This paper accounts for work sharing and unemployment in an efficiency wage model. The Solow condition holds when working hours are exogenous. Under the assumption of endogeneity and using general forms for the effort and cost functions, we prove that work sharing may have a reducing impact on...

This paper accounts for work sharing and unemployment in an efficiency wage model. The Solow condition holds when working hours are exogenous. Under the assumption of endogeneity and using general forms for the effort and cost functions, we prove that work sharing may have a reducing impact on...

We consider a model of international migration with heterogeneity in the skill level of workers which accounts for country-specific educational investment, unemployment expectations and return to the origin country. We prove that migrants invest less than natives in human capital formation...

In this paper, we present a model of tax evasion in the presence of imperfect auditing. We show that there is a clear link between the degree of observability associated with respect to fiscal agency. We also show that the degree of observability is critical in determining the optimal regulation...

We consider a model of international migration with heterogeneity in the skill level of workers which accounts for country-specific educational investment, unemployment expectations and return to the origin country. We prove that migrants invest less than natives in human capital formation...