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Oligopoly dynamics with barriers to entry

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Author Info
Jaap H. Abbring
Jeffrey R. Campbell

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Abstract

This paper considers the effects of raising the cost of entry for potential competitors on infinite-horizon Markov- perfect industry dynamics with ongoing demand uncertainty. All entrants serving the model industry incur sunk costs, and exit avoids future fixed costs. We focus on the unique equilibrium with last- in first-out expectations: a firm never exits before a younger rival does. When an industry can support at most two firms, we prove that raising barriers to a second producer’s entry increases the probability that some firm will serve the industry and decreases its long-run entry and exit rates. In numerical examples with more than two firms, imposing a barrier to entry stabilizes industry structure.

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Paper provided by Federal Reserve Bank of Chicago in its series Working Paper Series with number WP-06-29.

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Date of creation: 2006
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Handle: RePEc:fip:fedhwp:wp-06-29

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Keywords: Oligopolies;

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  1. Jaap H. Abbring & Jeffrey R. Campbell, 2006. "Last-in first-out oligopoly dynamics," Working Paper Series WP-06-28, Federal Reserve Bank of Chicago. [Downloadable!]
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  2. Dennis W. Carlton, 2004. "Why Barriers to Entry Are Barriers to Understanding," American Economic Review, American Economic Association, vol. 94(2), pages 466-470, May. [Downloadable!]
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  3. Dixit, Avinash, 1980. "The Role of Investment in Entry-Deterrence," Economic Journal, Royal Economic Society, vol. 90(357), pages 95-106, March. [Downloadable!] (restricted)
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  4. Preston R. Fee & Hugo M. Mialon & Michael A. Williams, 2004. "What Is a Barrier to Entry?," American Economic Review, American Economic Association, vol. 94(2), pages 461-465, May. [Downloadable!]
  5. Jeffrey R. Campbell, 2005. "Competition in Large Markets," 2005 Meeting Papers 356, Society for Economic Dynamics.
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  6. Timothy Dunne & Mark J. Roberts & Larry Samuelson, 1988. "Patterns of Firm Entry and Exit in U.S. Manufacturing Industries," RAND Journal of Economics, The RAND Corporation, vol. 19(4), pages 495-515, Winter. [Downloadable!] (restricted)
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  7. Jovanovic, Boyan, 1982. "Selection and the Evolution of Industry," Econometrica, Econometric Society, vol. 50(3), pages 649-70, May. [Downloadable!] (restricted)
  8. Jeffrey R. Campbell & Hugo A. Hopenhayn, 2005. "Market Size Matters," Journal of Industrial Economics, Blackwell Publishing, vol. 53(1), pages 1-25, 03. [Downloadable!] (restricted)
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  9. Fishman, Arthur & Rob, Rafael, 2003. "Consumer inertia, firm growth and industry dynamics," Journal of Economic Theory, Elsevier, vol. 109(1), pages 24-38, March. [Downloadable!] (restricted)
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