In the mid-1990s, productivity growth accelerated sharply in the U.S. economy. In this paper, we identify several other industry-level changes that have occurred during the same time and argue that they are consistent with an increased use of information technology (IT). We use case studies to...

We examine how heterogeneity in customers' multi-homing tendencies affects a platform's response to new entrants in its market. We develop a formal model to generate empirical predictions and then test them leveraging a historical setting: TV broadcast station entry into local newspaper markets...