Abstract
This paper argues that illegal migrant laborers who are currently in the United States should be granted permanent residency if they have contributed to its economy for a certain period of time, which I will not attempt to specify, and if they have not committed any serious crimes in the country . My argument is theoretical and tentative. For some of my points would benefit from empirical support, but there are no definitive statistics on the relevant issues. The aim, accordingly, is to create a framework, and I hope a demand, for empirical investigations of illegal immigration that could lend factual support to my claims.