Department of Economics
213 Social Sciences Building
Durham, NC 27708
Institutional Affiliation: Duke University
NBER Working Papers and Publications
|July 2014||A Model of Dynamic Limit Pricing with an Application to the Airline Industry|
with James W. Roberts, Andrew Sweeting: w20293
The one-shot nature of most theoretical models of strategic investment, especially those based on asymmetric information, limits our ability to test whether they can fit the data. We develop a dynamic version of the classic Milgrom and Roberts (1982) model of limit pricing, where a monopolist incumbent has incentives to repeatedly signal information about its costs to a potential entrant by setting prices below monopoly levels. The model has a unique Markov Perfect Bayesian Equilibrium under a standard form of refinement, and equilibrium strategies can be computed easily, making it well suited for empirical work. We provide reduced-form evidence that our model can explain why incumbent airlines cut prices when Southwest becomes a potential entrant into airport-pair route markets, and ...