Measuring Market Power in Professional Baseball, Basketball, Football and Hockey
Tan, Jing Ru
Forbes Magazine estimates of annual revenues, costs and team values for professional sports teams are used to derive market power measures for teams in four major professional sports leagues: the MLB, NBA, NHL, and the NFL. Two variants of the Lerner Index, one that reflects short-term operations for the past year and another reflecting the long-run net present value of the franchise are derived over the 2006-2016 period. Only the long-run measure provides estimates that are always consistent with theoretical requirements. Analysis of variance of long-run market power shows that local market factors and past team performance have less impact on market power than common league-wide effects. Team market power depends least on local team effects in leagues that have stronger revenue sharing policies. Price-cost margins are higher for professional teams in North American than for the most valuable European soccer teams, consistent with the stronger exemption from anti-trust law in the U.S.