Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
Firms and workers may sign complex contracts that govern many aspects of their interactions. I show that when firms regard contracts as substitutes, bargaining over contracts can be understood as bargaining only over wages. Substitutes is the assumption commonly used to guarantee the existence of stable matchings of workers and firms. (JEL C78, D86, J31, J41)