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When Does Diversity Make a Team Stronger?

A short summary of Hattori, K. (2026) “Diverse Hands, Aligned Hearts: Ability and Preference Diversity in Team Production” (Working Paper, ZBW - Leibniz Information Centre for Economics, Kiel, Hamburg).

Background

In firms, in schools, in sports, the diversity of a team’s members is said to matter a great deal. Are teams stronger when they bring different people together, or when their members resemble one another?

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Social Interaction and Team Performance

A short summary of Hattori, K. and Yamada, M. (2025) "Closing the Psychological Distance: Effect of Social Interaction on Team Performance" (April 4, 2025). Available at SSRN: https://papers.ssrn.com/abstract=5204747.

Background

Many organizations invest heavily in team-building activities and workspace design intended to encourage social interaction. Google’s campuses are designed to produce chance encounters, and the Pixar headquarters designed by Steve Jobs is famous for a layout that maximizes spontaneous conversation.

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