Using data from professional football leagues in four countries, we assess the effects on team performances following head coach turnover, distinguishing between voluntary and involuntary exits. We use entropy balancing to deal with the endogeneity of coach departures, by reweighting pre-departure covariates to obtain a comparable control group. Results reveal little, if any, positive effect from either type of turnover, though some longer-term benefits are possible if teams experience no subsequent turnover. We discuss how these findings fit with previous literature and theory, and discuss the wider practical implications.

中文翻译：

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特别的？主教练对足球队表现的影响

我们利用四个国家职业足球联赛的数据，评估主教练更替后对球队表现的影响，区分自愿退出和非自愿退出。我们使用熵平衡来处理长途汽车出发的内生性，通过重新加权出发前协变量以获得可比较的对照组。结果显示，这两种类型的人员更替几乎没有产生任何积极影响，尽管如果团队没有随后发生人员更替，则可能会带来一些长期好处。我们讨论这些发现如何与之前的文献和理论相吻合，并讨论更广泛的实际意义。