We conduct an innovative analysis of sporting world records by a) using economic instead of sporting determinants and b) by using multivariate stochastic frontier functions. Using data from 48 different disciplines between 1970 and 2014, we show that world records are close to full efficiency...

We investigate whether soccer players collect their fifth yellow card and their suspension by choice. Using data for the German Bundesliga for the seasons 13/14 to 16/17, we show that the quality of the player's own team, the quality of the teams participating in the next matches, and whether a...

We investigate whether soccer players collect their fifth yellow card and their suspension by choice. Using data for the German Bundesliga for the seasons 13/14 to 16/17, we show that the quality of the player's own team, the quality of the teams participating in the next matches, and whether a...

We conduct an innovative analysis of sporting world records by a) using economic instead of sporting determinants and b) by using multivariate stochastic frontier functions. Using data from 48 different disciplines between 1970 and 2014, we show that world records are close to full efficiency...