We investigate the impact of the imposition of sanctions for employing illegal migrants on the welfare of native workers. Our analysis is based on the premise that in response to such sanctions, managers in a firm may be reassigned from supervision of production to verification of the legality...

A migration network is modeled as a mutually beneficial cooperative agreement between financially-constrained individuals who seek to finance and expedite their migration. The cooperation agreement creates a network: "established" migrants contract to support the subsequent migration of others...

A country that experiences a shortage of workers with particular skills naturally considers two responses: import skills or produce them. Skill import may result in large-scale migration, which will not be to the liking of the natives. Skill production will require financial incentives, which...