evidence regarding the neoclassical model. An important implication of such an alternative is that individuals may face hours constraints on a job and thus can choose hours freely only between jobs. This paper tests several implications of the neoclassical model against this alternative model of hours determination. Using a unique panel of individuals and jobs constructed using data on women from the 1988–1992 Panel Study of Income Dynamics, I compare hours variances and labor supply elasticities measured within and between jobs. Results provide some evidence against the neoclassical model and suggest that ignoring the role of employers in determining hours of work can lead to downward bias in estimates of labor supply elasticities.     

The cross‐Euler equation approach to intertemporal substitution in import demand

This paper addresses the empirical dilemma in identifying and estimating the parameters governing the intertemporal elasticity of substitution (IES) for import demand. We propose a new concept, the cross‐Euler equation, for overcoming this empirical dilemma. IES parameters are estimated by exploiting the cointegrating restriction implied by the cross‐Euler equation. Further, by comparing the IES estimates from the cross‐Euler equation to those from the standard Euler equation, we test the hypothesis whether import demand is affected by nuisance factors. Using the US data, we found imported goods consumption to be robust against nuisance factors, but not for domestic goods. Copyright © 2005 John Wiley & Sons, Ltd.     

The business cycle human capital accumulation nexus and its effect on hours worked volatility

This paper studies hours worked volatility and the cyclicality of human capital investments by embedding a Ben-Porath life-cycle model of human capital accumulation into an RBC setting. Agents differ across two dimensions: age and productivity in learning. Our results show that individuals invest more in human capital during economic downturns. However, human capital accumulation is more counter-cyclical for young and low-productivity individuals because they face a lower opportunity cost of education and a higher marginal product of human capital. These results are confirmed empirically using US data from the Current Population Survey and the American Time Use Survey. In addition, the paper contributes to the RBC literature by showing that the model׳s business cycle properties, in particular hours worked volatility, are sensitive to assumptions of heterogeneity. Introducing heterogeneity in productivity increases the volatility of aggregate hours worked and changes the life-cycle profile for hours volatility to better match the data.     

Wages,non-wage characteristics,and predominantly male jobs

This paper estimates the wage premium associated with working in predominantly male jobs. It also examines whether this wage premium is greater than the compensation workers demand for the less desirable non-wage characteristics of such jobs. The coefficients of the change in the proportion of men in an occupation on the change in wages for quits and layoffs provide opposing biased estimates of the wage premium; because workers who voluntarily quit move to better matches, but those that are laid off accept jobs from the representative distribution of job offers. Specifically, when the premium paid over- (under-)compensates for undesirable work characteristics, the quit estimate is a downward (upward) biased estimate of the wage premium, while the layoff estimate is biased upward (downward). Results from the U.S. National Longitudinal Survey of Youth (NLSY) and the U.S. Panel Study of Income Dynamics (PSID) indicate that: (1) the estimated bounds of the wage premium are large; and (2) the wage premium overcompensates for the non-wage characteristics of male jobs.     

人口老龄化对劳动供给和人力资本投资时间的影响

参照贝克尔的时间分配理论和海克曼的生命周期理论,运用动态世代交叠均衡模型,研究人口老龄化对劳动供给和人力资本投资时间分配的影响,并进一步考察人口老龄化对生产能力的间接影响。结果显示：在短期内,人口老龄化会导致人力资本投资时间的增加和劳动供给的减少,进而引发社会生产能力的下降,增加了人口老龄化的经济成本;在长期内,人口老龄化使得年轻人能够为社会提供更多的熟练劳动力,进而提高了社会劳动生产率,降低了人口老龄化的经济成本。     

Certified and uncertified skills and productivity growth performance: Cross-country evidence at industry level

We analyse the relationship between human capital and productivity growth using a five-country multi-industry dataset together with a measure of human capital which accounts for both certified skills (educational qualifications) and uncertified skills acquired through on-the-job training and experience. We find evidence of positive human capital effects on growth in average labour productivity, particularly when using our composite human capital measure. We also find some tentative evidence that multi-factor productivity (MFP) growth is positively related to the use of high-skilled labour. However, externalities of this kind are largely confined to industries which make intensive use of university graduates.     

