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Major League Baseball umpires express their racial/ethnic preferences when they evaluate pitchers. Strikes are called less often if the umpire and pitcher do not match race/ethnicity, but mainly where there is little scrutiny of umpires. Pitchers understand the incentives and throw pitches that allow umpires less subjective judgment (e.g., fastballs over home plate) when they anticipate bias. These direct and indirect effects bias performance measures of minorities downward. The results suggest how discrimination alters discriminated groups' behavior generally. They imply that biases in measured productivity must be accounted for in generating measures of wage discrimination.

We analyze gender wage gaps correcting for sample selection induced by nonemployment. We recover wages for the nonemployed using alternative imputation techniques, simply requiring assumptions on the position of imputed wages with respect to the median. We obtain higher median wage gaps on imputed rather than actual wage distributions for several OECD countries. However, this difference is small in the United States, the United Kingdom, and most central and northern EU countries and becomes sizable in southern EU countries, where gender employment gaps are high. Selection correction explains nearly half of the observed negative correlation between wage and employment gaps.

This research proposes and tests a new theoretical mechanism to account for a portion of the motherhood penalty in wages and related labor market outcomes. At least a portion of this penalty is attributable to discrimination based on the assumption that mothers are less competent and committed than other types of workers. But what happens when mothers definitively prove their competence and commitment? In this study, we examine whether mothers face discrimination in labor-market-type evaluations even when they provide indisputable evidence that they are competent and committed to paid work. We test the hypothesis that evaluators discriminate against highly successful mothers by viewing them as less warm, less likable, and more interpersonally hostile than otherwise similar workers who are not mothers. The results support this \"normative discrimination\" hypothesis for female but not male evaluators. The findings have important implications for understanding the nature and persistence of discrimination toward mothers.

\"Occupations are central to the stratification systems of industrial countries, but they have played little role in empirical attempts to explain the well-documented increase in wage inequality that occurred in the United States in the 1980s and 1990s. We address this deficiency by assessing occupation-level effects on wage inequality using data from the Current Population Survey for 1983 through 2008. We model the mean and variance of wages for each occupation, controlling for education and demographic factors at the individual level to test three competing explanations for the increase in wage inequality: (1) the growth of between-occupation polarization, (2) changes in education and labor force composition, and (3) residual inequality unaccounted for by occupations and demographic characteristics. After correcting for a problem with imputed data that biased Kim and Sakamoto's (2008) results, we find that between-occupation changes explain 66 percent of the increase in wage inequality from 1992 to 2008, although 23 percent of this is due to the switch to the 2000 occupation codes in 2003. Sensitivity analysis reveals that 18 percent of the increase in inequality from 1983 to 2002 is due to changes in just three occupations: managers 'not elsewhere classified,' secretaries, and computer systems analysts.\" Die Untersuchung enthält quantitative Daten. Forschungsmethode: empirisch-quantitativ; empirisch; Sekundäranalyse. Die Untersuchung bezieht sich auf den Zeitraum 1983 bis 2008. (Autorenreferat, IAB-Doku).

Taller workers receive a wage premium. Net of differences in family background, the disparity is similar in magnitude to the race and gender gaps. We exploit variation in an individual’s height over time to explore how height affects wages. Controlling for teen height essentially eliminates the effect of adult height on wages for white men. The teen height premium is not explained by differences in resources or endowments. The teen height premium is partially mediated through participation in high school sports and clubs. We estimate the monetary benefits of a medical treatment for children that increases height.

We show that the reported tendency for performance pay to be associated with greater wage inequality at the top of the earnings distribution applies only to white workers. This results in the white-black wage differential among those in performance pay jobs growing over the earnings distribution even as the same differential shrinks over the distribution for those not in performance pay jobs. We show that this remains true even when examining suitable counterfactuals that hold observables constant between whites and blacks. We explore reasons behind our finding focusing on the interactions between discrimination, unmeasured ability, and selection.

