After three years in the National Collegiate Athletic Association (NCAA), collegiate football players face a trade-off between spending more time in the NCAA and pursuing a career in the National Football League (NFL) by declaring for the draft. We analyze the starting salaries and signing...

After three years in the National Collegiate Athletic Association (NCAA), collegiate football players face a trade-off between spending more time in the NCAA and pursuing a career in the National Football League (NFL) by declaring for the draft. We analyze the starting salaries and signing...

After three years in the National Collegiate Athletic Association (NCAA), collegiate football players face a trade-off between spending more time in the NCAA and pursuing a career in the National Football League (NFL) by declaring for the draft. We analyze the starting salaries and signing...

This study analyses whether the decision to work while sick can be linked to workload fluctuations. Drawing on data collected from professional soccer, we exploit the dynamics of a season and use additional (national and international) cup games conducted in the second half of a season as a...

We use data from top-level soccer to examine determinants of individual misbehaviour in team contests. Our estimates indicate a significant positive and non-linear relationship between a player's age and (relative) ability on the one hand and the tendency to misbehave on the other. These...

We analyse evaluation biases caused by physical attributes. Using data from German elite soccer, we find that referees are more inclined to sanction players when the difference in body size is sufficiently large. Moreover, we document an 'inverse Napoleon effect' in situations when the referee...

This paper examines the impairing effect of heat stress on cognitive abilities in a high-stakes setting. Building on rich play-by-play data from the National Football League (NFL) linked to variations in game-time temperature, we find that players are about 25% more likely to be sanctioned for...