It is not unusual for baseball general managers (GMs) to have network ties to their potential trading partners, either to the other teams’ GMs or to the teams themselves. This article investigates whether these connections affect the degree of trading activity between specific team pairs....

College football recruits choose their schools partly for the opportunity to play for a specific coach. It is not unusual for the coach who recruited the player to leave before the end of the player’s career. This article investigates whether these departures affect a player’s...