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...