We present the results from a field experiment on team diversity. Individuals working as door-to-door canvassers for a non-profit organization were randomly assigned a teammate, a supervisor, and a list of individuals to canvass. This created random variation within teams in the degree of horizontal diversity (between teammates), vertical diversity (between teammates and their supervisor) and external diversity (between teams and the individuals they canvassed). We observe team-level measures of performance and find that horizontal ethnic diversity decreases performance, while vertical diversity often improves performance, and external diversity has no effect. The data on time use suggests that horizontally homogeneous teams organized tasks in a more efficient way, while vertically homogeneous teams exerted lower effort.

我们介绍了有关团队多样性的现场实验的结果。在非营利组织中担任上门推销员的个人被随机分配给队友，主管和帆布个人名单。这在团队内部造成了水平差异（在团队成员之间），垂直差异（在团队成员与他们的主管之间）和外部差异（在团队和他们所研究的个人之间）的随机差异。我们观察了团队绩效水平的测度，发现水平种族多样性会降低绩效，而垂直种族多样性通常会提高绩效，而外部多样性则没有影响。有关时间使用的数据表明，水平同质团队以更有效率的方式组织任务，而垂直同质团队则花费较少的精力。