This paper presents estimation results on the size and loyalty of sport teams’ supporter groups in professional German football. Based on a novel two-stage estimation procedure, we find clear evidence for heterogeneity across teams. In a first stage, a random utility model for a representative...

We analyze the effect of national diversity on sports team performance. Due to language barriers, we expect the team's productivity to decrease with the number of nationalities, but that the introduction of further nations and further aspects of different cultures might lead to additional skills...