The main question raised in this paper is whether GPs should self select their payment mechanism or not. To answer it, we model GPs' behavior under the most common payment schemes (capitation and fee-for-service) and when GPs can select one among those. Our analysis considers GPs heterogeneity...

Several papers have tested the empirical validity of the migration models proposed by Borjas (1987) and Borjas, Bronars, and Trejo (1992). However, to our knowledge, none has been able to disentangle the separate impact of observable and unobservable individual characteristics, and their...