Online sports betting is growing rapidly around the world. We describe how the competitive structure of the bookmaking market affects odds when bettors disagree about the probabilities of the outcomes of sporting events but are on average correct. We show that the demand for bets on longshots is...

This paper studies the role of transfer fees in professional sports, where players can commit to binding long-term contracts. They cannot switch clubs before their contract expires unless the old club agrees to let them go; transfer fee is the price of that agreement. Transfer fees have been...

The paper analyses the impact of the relatively belated move to professionalism in Rugby Union. We use data on match attendance for 3,667 fixtures in European club Rugby over 15 seasons to estimate the effect of competitive balance on attendance. We find that (short- and medium-term) competitive...