Computer adoption and returns in transition

Across nine transition economies, it is the young, educated, English‐speaking workers with the best access to local telecommunications infrastructures who work with computers. These workers earn about 25 percent more than do workers of comparable observable skills who do not use computers. Controlling for likely simultaneity between computer use at work and labour market earnings makes the apparent returns to computer use disappear. These results are corroborated using Russian longitudinal data on earnings and computer use on the job. High costs of computer use in transition economies suppress wages that firms can pay to their workers who use computers.     

Self-Employment and Wage Earning in Hungary

This paper examines the earnings determinants of the self‐employed and wage earners in Hungary in the mid‐1990s, taking into account two forms of selection: selection into working or non‐working for every individual in its sample and selection into self‐employment or wage‐earning jobs for workers only. Previous studies use switching regression to examine the returns to individual characteristics, taking into account only selection into self‐employment or wage‐earning jobs. The authors find that the estimated returns to individual characteristics when accounting for both forms of selection, differ from estimates correcting for only selection into self‐employment or wage‐earning jobs. They also find that the earnings determinants of the two sectors are not significantly different from each other.     

Levels of computer self-efficacy, computer use and earnings in China

Levels of self-efficacy in computer use were found to be positively related to computer use at work among a sample of workers in Shanghai. The simultaneous estimation of computer use and earnings indicated that an earnings premium for computer use accrues only to females, not to males.     

The effects of home access to technology on computer skills: Evidence from a field experiment

Computer skills are important for educational and labor market success. This paper examines whether disparities in access to home computers are limiting the acquisition of computer skills. To address problems with selection bias, I use data from a randomized field experiment providing free computers for home use to community college students. I find that the treatment group of low-income students receiving free computers has significantly higher levels of computer skills than the control group of low-income students not receiving free computers. The “intent-to-treat” estimates indicate an increase in high-level computer skills of 17% points, and the LATE estimates indicate a range of 19–23% points. The results are robust to estimation strategy, measurement of the dependent variable, and inclusion of different sets of controls. The benefits appear to be the strongest among young, minority, low-income, and female students.     

Intermittent work activity and earnings

Patterns of intermittent work activity appear to be more common in the modern labour market, at least for younger workers. This study extends earlier models of the relationship between labour market intermittency and earnings to include both part time work and nonparticipation, to differentiate between past work experience and current job tenure, to allow for nonlinear experience effects, and to account for selection bias arising from the exclusion of nonworkers. The results suggest that the effects of part time work and nonparticipation on earnings are similar. Moreover, some common patterns emerge: the effects are larger for women, greater for young workers, and greater when intermittency replaces current job tenure.     

Language training,language proficiency and earnings of immigrants in Norway

This paper uses a simple probit model to determine the impact of language training on the language proficiency of Third World immigrant men in Norway. It also estimates the labour market returns to Norwegian language proficiency. The results show that immigrants who participate in language training programme are more likely to acquire speaking and reading proficiencies in Norwegian language than those who do not. Contrary to expectation, language proficiency has no significant effect on immigrants' earnings. A probable explanation may be that immigrants need Norwegian language proficiency to get into jobs in the Norwegian labour market. Once they are in employment, their wages are not necessarily determined by their proficiency in Norwegian. Consistent with the assimilation hypothesis, earlier waves of immigrants have higher earnings than do more recent waves, and part of the initial earnings deficit experienced by more recent immigrants can be attributed to language deficiency. There was no evidence of sample selection bias in the earnings equation.     

LONG‐RUN INEQUALITY AND SHORT‐RUN INSTABILITY OF MEN'S AND WOMEN'S EARNINGS IN CANADA

This paper examines the variability of workers’ earnings in Canada over the period 1982–2006. We decompose the total variance of workers’ earnings into a ‘permanent’ component between workers and a ‘transitory’ earnings instability component over time for given workers. We then investigate the statistical relationships between these components and indicators for the business cycle. The most marked change in earnings variances in Canada since 1982 is the general rise in total earnings variance, which is essentially driven by a quite dramatic rise in long‐run earnings inequality. The patterns across age categories of the two variance components are almost opposite. Long‐run earnings inequality generally rises with age, but earnings instability is seen to generally decline with age, so that earnings instability is markedly highest among entry age workers. Unemployment rate effects are positive on almost all variance measures, while higher unemployment is associated with widened long‐run earnings differentials and greater short‐run earnings instability.     

