We review important developments in Empirical Industrial Organization (IO) over the last three decades. The paper is organized around six topics: collusion, demand, productivity, industry dynamics, interfirm contracts, and auctions. We present models that are workhorses in empirical IO, and...

This paper studies the contribution of demand, costs, and strategic factors to the adoption of hub-and-spoke networks in the US airline industry. Our results are based on the estimation of a dynamic oligopoly game of network competition using data from the Airline Origin and Destination Survey...