Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
This study investigates determinants of revenue in North America's four major professional sports leagues. Revenue is positively associated with on‐field success in baseball (MLB), basketball (NBA), and hockey (NHL), but not in football (NFL). The returns to success are not diminishing as commonly assumed, which casts doubt on the uncertainty of outcome hypothesis, and differences across leagues are consistent with revenue sharing arrangements. Estimates indicate a strong negative but diminishing relationship between stadium age and revenue. Teams in larger markets generate more revenue than smaller markets, but the returns to success do not differ according to market size. (JEL Z21)