Empirical evidence on occupation and industry specific human capital

This paper presents instrumental variables estimates of the effects of firm tenure, occupation specific work experience, industry specific work experience, and general work experience on wages using data from the 1979 Cohort of the National Longitudinal Survey of Youth. The estimates indicate that both occupation and industry specific human capital are key determinants of wages, and the importance of various types of human capital varies widely across one-digit occupations. Human capital is primarily occupation specific in occupations such as craftsmen, where workers realize a 14% increase in wages after five years of occupation specific experience but do not realize wage gains from industry specific experience. In contrast, human capital is primarily industry specific in other occupations such as managerial employment where workers realize a 23% wage increase after five years of industry specific work experience. In other occupations, such as professional employment, both occupation and industry specific human capital are key determinants of wages.     

Capital-land substitution in urban housing: A survey of empirical estimates

Recent empirical studies of capital-land substitution in urban housing are examined to determine the best estimate of the elasticity of substitution parameter σ. Studies based upon a cross section of metropolitan areas produce a rather narrow range for σ. Studies of individual metropolitan areas produce a wide range of estimates for σ, suggesting that a may vary across metropolitan areas. However, all estimates of σ are probably biased toward zero by errors in the measurement of land values.     

The psychological role of pay systems in choosing to work more hours

Psychological and economic perspectives are blended to model aspects of pay systems that dispose employees to work more hours beyond what would be predicted by economically rational exchange alone. Three pay-system triggers and their respective paths to more work are expounded: 1) pay equated to units of time, 2) pay contingent on subjective performance standards, and 3) pay growth determined by tournament pay structures. The effects are conceived as self-reinforcing due to loss aversion stemming from endowment of income and sunk cost bias. Also considered are implications for human capital, a posed curvilinear relationship that holds practical relevance for organizational sustainability—i.e., maintenance of the firm's human capital over the long term.     

The slowdown in American educational attainment

Relative to those for high school graduates, lifetime earnings for college graduates are higher for more recent cohorts. At the same time, across successive cohorts born after 1950, there is a stagnation in the fraction of high school graduates that go on to complete a college degree. What explains this phenomenon? I formulate a life-cycle model of human capital accumulation in college and on the job, where successive cohorts decide whether or not to acquire a college degree as well as the quality of their college education. Cohorts differ by the sequence of rental price per unit of human capital they face and by the distribution of initial human capital across individuals. My model reproduces the observed pattern in college attainment for the 1920–1970 birth cohorts. The stagnation in college attainment is due to the decrease in the growth rate of the rental price per unit of human capital commencing in the 1970s. My model also generates about 80% of the increase in lifetime earnings for college graduates relative to those for high school graduates observed across cohorts.     

Testing labour supply and hours constraints

This paper provides empirical evidence that, at a given wage, individuals cannot freely choose the number of hours they work. The novelty relative to the existing literature (e.g. [Altonji, J., Paxson, C., 1986. Job characteristics and hours of work. In: Ehrenberg, R. (Ed.), Research in Labor Economics, vol. 8. Westview Press, Greenwich, 1–55]) is twofold. We use the US data on prime age males from the National Longitudinal Survey of Youth and we account for endogenous switching between jobs. Our results are: (i) the variance of the change in hours worked is more than six times higher for movers than for stayers; (ii) the intertemporal labour supply elasticity is positive and significant for movers and zero for stayers. This is further evidence for the presence of hours constraints. One important implication is that estimates of the labour supply elasticity that ignore these constraints are biased.     

Ethnic capital and intergenerational transmission of educational attainment

This paper studies the role of ethnicity in the intergenerational transmission of educational attainment within the framework outlined by Borjas (Quarterly Journal of Economics, 1992, 107(1), 123–150). Relying on heteroskedasticity to identify parameters in the presence of endogenous regressors, I find evidence that the ordinary least squares estimates of the effect of ethnic capital on intergenerational transmission of education are biased upwards due to the transfer of unobserved ability. I also find that, while the role of parental capital has declined over time, ethnic capital has a relatively constant effect on intergenerational transmission of educational attainment.     

Production with land and nonland factors: Which functional form?

Recent literature has investigated alternative CES and VES specifications for the production of building services with land and nonland inputs. The evidence presented here is consistent with a wide range of functional forms; the Cobb-Douglas form cannot be rejected but neither is it strongly supported. These findings are not inconsistent with previous estimates which are likely to be biased by errors-in-variables. Furthermore, the results reported here parallel findings from the literature on the substitution of labor for capital. Since data are not as readily available as in the labor-capital context, one must be pessimistic about the prospects for definitive empirical work.     

