<title>Abstract</title> <italic>Fair employment policies constrain employee selection: specifically, applicants’ professional experience can be a substitute for formal education. However, reflecting firm-specific job requirements, this substitution rule applies less strictly to applicants from outside the firm....</italic>

We analyze a standard employee selection model given two institutional constraints: First, professional experience perfectly substitutes insufficient formal education for insiders while this substitution is imperfect for outsiders. Second, in the latter case the respective substitution rate...