Productivity under Large Pay Increases: Evidence from Professional Baseball

The establishment of the free agency system in the 1970s resulted in large salary increases among professional baseball players. Historical data show that players have tended to perform better at early stages of their careers since free agency was introduced. Under the current salary bargaining system, players only become eligible for salary arbitration and free agency at predetermined points in their careers, resulting in sudden changes in salary growth rates at these points. Using data on official days of major league service, it is found that players with high expected salary growth perform better, consistent with efficiency wage theory.efficiency wages, productivity, baseball

The Effects of Social Security Taxes and Minimum Wages on Employment: Evidence from Turkey

Worker-level panel data are used to analyse the separate employment effects of increases in the social security taxes paid by employers and increases in the minimum wage in Turkey between 2002 and 2005. Variation over time and among low-wage workers in the ratio of total labour costs to the gross wage gives rise to a natural experiment. Regression estimates indicate that a given increase in social security taxes has a larger negative effect on the probability of a worker remaining employed in the next quarter than an equal-sized increase in the minimum wage. This result is incompatible with the textbook model of labour supply and demand and suggests that workers may increase effort in response to an increase in wages. Consistent with this explanation, it is found that groups with the least access to the informal sector experience the smallest disemployment effects of the minimum wage.employment, payroll taxes, minimum wages, Turkey

Career Wage Profiles and the Minimum Wage

A model of on-the-job training in the presence of a minimum wage is presented. This predicts that the minimum wage will have a negative effect on a worker's subsequent wage growth when the labour market is competitive but a U-shaped effect when it is not competitive. This prediction is then tested using data from the Annual Survey of Hours and Earnings in the United Kingdom. Workers who were affected by the minimum wage before age 22 are found to have significantly lower wage growth later in life than others, but only if they worked on jobs that were not covered by a collective labour agreement. Evidence suggests that this difference in wage growth reflects differences in productivity between workers. The results reconcile previous theoretical predictions by Becker and Acemoglu and Pischke

Productivity under large pay increases: Evidence from professional baseball

The establishment of the free agency system in the 1970s resulted in large salary increases among professional baseball players. Historical data show that players have tended to perform better at early stages of their careers since free agency was introduced. Under the current salary bargaining system, players only become eligible for salary arbitration and free agency at predetermined points in their careers, resulting in sudden changes in salary growth rates at these points. Using data on official days of major league service, it is found that players with high expected salary growth perform better, consistent with efficiency wage theory

Female labour supply and spousal education

Three hypotheses are given to explain why a married woman's work hours might be related to her husband's education, even controlling for his wage rate. Data for a single cohort of women from the NLSY 1979 suggest that women's work hours are positively related to spousal education at the time of marriage but also fall more rapidly over time after marriage among those with the most educated husbands. Cross-sectional data from the CPS for 1980-2010 indicate that the latter effect appears to have increased since 2000. Both men's and women's preferences for a traditional division of labour within the household are found to be negatively related to the husband's education among newlyweds but to rise faster over the course of a marriage when the husband is highly educated. Overall, the results provide evidence consistent with both marital sorting on the basis of attitudes to female work and changes in tastes that are influenced by marital quality. Little support is found for the argument that spousal education measures non-market productivity

The effects of social security taxes and minimum wages on employment: Evidence from Turkey

Using worker-level panel data for Turkey, this paper analyses the separate employment effects of increases in the social security taxes paid by employers and increases in the minimum wage between 2002 and 2005. Variation over time and among low-wage workers in the ratio of total labour costs to the gross wage gives rise to a natural experiment. Regression estimates indicate that a given increase in social security taxes has a larger negative effect on the probability of a worker remaining employed in the next quarter than an equal-sized increase in the minimum wage. Those who retain their jobs in the next quarter also experience a larger reduction in working hours when social security taxes increase than when the minimum wage rises. This is consistent with a situation in which workers increase effort in response to an increase in wages. Men, rural-dwellers and those under 30 are found to have the strongest overall disemployment effects in response to increases in labour costs

Income Inequality and Gender in New Zealand, 1998-2003

A number of authors have documented an increase in earnings or income inequality in New Zealand during the late 1980s and early 1990s, a period of major economic reform, however no study has evaluated changes in inequality during the post-reform era. This paper applies a recently-developed method for decomposing changes in inequality to New Zealand income and earnings data and extends it to analyse changes in inequality between men and women. Across the total working-age population, income inequality rose among both males and females between 1998 and 2003. In both cases, the majority of this was unexplained by changes in the observed determinants of income, however shifts in the distribution of education and the associated returns were responsible for part of the increase. Among the subset of workers, earnings inequality increased significantly for both genders. Although changes in the returns to measured characteristics contributed to the rise in inequality, this was partially offset by changes in the distribution of these characteristics. Between-gender inequality fell with respect to both samples. In contrast to within-gender inequality, this was largely explained by changes in the returns to the observed characteristics. Overall, there is evidence that the male and female income distributions are converging, although both are becoming more dispersed

Heterogeneous Worker Ability and Team-Based Production: Evidence from Major League Baseball, 1920-2009

A detailed longitudinal dataset is assembled containing annual performance and biographical data for every player over the entire history of professional major league baseball. The data are then aggregated to the team level for the period 1920-2009 in order to test whether teams built on a more intermediate distribution of observed talent perform better than those teams with either too high or too low a mixture of highly able and less able players. The key dependent variable used in the regressions is the percentage of games a team wins each season. Our finding is that conditioning on average player ability, dispersion in team pitching and hitting talent prior to the start of a season is related in a non-linear way to subsequent team performance. This suggests that there is an optimum heterogeneity of ability at the team level that maximises joint output. This result is robust to the inclusion of team fixed effects as well as year dummies and after controlling for the potential endogeneity of skill dispersion. These findings have potentially important applications both inside and outside of the sporting world.Baseball, Inequality, Team-based Performance

Team performance and the optimal spread of talent

Alex Bryson and colleagues use US baseball data to investigate whether performance suffers if there is too wide a gap between the skills of a team's stars and the rest.skill dispersion, baseball, firm performance

Heterogeneous Worker Ability and Team-Based Production: Evidence from Major League Baseball, 1920-2009

A detailed longitudinal dataset is assembled containing annual performance and biographical data for every player over the entire history of professional major league baseball. The data are then aggregated to the team level for the period 1920-2009 in order to test whether teams built on a more even distribution of observed talent perform better than those teams with a mixture of highly able and less able players. The dependent variable used in the regressions is the percentage of games a team wins each season. We find that conditioning on average player ability, dispersion of both batting and pitching talent displays an optimal degree of inequality, in that teams with too high or too low a spread in player ability perform worse than teams with a more balanced distribution of offensive and defensive talent. These findings have potentially important applications both inside and outside of the sporting world.firm performance, skill dispersion, baseball