We analyze how the team formation process influences the ability composition and performance of teams, showing how self-selection and random assignment affect team performance for different tasks in two natural field experiments. We identify the collaboration intensity of the task as the key...

Randomized experiments are often viewed as the "gold standard" of scientific evidence, but people's scepticism towards experiments has compromised their viability in the past. We study preferences for experimental policy evaluations in a representative survey in Germany (N1,900). We find that a...

Randomized experiments are often viewed as the "gold standard" of scientific evidence, but people's scepticism towards experiments has compromised their viability in the past. We study preferences for experimental policy evaluations in a representative survey in Germany (N1,900). We find that a...