Schooling,fertility and the labour market experience of married women

This paper discusses the role of formal schooling and child rearing in the determination of career path choice of women in the US. Data were collected from the adult educational component of the 1991 US National Household Education Survey. Data are available for about 12,568 respondents, of whom 6860 are female. It is established that, amongst others, expected earnings significantly affect the career path and the hours of work chosen by American women. Based on the results of the study, a number of conclusions have been drawn: 1) expectations of earnings affect women's choice of career path, including decisions such as labor market participation, the part-time work versus full-time work decision, and occupational choice; 2) the indirect and indirect effects of schooling and other variables on regime choice has been studied; the impact of schooling and fertility on women's labor supply follows an intuitively plausible pattern; 3) evidence provided here on the private rate of return to education confirms the findings of Bland that part-time workers do not receive a lower return than others; and 4) the importance of correcting for endogeneity and sample selection biases in the problem of earnings determination and career choice has been established.     

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.     

Four decades of Asian American women's earnings: Japanese, Chinese, and Filipino American women's earnings 1960–1990

This article examines the earnings progress of Asian American women from 1960 through 1990 by comparing their actual hourly wage and salary earnings to simulated earnings. The simulated earnings are obtained by using parameter estimates obtained from human capital models of white women corrected for sample selection bias. Data come from the decennial census Public Use Micro Samples data. American-born Asian American women appear to have made dramatic gains in the 1970s. The 1980s and 1990s show some fluctuations in actual earings relative to simulated earnings between Asian American and white women. These fluctuations may be due to problems measuring experience as opposed to differences in discrimination over time.     

Computer knowledge and earnings: evidence for Australia

This paper uses data on wage and salary workers in Australia in 1993 to examine the relation between computer knowledge and earnings. A unique feature of the data set that is used is detailed information on the types and levels of computer skills possessed by individual workers. The main objectives of the study are to contribute to understanding the magnitude and sources of the relation between computer knowledge and earnings. Similar to existing research it is found that there is a large and significant return to computer knowledge, but that the magnitude of the return is substantially reduced in regressions that include detailed occupation controls. Using the detailed information on workers’ computer skills the main finding is that earnings are significantly positively related to the number of types of skills and average level of skills possessed by a worker.     

Intergenerational Earnings Mobility Revisited: Estimates Based on Lifetime Earnings*

Using Norwegian intergenerational data, which include a substantial part of the life‐cycle earnings for children and almost the entire life‐cycle earnings for their fathers, we present new estimates of intergenerational mobility. Extending the length of fathers’ earnings window from 5 to 25 years increases estimated elasticities. Increasing the age at which fathers’ earnings are observed has the opposite effect. Biases in the estimated elasticities are related to both transitory earnings variation and life‐cycle measurement error; the former appear to be more important than the latter. Estimation bias stemming from persistence in transitory innovations plays only a minor role. Our findings indicate that intergenerational earnings mobility in Norway might have been strongly overstated in many earlier studies with shorter earnings histories. Some of our new estimates are twice as large as earlier estimates.     

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.     

Changing wage structure and education in Vietnam, 1992–98

This paper examines the changes in relative earnings of workers with different education levels in Vietnam. Using a simple demand‐and‐supply framework developed by Katz and Murphy (1992 ), it was found that an increase in the relative demand for better‐educated male workers in particular appears to play an important role in explaining the earnings differentials between workers of different education groups. Education reform to better suit the needs of the post‐reform emerging market, on‐the‐job training for workers and equal access to education are some policy options that hold the key to reducing wage inequality between different education groups.     

The impact of production offshoring on the skill composition of manufacturing firms: evidence from Italy

In this work we explore how the international outsourcing of production impacts the skill composition of employment within Italian manufacturing firms. In particular, our aim is to assess whether the choice to offshore production activities to cheap‐labour countries implies a bias in the employment of skilled workers relative to unskilled ones.

Using a balanced panel of firms covering the period 1995–2003, we set up a counterfactual analysis in which, by using a difference‐in‐differences propensity score matching estimator, we compare the dynamics of skill demand for treated and control firms while addressing the possible problem of selection bias.

