Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
This paper examines whether experienced players in Major League Baseball are paid more than their contribution to team revenue. The author shows that wages increase with experience independently of productivity gains. The results, therefore, contradict the human capital model of investment. The evidence is in fact consistent with implicit contract models because most older players are relatively overpaid. Copyright 1992 by MIT Press.