56K modems were introduced under two competing incompatible standards. We show the importance of competition between Internet Service Providers in the adoption process. We show that ISPs were less likely to adopt the technology that more competitors adopted. This result is particularly striking...

We study a new data set of US sports card conventions in order to evaluate the pricing theory of two-sided markets. Conventions are two-sided because organizers must set fees to attract both consumers and dealers. We have detailed information on consumer price, dealer price and, since most...

This paper examines the effect of Internet penetration on competition and prices in the market for Yellow Pages advertising. We find that the diffusion of the Internet is associated with a decrease in the number of competitors and average prices for printed advertisements in the long-run....