Incompatibility in markets with indirect network effects can reduce consumers’ willingness to pay if they value “mix and match” combinations of complementary network components. For integrated firms selling complementary components, incompatibility should also strengthen the demand-side...

We test whether a non-binding price ceiling may serve as a focal point for tacit collusion. Our sample contains data from the credit card market during the 1980s; in the sample, most credit card issuers face a state-level interest rate ceiling, and well over half match their ceiling. Our...

In November 1991, federal lawmakers threatened to place a binding cap on credit card interest rates. I find that credit card rates declined following the regulatory threat, more so for larger and more politically visible credit card issuers. A set of stock market event studies reveals that...

We examine supplier switching decisions using a unique database that tracks firms (credit unions) and their suppliers (data processing vendors); the data are in a panel, allowing us to track supplier switching decisions at a new level of detail. We focus on two sets of relationships. First, we...