In a preemption game, players decide when to take an irreversible action. Delaying the action exogenously increases payoffs, but there is an early mover advantage. Riordan (1992) shows that in a preemption game with two asymmetric players, players act in decreasing order of efficiency. This...

This note presents a simple algorithm for characterizing the set of pure strategy Nash equilibria in a broad class of entry games. The algorithm alleviates much of the computational burden associated with recently developed econometric techniques for estimating payoff functions inferred from...

The paper proves that (static) non cooperative foreclosing or collusive equilibria in the upstream roaming market are sustainable even if there exist more incumbents. In particular we focus on the complementarity that occurs when an incumbent upstream signs a roaming agreement with a new...

This study investigates the impact of the timing of manufacturers' market entry to an online market on the performances of all the firms in a supply chain. It considers a multi-echelon supply chain which consists of two manufacturers, who sell differentiated products and compete with each other,...

This paper investigates how video game publishers' choice of game release date is affected by the expected level of competition within the game's product niche. We identify game niches by genre, age-appropriateness, a four week window cohort, publisher and console system. Our analysis is based...

This paper extends the static analysis of oligopoly structure into an infinite-horizon setting with sunk costs and demand uncertainty. The observation that exit rates decline with firm age motivates the assumption of last-in first-out dynamics: An entrant expects to produce no longer than any...

This paper estimates a dynamic model of store adjustments in product variety that considers multiproduct service technology to evaluate the impact of entry regulations on variety and long-run profits in Swedish retail. Using rich data on stores and product categories, we find that more liberal...

This paper examines the importance of geographical differentiation in store location decisions of firms in the retail discount industry. Using a novel data set that includes the store locations and accompanying market conditions for all stores belonging to the Wal-Mart, Kmart, and Target chains,...

This Chapter reviews the theoretical literature on entry games and free entry equilibria. We show that a wide range of symmetric oligopoly models share common comparative statics properties. Individual profits and quantities decrease in the number of firms, and tend to competitive or...

We develop a model of vertical innovation in which firms incur a market entry cost and choose a unique level of quality. Once established, firms compete for market shares, selling to consumers with heterogeneous tastes for quality. The equilibrium of the pricing game exists and is unique within...