Earnings Dynamics and Profile Heterogeneity: Estimates from Japanese Panel Data

The recent empirical work on earnings processes using US panel data finds that ignoring heterogeneity in earnings profiles among individuals leads to an upward bias in the autoregressive parameter of earnings shocks. It then argues that the existing assumptions in incomplete markets and heterogeneous‐agent models, almost all of which require highly persistent earnings shocks and no individual‐specific and group‐specific differences in earnings growth rates, may be inappropriate. This paper investigates the applicability of this US data‐based debate to other developed countries by using a panel of Japanese male earnings. The results indicate that it is possible to corroborate the recent US arguments, despite some differences in the estimates.     

The intergenerational persistence of lifetime earnings

This paper proposes a new method for estimating the intergenerational persistence of lifetime earnings from data that contain only short sections of individual earnings histories. The approach infers lifetime earnings persistence from the persistence of short earnings averages together with information about the stochastic process governing individual earnings. I find that lifetime earnings are substantially more persistent than previous estimates based on short panel data suggest. About 54% of lifetime earnings differences between fathers persist into their sons’ generation. This persistence estimate exceeds previous estimates based on five-year earnings averages by one third. These findings are robust against alternative assumptions about the data generating process for earnings.     

Intergenerational Earnings Inequality: New Evidence From Italy

Using an innovative dataset built by merging survey and administrative data, we provide new estimates of intergenerational earnings’ inequality between fathers and sons in Italy, extending previous evidence in several directions. We rely on the TSTSLS method to predict fathers’ earnings and compute intergenerational elasticities and imputed rank–rank slopes, trying to reduce estimation biases. Confirming previous evidence, we find that Italy is characterized by a high intergenerational inequality in cross-country comparison. Extending previous analyses, we show that the intergenerational association increases when sons at older ages and multi-annual averages of pseudo-fathers’ and sons’ earnings are considered. We also find that the intergenerational persistence differs across geographical macro-areas and is high also for daughters, especially when family earnings are considered. Furthermore, estimates where possible mediating factors of the parental influence are included among the covariates show that a high intergenerational association persists when sons’ education and occupation are controlled for.     

Identifying Earnings Assimilation of Immigrants under Changing Macroeconomic Conditions

Failure to account for differences between immigrants and natives in their responsiveness to changes in macroeconomic conditions may bias estimates of assimilation effects on immigrant earnings. Using Norwegian register data from 1980 to 1996, we first establish that earnings of immigrants from non‐OECD countries exhibit greater sensitivity to local unemployment than do earnings of natives. The empirical analysis further reveals that standard methods of estimation—which fail to consider differential immigrant and native responsiveness—understate earnings growth and overstate cohort differentials among non‐OECD immigrants. These biases are attributable to trends in macroeconomic conditions over the sample period.     

Lifetime Earnings, Discount Rate, Ability and the Demand for Post–compulsory Education in Men in England and Wales

Human capital theory suggests educational investments are made based on expected returns over the lifetime. Most other work in this field, particularly using British data, is based on demand models estimated in reduced form, with no earnings measures, or crudely constructed earnings measures, based on one or two earnings observations per individual.
We present a structural model of demand for educational investment which includes estimates of earnings paths for educational options as determinants of educational choice. This provides us with directly interpretable parameter estimates. The discount rate is also determined within our demand model.
Ability controlled earnings profiles are estimated by matching individuals from the General Household Survey to individuals in similar occupations from the National Child Development Survey (NCDS).
Our results show that expected earnings profiles vary according to observed ability and educational choice. Results from the demand model show that expected lifetime earnings have a significant impact on educational choice.
Other socio–demographic factors, particularly social class, also exhibit significant influences on the education decision. We estimate the discount rate to be lower than reported in other studies.     

The earnings effects of health and health-related activities: a panel data approach

We investigate the effects of health and health-related habits on earnings in China using panel data to control for unobserved heterogeneity related to individual traits and job characteristics. Health-related habits include smoking cigarettes, drinking tea, frequency of drinking alcohol and physical exercising. We find a significant and large impact of health status on earnings, controlling for schooling, experience and the unobserved individual heterogeneity and job heterogeneity. We also find that smoking has a strong negative effect on earnings net of health status, while the estimated effects of other health-related activities are statistically insignificant.     

Does union membership reduce gender earnings differentials? Evidence from employer–employee matched data in China

This paper examines whether union membership reduces gender earnings differentials in the Chinese labour market using an employer–employee matched data set. We have three main findings. First, union membership helps reduce the gender differentials in hourly wage and monthly allowance, but not in monthly basic wage and yearly bonus. Second, ensuring that female workers receive overtime pay is one way by which union membership helps reduce the gender earnings differentials. Third, controlling for firm fixed effects reduces the effect of union membership on the gender gap in hourly wage and monthly allowance, which means that the unobserved firm characteristics might impact the effect of union membership on gender earnings differentials.     