This paper opens the black box of the motherhood wage gap by directly measuring discrimination in Switzerland based on two complementary methods. We first use two longitudinal population surveys to establish the size of the wage residual for motherhood. We then run a factorial survey experiment among HR managers (N=714) whom we asked to assign a starting wage to the resumes of fictitious job candidates. The population surveys show an unexplained wage penalty per child of 4% to 8%. The factorial survey experiment shows that recruiters assign wages to mothers that are 2% to 3% below those of nonmothers. The wage penalty is larger for younger mothers, 6% for ages 40 and less, but disappears for older mothers or mothers in a blue-collar occupation. The motherhood wage gap found in panel studies cannot be reduced to unobserved dimensions of work productivity. The experimental evidence shows that recruiters discriminate against mothers.

There are several theoretical reasons why globalization will have a narrowing as well as a widening effect on the gender wage gap, but little is known about the actual impact, except for some country studies. This study contributes to the literature in three respects. First, it is a large cross-country study of the impact of globalization on the gender wage gap. Second, it employs the rarely used ILO October Inquiry database, which is the most far-ranging survey of wages around the world. Third, it focuses on the within-occupation gender wage gap, an alternative to the commonly used raw and residual wage gaps as a measure of the gender wage gap. This study finds that the occupational gender wage gap tends to decrease with increasing economic development, at least in richer countries, and to decrease with trade and foreign direct investment (FDI) in richer countries, but finds little evidence that trade and FDI also reduce the occupational gender wage gap in poorer countries.

Purpose The purpose of this paper is to analyse the relation between occupational segregation and the gender wage differences using data on three-digit occupational level of classification. The authors examine whether a statistically significant relation between the share of men in employment and the size of the unexplained part of the gender wage gap exists. Design/methodology/approach Traditional Oaxaca (1973) – Blinder (1973) decomposition is performed to examine the differences in the gender wage gaps among minor occupational groups. Two types of reweighted decomposition – based on the parametric estimate of the propensity score and non-parametric proposition presented by Barsky et al. (2002) – are used as the robustness check. The analysis is based on individual data available from Poland. Findings The results indicate no strong relation between occupational segregation and the size of unexplained differences in wages. The unexplained wage differences are the smallest in strongly female-dominated and mixed occupations; the highest are observed in male-dominated occupations. However, they are probably to a large extent the result of other, difficult to include in the econometric model, factors rather than the effects of wage discrimination: differences in the psychophysical conditions of men and women, cultural background, tradition or habits. The failure to take them into account may result in over-interpreting the unexplained parts as gender discrimination. Research limitations/implications The highest accuracy of the estimated gender wage gap is obtained for the occupational groups with a similar proportion of men and women in employment. In other male- or female-dominated groups, the size of the estimated gender wage gaps depends on the estimation method used. Practical implications The results suggest that decreasing the degree of segregation of men and women in different occupations could reduce the wage differences between them, as the wage discrimination in gender balanced occupations is the smallest. Originality/value To the best of the authors’ knowledge, this study is one of the few conducted at such a disaggregated level of occupations, and one of few studies focused on Central and Eastern European countries and the first one for Poland.

Chinese internal migrants without a local hukou (household registration) are often discriminated against in the urban labour market. This study examines the impacts of such discrimination on wage differentials and the distribution among urban locals, urban migrants and rural migrants. It uses an extended analytical framework of segmented labour market to examine the multiple segmentations between urban residents and rural migrants and between locals and non-locals. The results show that, compared with urban locals, rural migrants only face discrimination above the medium-wage level, while urban migrants face discrimination below the medium-wage level, but to a much lesser degree. Owing to structural differences in employment, urban locals (rather than migrant workers) are discriminated against at other wage levels. The results suggest that the hukou system still plays an important role in segmenting China's urban labour market. The degree of discrimination against urban migrants relative to urban locals is greater than that against rural migrants relative to urban migrants. This suggests that nowadays China's urban labour market is mainly characterised by the segmentation between locals and non-locals, rather than the segmentation between urban residents and rural migrants, which was the case in the past.