1. A Model of Dynamic Limit Pricing with an Application to the Airline Industry
- Author
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James W. Roberts, Christopher Gedge, and Andrew Sweeting
- Subjects
Microeconomics ,Economics and Econometrics ,jel:D82 ,jel:L13 ,0502 economics and business ,05 social sciences ,Economics ,Profitability index ,jel:D43 ,050207 economics ,jel:L41 ,jel:L93 ,Limit price - Abstract
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 we also calibrate our model to show that it can generate the large price declines that are observed in the data.
- Published
- 2020
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