Motivated by the slow diffusion of generic drugs and the increase in prices of brand-name drugs after generic entry, I incorporate consumer learning and consumer heterogeneity into an empirical dynamic oligopoly model. In the model, firms choose prices to maximize their expected total discounted...

We investigate the decision of entry timing and product positions under market size uncertainty with Brownian motion for continuous-time spatial duopoly competition. We show the following results. First, the leader is more likely to increase the degree of product differentiation as volatility...

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,...

We study the entry timing and location decisions of two exclusive buyer-supplier relationships in a continuous-time spatial competition model. In each relationship, the firms determine their entry timing and location, and negotiate a wholesale price through Nash bargaining. Then, the downstream...

This paper develops an econometric model of firm entry, competition, and exit in oligopolistic markets. The model has an essentially unique symmetric Markov-perfect equilibrium, which can be computed very quickly. We show that its primitives are identified from market-level data on the number of...

This paper develops a simple model of firm entry, competition, and exit in oligopolistic markets. It features toughness of competition, sunk entry costs, and market-level demand and cost shocks, but assumes that firms' expected payoffs are identical when entry and survival decisions are made. We...

This paper develops an econometric model of oligopoly dynamics that can be estimated very quickly from market-level observations of demand shifters and the number of producers. We show that the model has an essentially unique symmetric Markov-perfect equilibrium and provide an algorithm that...

This paper examines a dynamic incumbent-entrant framework with stochastic evolution of the (inverse) demand, in which both the optimal timing of the investments and the capacity choices are explicitly considered. We find that the incumbent invests earlier than the entrant and that entry...

In a hub-and-spoke network, the profit function of an airline is supermodular with respect to the airline's own entry decisions for different city-pairs. This source of complementarity implies that a hub-and-spoke network can be an effective strategy for deterring the entry of competitors. This...

Retailers may face uncertainty about the profitability of local markets, which provide opportunities for learning when making entry decisions. To quantify these informational benefits, I develop an empirical framework for studying dynamic retail entry with uncertainty and learning (from others)....