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 driver of the effect of self-selection on team performance. We find that when the …

, such as performance. We address this question through a field experiment in an educational setting. We study the causal … impact of mindfulness meditation on academic performance through a randomized evaluation of a well-known 8-week mindfulness … and non-cognitive skills. However, it takes time before students' performance can benefit from mindfulness meditation: we …

, such as performance. We address this question through a field experiment in an educational setting. We study the causal … impact of mindfulness meditation on academic performance through a randomized evaluation of a well-known 8-week mindfulness … and non-cognitive skills. However, it takes time before students' performance can benefit from mindfulness meditation: we …