Bayesian Unconditional Quantile Regression: An Analysis of Recent Expansions in Wage Structure and Earnings Inequality in the US 1992–2009

We develop Bayesian inference for an unconditional quantile regression model. Our approach provides better estimates in the upper tail of the wage distribution as well as valid small sample confidence intervals for the Oaxaca–Blinder decomposition. We analyze the recent changes in the US wage structure using data from the CPS Outgoing Rotation Group from 1992 to 2009. We find that the largest part of the recent changes is explained mainly by differences in returns to education while the decline in the unionization rate has a small impact, and that earnings inequality is rising more at the top end of the wage distribution.     

HAS NEW ZEALAND'S EMPLOYMENT CONTRACTS ACT INCREASED EMPLOYMENT AND REDUCED WAGES?*

The Employment Contracts Act 1991 substantively altered the structure of the industrial relations system in New Zealand. This study estimates the effects of this legislation on employment levels and average hourly earnings in this country using disaggregate industry level data from 1986(1) to 1996(2). In the five years following the enactment of the ECA, nonagricultural union membership declined from 49.5 to 27.2 per cent of the work force. This is an important consideration because our regression analysis suggests that this decrease in unionisation is solely responsible for any effects of the ECA on the labour market. Full-time equivalent employment grew by 14.2 per cent between 1991(2) and 1996(2). At least 2.3 percentage points of this employment growth can be attributed to this legislation. If the ECA was partly responsible for the recent economic recovery, then more of this employment growth could be credited to this act. There are two basic reasons why the ECA might have increased employment over the past five years. It could have lowered hourly earnings, or increased effective labour demand. Estimates of a reduced-form wage equation and a structural labour demand function both point to the latter explanation. Since there is no statistical evidence that ECA reduced hourly earnings, falling unionisation must have increased effective labour demand.     

STOCKS AND DEPRECIATION OF HUMAN CAPITAL: NEW EVIDENCE FROM A PRESENT-VALUE PERSPECTIVE

Responding to a perceived growing interest in human wealth estimates, this paper offers a framework for measuring the aggregate stock of human capital and then implements the procedure for the United States male population age 14 to 75. Unlike previous estimates of human wealth that are based upon historical or resource costs, these estimates measure the capital stock as the discounted resent-value of expected lifetime returns. In the estimation, returns are equated with earnings data from the 1970 U.S. Census 15 percent Public Use Sample for out-of-school males, adjusted for employment and survival probabilities, adjusted for an assumed exogenous growth in future earnings, and discounted at 7.5 percent.
We provide cross-sectional estimates of individual stocks of human capital by age and educational attainment, as well as expected lifetime wealth profiles for individuals by level of education. These individual profiles can be used to obtain direct estimates of age-specific depreciation which suggest human capital is subject to significant and prolonged appreciation before nearly straight-line depreciation begins around middle age. This finding is all the more significant since resource-cost estimates of human capital which must assume a depreciation pattern to obtain stocks have always imposed a much faster rate much sooner.
Finally, an aggregate estimate of the stock of human capital for all males is supplied and its sensitivity to the choice of the discount rate, tax laws, and expected exogenous growth is analyzed. This seemingly-conservative stock estimate is then compared to a much lower resource-cost estimate offered recently by John Kendrick. A discount rate over 20 percent would be needed to equate the two measures. In trying to reconcile the two figures, we raise some new questions about the validity of both approaches for human capital accounting.     

Review Essay on Economics for the Common Good

The initial stage of labor market activity for young adults influences their labor market engagement and earnings profiles over their life cycle. I examine earnings inequality among young adults in a dynamic setting. Education, marital status, race are contributors to the observed earnings inequality. Earnings equalization is observed in the long run, and the proportion of earnings inequality attributed to education, marital status, and race is found to be significant.     

Occupational Attainment and Immigrant Economic Progress in Australia*

Using data from the 2001 Australian Census of Population and Housing, on adult men in full‐time employment, this paper augments a conventional human capital earnings function with information on occupations. It also estimates models of occupational attainment. The results from both the earnings function and model of occupational attainment indicate that the limited international transferability of human capital skills results in immigrants entering into relatively low status occupations when they first enter the Australian labour market. Comparison with similar research for the USA suggests that the different immigrant selection regimes (primarily family reunion in the USA, skill‐based immigration in Australia) do not impact on the negative association between current occupational status and pre‐immigration labour market experience.     

ON‐THE‐JOB SEARCH,PRODUCTIVITY SHOCKS,AND THE INDIVIDUAL EARNINGS PROCESS*

Individual labor earnings observed in worker panel data have complex, highly persistent dynamics. We investigate the capacity of a structural job search model with on‐the‐job search, wage renegotiation by mutual consent, and i.i.d. productivity shocks to replicate salient properties of these dynamics, such as the covariance structure of earnings, the evolution of individual earnings mean, and variance with the duration of uninterrupted employment, or the distribution of year‐to‐year earnings changes. Structural estimation of our model on a 12‐year panel of highly educated British workers shows that our simple framework produces a dynamic earnings structure that is remarkably consistent with the data.     

