Abstract
A random assignment of recently graduated physicians to their first job— through a nationwide public service program in Colombia — provides a test for sex-biased hiring. Using administrative data from the program, we find that the random assignment to the first job increases both the probability of a woman being hired and her earnings up to 5 years after the program. We provide evidence that one of the main channels at work is the positive effect on the probability of access to graduate clinical programs. The evidence suggests that the random assignment to the first job fostered impartiality in hiring and access to graduate clinical programs.