In this paper we investigate the impact of upper and middle level managers on firm performance by simultaneously estimating manager and match qualities for management pairings in Major League Baseball (MLB). We document the economic significance of managers at both organizational levels and...

Are differences in inventor productivity due to differences in inventors’ skills or differences in the capabilities of the firms they work for? We analyze a 37-year panel that tracks the patenting of U.S. inventors and find strong evidence for serial correlation in inventors’ productivity....