We present a simple model to illustrate how birthplace diversity may affect team performance. The model assumes that birthplace diversity increases the stock of available knowledge due to skill complementarities and decreases effciency due to communication barriers. The consequence of these two...

We analyze the impact of interim ranking on the risk taking and performance behaviour of professional athletes participating in international weightlifting competitions. Weightlifting competitions are multistage tournaments with the unique characteristic that the athletes must announce in...