Just a Question of Selection? The Causal Effect of Profit Sharing on a Firm's Performance
利用德国企业面板数据，结合匹配与双重差分方法，研究发现实施利润分享的企业在实施前已具有更高生产率，但控制选择偏差后，利润分享仍显著提升企业生产率。
Using German firm panel data, we analyze the productivity effects of profit sharing. Because selectivity should pose a severe problem in this context, we combine matching with a difference‐in‐differences approach. This method enables us to rule out potential bias. Our results suggest that selectivity does indeed matter. Firms with very special characteristics apply profit sharing. We find that these establishments are already more productive before they decide to implement profit sharing. Nevertheless, after accounting for selection, our results show that the introduction of profit sharing leads to a significantly higher productivity in these firms.