Trade union membership and earnings in Kenyan manufacturing firms

This study analyses the effect of trade unions on male earnings in the Kenyan manufacturing sector using a regression method, which takes into account endogeneity of the union status of workers. In contrast to earlier studies of the Kenyan labour market that report a negative effect of unions on wages, a positive effect is found. The study further shows that elite workers tend to abstain from union membership.     

That elusive elasticity and the ubiquitous bias: Is panel data a panacea?

There is often assumed to be a unit elasticity of substitution between capital and labour. But estimates based on neoclassical capital demand equations frequently find a smaller value. Recent time-series work for the United States and Canada has suggested that, once the biases inherent in estimating cointegrating vectors are properly accounted for, the elasticity could indeed be close to 1. We investigate this possibility for the United Kingdom. First we use aggregate data and find that the estimated elasticity is in the neighbourhood of 0.4. We then exploit a unique industry-level dataset for the United Kingdom to try and further pinpoint our estimates. Estimates using dynamic panel data methods are close to our benchmark estimate using aggregate data, providing a robust statistical rejection of a unit elasticity in UK data.     

Chronic and transient poverty: Measurement and estimation, with evidence from China

The paper contributes to the measurement of poverty and vulnerability in three ways. First, it proposes a new approach to separating poverty into chronic and transient components. Second, it provides corrections for the statistical biases introduced when using a small number of periods to estimate the importance of vulnerability and transient poverty. Third, it applies these tools to the measurement of chronic and transient poverty in China using a rich panel data set that extends over 17 years. Alternative measurement techniques are found to yield significantly different estimates of the relative importance of chronic and transient poverty. The precision of the estimates is also considerably enhanced by simple statistical corrections.     

Empirical earnings functions for Iran

Some recent studies have debated the appropriateness of semi-log earnings function in approximating actual earnings profiles. This study contributes further to this debate by estimating four specifications of earnings function, namely, semi-log quadratic, semi-log cubic, quadratic and cubic with cross section data for 4035 full-time urban male earners in Iran for 1993. The analysis shows that the semi-log quadratic earnings function fits the actual empirical earnings profiles very poorly. The quadratic earnings function provides a much better approximation to the actual earnings. Measures of out-of-sample prediction errors also show the superiority of quadratic function over others.     

Long-run matching relationship in the Japanese labor market

This paper investigates the long-run relationship among new hiring, unemployment (job seekers), and unfilled vacancies in Japan, using an annual panel data on 47 prefectures for 1972-1999. We find that these three variables are I(1) processes, and are cointegrated in our panel data. Further, we estimate the panel cointegration equation derived from a Cobb-Douglas matching function by the heterogeneous fully modified OLS and heterogeneous dynamic OLS. The estimation results reveal that conventional within estimates could have non-negligible biases.First version received: November 2002/Final version received: October 2003All correspondence to Shigeki Kano. The authors are grateful to the associate editor and two anonymous referees of this journal for helpful comments. Doctor Stephen J. Turnbull (University of Tsukuba) is also acknowledged for correcting English errors in this paper. Remaining errors are due to the authors. The data set and GAUSS programming code used in this paperare available upon request.     

Immigrant job search assimilation in Canada

Immigrant assimilation is a major issue in many countries. While most of the literature studies assimilation through a human capital framework, we examine the role of job search assimilation. To do so, we estimate an equilibrium search model of immigrants operating in the same labour market as natives, where newly arrived immigrants have lower job offer arrival rates than natives but can acquire the same arrival rates according to a stochastic process. Using Canadian panel data, we find substantial differences in job offer arrival and destruction rates between natives and immigrants that are able to account for three quarters of the observed earnings gap. The estimates imply that immigrants take on average 13 years to acquire the native search parameters. Due to immigrants facing much lower on‐the‐job offer arrival rates than natives, the model predicts that earnings growth through job search is minimal for immigrants prior to their job search assimilation.     

Rent-sharing and collective wage contracts–evidence from German establishment-level data

Using German establishment-level data, this article analyses whether wages respond to firm-specific profitability conditions. Particular emphasis is given to the question of whether the extent of rent-sharing varies with collective bargaining coverage. In this context, two conflicting hypotheses are tested. The first one asserts that unions exploit their bargaining power at the firm level and appropriate a larger share of rents than the bargaining parties in uncovered firms. The second one states that unions favour a compressed intra-industry wage structure and suppress the responsiveness of wages to firm-specific profitability conditions. The empirical analysis provides strong support for the second hypothesis. While Pooled Ordinary Least Squares (POLS) estimates yield positive estimates of the rent-sharing coefficient in covered establishments, dynamic panel data estimates accounting for unobserved heterogeneity and the endogeneity of rents point to a rent-sharing coefficient of zero.