Overlapping Ownership Along the Supply Chain

Abstract

I find overlapping institutional ownership (OIO) in a customer and supplier increases the duration of their supply chain relationship. Results are stronger when vertical holdup is more severe. A quasi-natural experiment around mergers of financial institutions provides causal evidence of OIO improving relationship survival rates. Concurrent with longer-lived relationships, valuations and innovation increase, consistent with OIO effects on relationship longevity being beneficial. I find evidence of OIO strengthening relationships via an internalization channel: With more OIO, partners cooperate more, with the supplier extending more trade credit. Overall, results indicate OIO strengthens vertical relationships by alleviating holdup problems.