Technology diffusion processes are often said to have critical mass phenomena. We apply a model of demand with installed base effects to provide theoretically grounded empirical insights about critical mass. Our model allows us to rigorously identify and quantify critical mass as a function of...

We study the dynamics of usage intensity of second-generation cellular telephony over the diffusion curve. Specifically, we address two questions: First, can we draw conclusions about the underlying drivers of technology diffusion by studying usage intensity? Second, what is the effect of high...

We examine a technology adoption game with network effects in which coordination on technology A and technology B constitute a Nash equilibrium. Coordination on technology B is assumed to be payoff-dominant. We define a technology's critical mass as the minimum share of users necessary to make...

We examine a technology-adoption game with network effects in which coordination on either technology A or technology B constitutes a Nash equilibrium. Coordination on technology B is assumed to be payoff dominant. We define a technology’s critical mass as the minimal share of users, which is...

This paper uses a typology of industries to summarize and contrast the challenges involved with industry formation and to examine why specific industries were formed in some countries before other ones. The formation of most new industries depends on the introduction of products that provide a...

Static demand models for homogeneous network goods give rise to fulfilled-expectations equilibrium demand (FEED) curves, which, contrary to normal demand curves, may be upward sloping at certain intervals. We analyze some, as yet unexplored, properties of the FEED curves. We spell out the...

We analyze price patterns at franchised and corporate-owned McDonald's outlets in 1999 and 2006 and find that prices at franchised outlets were higher than those at corporate outlets. The price difference between franchised and corporate outlets decreased between 1999 and 2006 but only for items...

We embed the Varian (1980) model in a broader setting that considers how switcher/loyal customer segments are determined. Generally, customer acquisition is deterministic while pricing is randomized. The equilibrium outcome depends on the timing of customer acquisition relative to pricing. If...

Consider a two-product firm that decides on the quality of each product. Product quality is unknown to consumers. If the firm sells both products under the same brand name, consumers adjust their beliefs about quality subject to the performance of both products. We show that if the probability...