The COVID-19 pandemic shut down sporting events worldwide. Local policy makers and league officials face important decisions about restarting play, especially in professional leagues that draw large numbers of spectators to games. We analyze the impact of professional sporting events on local...

We examine the effects of financial incentives on effort supplied by football clubs in European domestic leagues. Tournament theory predicts that the amount of effort supplied varies with returns to effort. We analyze variation in 31,746 domestic league match outcomes in ten European leagues...