Existing evidence shows that decision-makers' social ties to internal co-workers can lead to reduced firm performance. In this paper, we show that decision-makers' social ties to external transaction partners can also hurt firm performance. Specifically, we use 34 years of data from the National...

Existing evidence shows that decision makers’ social ties to internal co-workers can lead to reduced firm performance. In this article, we show that decision makers’ social ties to external transaction partners can also hurt firm performance. Specifically, we use 34 years of data from the...