Who benefits from privileged peers? Evidence from siblings in schools

By comparing siblings attending the same school at different points in time, we investigate whether the effect of peer quality on long-term labor market outcomes varies with parental background. We find that exposure to better peers—who have higher mean parental education—increases lifetime earnings of disadvantaged students, coming from families with low parental education, but penalizes privileged students from better educated families. These results suggest that desegregation policies that allocate disadvantaged students to schools with better peers produce long-term benefits. We discuss mechanisms and show that human capital accumulation, ordinal rank and network effects contribute to explain our findings.     

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.     

State dependence and unobserved heterogeneity in the employment transitions of the over-50s

This paper examines employment transitions among men and women in the UK aged between 50 and the state pension age. We use a fourth order Markov model to estimate quarterly transitions while allowing for potential endogeneity of initial conditions. The results reject exogeneity of initial conditions and show the importance of state dependence. We compare the results to those obtained with a younger sample and find evidence of a sorting process over the life-cycle whereby men’s employment transitions are increasingly characterized by state dependence while, for women, unobserved heterogeneity becomes more important. We discuss some potential policy implications of the results.     

The “Bologna Process” and college enrollment decisions

We use survey data on high school graduates before and after the Italian reform of tertiary education implementing the “Bologna Process” to estimate its impact on college enrollment. Individuals leaving school after the reform have a probability of enrollment that is 15% higher compared to otherwise identical individuals. This increase is concentrated among individuals with good school performance and low parental background. We interpret this result as an indication of the existence of constraints – for good students from less advantaged households – on the optimal schooling decision. We also find a small negative impact of the reform on university drop-out.     

Why So Unhappy? The Effects of Unionization on Job Satisfaction*

Using linked employer–employee data we investigate the job satisfaction effect of union membership in Britain. We develop a model that simultaneously controls for the determinants of individual membership status and for the selection of employees into occupations according to union coverage. We find a negative association between membership and satisfaction. However, having accounted for selection effects, we find that the negative association is confined to non‐covered employees. This is consistent with ‘voice’ effects, whereby non‐covered members voice dissatisfaction to achieve union goals, and with the possibility that membership increases preferences for collective bargaining, thus lowering members’ satisfaction in non‐covered environments.     

Volunteer Labour Supply: the role of workers' motivations

Abstract In this paper we study the determinants of volunteering. We depart from previous literature that considers only economic incentives and investigate the role that extrinsic and intrinsic motivations play in shaping the supply of voluntary labour. We build on previous theoretical research and derive a framework for interpreting results from our econometric analysis. We consider a sample of Italian workers of which we can observe proxies of motivations and volunteering choices in three different sectors: social services, political activism and union activism. We make due allowance for the endogeneity of motivations and show that both types of motivations have an effect on volunteering. Consistently with theoretical models, we find extrinsic motivations to lower voluntary labour supply, whereas the opposite holds for intrinsic motivations .     

Does Union Membership Really Reduce Job Satisfaction?

We investigate the effect of union membership on job satisfaction. Using linked employer–employee data from the 1998 British Workplace Employee Relations Survey, we analyse the relationship between the membership decision and overall job satisfaction and satisfaction with pay. In this paper we account for the endogenous selection induced by the sorting of workers into unionized jobs. Controlling for both individual and establishment heterogeneity and explicitly modelling the effect of union status, we find that the marked difference in job satisfaction between unionized and non‐unionized workers disappears, suggesting that a selection effect, rather than a causal effect, characterizes the relationship.     

Modelling low income transitions

We examine the determinants of low income transitions using first‐order Markov models that control for initial conditions effects (those found to be poor in the base year may be a non‐random sample) and for attrition (panel retention may also be non‐random). The model estimates, derived from British panel data for the 1990s, indicate that there is substantial state dependence in poverty, separate from persistence induced by heterogeneity. We also provide estimates of low income transition rates and lengths of poverty and non‐poverty spells for persons of different types. Copyright © 2004 John Wiley & Sons, Ltd.