The paper analyzes the effect of mother tongue on labor market outcomes of Swiss residents. This type of analysis can shed light on an important policy question. Is the Swiss labor market well integrated, or can one find instead segmentation along language borders? Improving on previous research...

This paper formalizes the use of flexible labor contracts in an efficiency wage framework and derives market dualism as an endogenous outcome. By allowing temporary contracts to be either renewed or converted into permanent contracts, new theoretical insights emerge both on the equilibrium wage...

We develop a model of relational contracts with moral hazard and asymmetric persistent information about an employee's type. We find that the form of the optimal contract depends on the job characteristics as well as the distribution of employees' talent. Bonus contracts are more likely to be...

We develop a social network model of occupational segregation between different social groups, generated by the existence of positive inbreeding bias among individuals from the same group. If network referrals are important for job search, then expected homophily in the contact network structure...