We determine workforce composition and wages in firms in the presence of productivity spill-overs between co-workers. In equilibrium, workers' wages depend on the production struc- ture of firms, own group size, and aggregate workforce composition in the firm. We estimate the wage effects of...

Recent empirical evidence seems to show that temporary migration is a widespread phenomenon, espe- cially among highly skilled workers who return to their countries of origin when these begin to grow. This paper develops a simple, tractable overlapping generations model that provides a rationale...

We analyze differences in unemployment between natives and immigrants over the business cycle. Using matched employer-employee data for Austria, we find that immigrants' unemployment rate and flows into and out of unemployment are significantly more sensitive to labor market shocks than those of...

A firm's decision to employ agency workers may be perceived as a replace- ment of directly employed workers or as way to curb union power, which trade unions would oppose. Alternatively, trade unions may encourage the (tem- porary) employment of agency workers in a firm, if they manage to...

We use data on Austrian firms and employees to estimate the effects of employer-provided training on productivity, wages, and the inequality of wages within firms. While the average amount spent on employer-provided training is low in general, we find a robust positive elasticity of training on...

Decomposing wages into worker and firm wage components, we find that firm-fixed components (firm rents) are sizeable parts of workers' wages. If workers can only imperfectly observe the extent of firm rents in their wages, they might be mislead about the overall wage distribution. Such...

Sick workers in many countries receive sick pay during their illness- related absences from the workplace. In several countries, the social security system insures firms against their workers' sickness absences. However, this insurance may create moral hazard problems for firms, leading to the...

We examine the effect of joint custody on marriage, divorce, fertility and female employment in Austria using individual-level administrative data, covering the entire population. We also use unique data obtained from court records to analyze the effect on post-divorce outcomes. Our estimates...