How good are two-point estimates of urban density gradients and central densities?

Some researchers have estimated urban density gradients and central densities using only information on the population and area of the inner city and the outer ring of suburbs. The statistical properties of these two-point estimates have not been previously analyzed. This paper shows the difficulties in providing a definitive analysis of these properties and provides, as an alternative, some Monte Carlo experiments. It appears that the two-point density gradients are mildly biased downward (toward zero), while the bias on the central density depends on the underlying error structure. Two-point estimates are compared with OLS and nonlinear least-squares estimates. Some results for actual cities are also provided.     

Employee involvement,the quality of training and the learning environment: an individual level analysis

Theories such as human capital theory, the metaphors of learning and the high involvement work paradigm all suggest that the quality of training and learning varies along a number of axes. This article shows how these theoretical insights have been translated into questions used in a UK survey of 6829 employees carried out in 2006. We find that the qualities of both the training experience and on-the-job learning are strongly associated with the extent and nature of employee involvement. This suggests that employee involvement is likely to play an important role in the process of upskilling the workforce, which has been accorded a central role in the economic strategies of many nation states as well as supra-national organizations such as the European Union.     

Business cycles and wage rigidity

In this paper, we analyze the impact of downward wage rigidity on the labor market dynamics. We shows that imposing downward wage rigidity in a matching model with cyclical fluctuations in productivity, endogenous match-destruction, and on-the-job search, quits are procyclical and layoffs countercyclical. Using the European Community Household Panel (ECHP), we provide evidence that downward wage rigidity is empirically relevant in ten European countries. Finally, we show that layoffs are countercyclical and quits are procyclical, as predicted by the model.     

Education,lifetime labor supply,and longevity improvements

This paper presents an analysis of the differential role of mortality for the optimal schooling and retirement age when the accumulation of human capital follows the so-called “Ben–Porath mechanism”. We set up a life-cycle model of consumption and labor supply at the extensive margin that allows for endogenous human capital formation. This paper makes two important contributions. First, we provide the conditions under which a decrease in mortality leads to a longer education period and an earlier retirement age. Second, those conditions are decomposed into a Ben–Porath mechanism and a lifetime-human wealth effect vs. the years-to-consume effect. Finally, using US and Swedish data for cohorts born between 1890 and 2000, we show that our model can match the empirical evidence.     

A finite sample correction for the variance of linear efficient two-step GMM estimators

Monte Carlo studies have shown that estimated asymptotic standard errors of the efficient two-step generalized method of moments (GMM) estimator can be severely downward biased in small samples. The weight matrix used in the calculation of the efficient two-step GMM estimator is based on initial consistent parameter estimates. In this paper it is shown that the extra variation due to the presence of these estimated parameters in the weight matrix accounts for much of the difference between the finite sample and the usual asymptotic variance of the two-step GMM estimator, when the moment conditions used are linear in the parameters. This difference can be estimated, resulting in a finite sample corrected estimate of the variance. In a Monte Carlo study of a panel data model it is shown that the corrected variance estimate approximates the finite sample variance well, leading to more accurate inference.     

Exploring a Regional Technical Efficiency Frontier in the Former USSR

Using 1971–90 panel data from a Siberian province, two econometric methods are used side by side to examine technical inefficiency with a suggestion as to how the methods might be used in sequence. Estimates derived from a random effects method reveal that technical inefficiency is both substantial and not time invariant. Results using either a random or fixed effects method suggest that existing estimates of technical inefficiency in centrally planned economies may be biased downward because of the choice of the estimation method. Using either method, the increasing technical inefficiency found is likely to be one cause of the decline in the performance of centrally planned economies and their regions.     

Economic development and the return to human capital: a smooth coefficient semiparametric approach

This paper investigates the impact of human capital on the process of economic growth by allowing the contribution of traditional inputs (capital and labour) as well as that of human capital to vary both across countries and time. The former is accomplished by constructing an index of TFP growth for traditional inputs, while the latter through semiparametric methods. We derive estimates of the output elasticity and social return to human capital for 51 countries at various stages of economic development. Copyright © 2005 John Wiley & Sons, Ltd.