Bertrand and the long run
We propose a new model of simultaneous price competition, based on firms offer personalized prices to consumers. In a market for a homogeneous good and decreasing returns, the unique equilibrium leads to a uniform price equal to the marginal cost of each firm, at their share of the market clearing quantity. Using this result for the short-run competition, we then investigate the long-run investment decisions of the firms. While there is underinvestment, the overall outcome is more competitive than the Cournot model competition. Moreover, as the number of firms grows we approach the competitive long-run outcome.
Year of publication: |
2014-08-12
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Institutions: | School of Economics, University of Edinburgh ; Roberto Burguet (Institute for Economic Analysis, CSIC, and Barcelona GSE) |
Subject: | price competition | personalized prices | marginal cost pricing |
Saved in:
freely available
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