Our results identify a ‘potential’ skill bias effect of production offshoring. In particular, we find that treated firms tend to show an upward shift in the skill ratio with respect to the counterfactual sample, but coefficients are not significantly different from zero. When we look at the elements of the skill ratio separately, we find that the skill bias is driven by a fall in the employment of production workers (blue collars), rather than by the increase in the employment of non‐production workers (white collars), thus providing further evidence on the unskilled labour‐saving nature of international outsourcing.     

Assessing the Possible Antipoverty Effects of Recent Rises in Age‐Specific Minimum Wages in New Zealand

Real minimum wages increased by nearly 33 percent for adults and 123 percent for teenagers in New Zealand between 1999 and 2008. Where fewer than 2 percent of workers were being paid a minimum wage at the outset of this sample period, more than 8 percent of adult workers and 60 percent of teenage workers were receiving hourly earnings close to the minimum wage by the end of this period. These policy changes provide a unique opportunity to estimate the effects of the minimum wage on poverty. Although minimum wage workers are more likely to live in the poorest households, they are relatively widely dispersed throughout the income distribution. This is particularly true of teenage minimum wage workers. Furthermore, low‐income households often do not contain any working members. We estimate that a 10 percent increase in minimum wages, even without a loss in employment or hours of work, would lower the relative poverty rate by less than one‐tenth of a percentage point.     

Earnings Instability and Tenure

We study the effect of tenure on earnings instability in Italy using the reforms of temporary employment contracts, which affected the average tenure of workers differentially across cohorts. We develop a model of earnings dynamics, and we exploit the variation of tenure and instability over time and across birth cohorts to estimate policy‐relevant parameters. Our results indicate that each year of tenure on the job reduces earnings instability by 11 percent; the drop is faster in the first three years of the match. Workers on a temporary contract have an earnings instability up to 100 percent higher than workers on a permanent contract.     

Earnings distribution of Cuban immigrants in the USA: evidence from quantile regression with sample selection

This article analyses the conditional earnings distribution for Cuban immigrants in the USA considering Buchinsky sample selection in a quantile regression model. The test proposed by Huber and Melly to test the independence between error terms and regressors (conditional on the selection probability) is also considered. This is the first attempt in the migration literature to use quantile regression with sample selection. The data used come from the US American Community Survey. The results show that the hypothesis of conditional independence is not rejected, and increments in earnings associated with the usual socioeconomic characteristics in labour studies vary between the cohorts considered. The main conclusions are that a decline in returns from education may be a sign that a high level of education no longer provides a competitive advantage and that being a black person is associated with substantially lower earnings regardless of the individuals’ position in the earnings distribution. This may explain why, historically, comparatively fewer black Cubans have made the decision to emigrate to the USA because of a lack of economic incentives.     

The effect of computer use on earnings in Italy

This paper studies the effect of computer use on earnings among a cohort of recent Italian high school graduates. The IV and Heckman techniques are used in order to control for endogeneity of computer use. Results show that the wage premium associated with computer use disappears once selection into computer use is accounted for. On the other hand, using the computer to perform a number of specific tasks leads to higher earnings. It is therefore suggested that not all individuals who use a computer at work receive a wage premium, but only those possessing complementary computer skills such as communication, networking and problem solving abilities.      

The impact of job mobility on earnings growth of migrant workers in urban China

Using survey data on migrant workers in urban China, this paper carries out a positive study on the impact of inner-industrial and inter-industrial job shifts on earnings growth of migrant workers. Results show that low human capital, low employment grades and low income are the most important reasons for migrant workers to switch jobs. The migrant workers who are young, unmarried new entrants with low level of education, no training and low income tend to change their jobs within the industry. And those who have high income and who find their jobs by themselves are more likely to switch jobs inter-industrially. Inner-industrial job switches have a significant positive impact on earnings growth of low-income migrant workers and a significant negative one on that of high-income migrant workers. Moreover, inter-industrial shifts have a significant negative impact on earnings growth of migrant workers of all income levels. The inner cause for the positive effect of inner-industrial shifts lie in the fact that the cumulative effect of years of service within enterprises is not obvious while continuing engagement in the same type of job within an industry will lead to accumulation of qualifications, which has a significant augmentation effect on earnings of migrant workers.