Market structure and quality: an application to the banking industry
This paper presents empirical evidence consistent with the predictions of the endogenous sunk cost model of Sutton (1991), with an application to banks. In particular, banking markets remain concentrated regardless of market size. Given an asymmetric oligopoly where dominant and fringe firms coexist, the number of dominant banks remains unchanged with market size, with only the number of fringe banks varying across markets. Such structure is sustained by competitive investments in quality, with the level of quality increasing with market size and dominant banks providing higher quality than fringe banks. The analysis has implications for antitrust policy.
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- Shaked, Avner & Sutton, John, 1983. "Natural Oligopolies," Econometrica, Econometric Society, vol. 51(5), pages 1469-83, September.
- Lawrence J. Radecki & John Wenninger & Daniel K. Orlow, 1996. "Bank branches in supermarkets," Current Issues in Economics and Finance, Federal Reserve Bank of New York, vol. 2(Dec).
- Robert Marquez, 2002. "Competition, Adverse Selection, and Information Dispersion in the Banking Industry," Review of Financial Studies, Society for Financial Studies, vol. 15(3), pages 901-926.
- Christopher A. Williams, 1997. "Banks go shopping for customers," The Regional Economist, Federal Reserve Bank of St. Louis, issue Oct, pages 12-13.
- Ellickson, Paul, 2005. "Supermarkets as a Natural Oligopoly," Working Papers 05-04, Duke University, Department of Economics.
- Astrid A. Dick, 2002. "Demand estimation and consumer welfare in the banking industry," Finance and Economics Discussion Series 2002-58, Board of Governors of the Federal Reserve System (U.S.).
- Shaked, Avner & Sutton, John, 1987. "Product Differentiation and Industrial Structure," Journal of Industrial Economics, Wiley Blackwell, vol. 36(2), pages 131-46, December.
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