One of the most salient and relevant dimensions of team heterogeneity is ethnicity. We measure the causal impact of … ethnic diversity has no effect on team performance in terms of business outcomes (sales, profits and profits per share …). However, if at least the majority of team members is ethnically diverse, then more ethnic diversity has a positive impact on …

relationship remain unclear. First, within the firm, the role of 'top team' demography on firm outcomes is surprisingly little … top team diversity is amplified in the London city-region. …

literature indicates little improvement in team performance when one coach replaces another. Equally, Head Coaches may have few …

reweight teams' performance prior to the departure of a Coach so that trends in team performance prior to the departure match … spells which ended with a Coach remaining in post. Consistent with theory, Head Coach quits have little or no impact on team … performance whereas teams who fire their Head Coach experience small but statistically significant improvements in team …

This paper develops a novel method to identify the causal contribution of managers to team performance. The method … someone who consistently causes their team to produce more than the sum of their parts. Good managers have roughly twice the … impact on team performance as good workers. People who nominate themselves to be in charge perform worse than managers …

Based on a novel dataset, the "German Management and Organizational Practices" (GMOP) Survey, we calculate … establishment specific management scores following Bloom and van Reenen as indicators of management quality. We find substantial … heterogeneity in management practices across establishments in Germany, with small firms having lower scores than large firms on …

Partnering with the Census we implement a new survey of "structured" management practices in 32,000 US manufacturing … plants. We find an enormous dispersion of management practices across plants, with 40% of this variation across plants within … the same firm. This management variation accounts for about a fifth of the spread of productivity, a similar fraction as …