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A Dynamic Model of Price Discrimination and Inventory Management at the Fulton Fish Market

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Kathryn Graddy
George Hall

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Abstract

We estimate a dynamic profit-maximization model of a fish wholesaler who can observe consumer characteristics, set individual prices, and thus engage in third-degree price discrimination. Simulated prices and quantities from the model exhibit the key features observed in a set of high quality transaction-level data on fish sales collected at the Fulton fish market. The model's predictions are then compared to the case in which the dealer must post a single price to all customers. We find the cost to the dealer of posting a uniform price to be extremely small.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 15019.

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Date of creation: May 2009
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Handle: RePEc:nbr:nberwo:15019

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Find related papers by JEL classification:
D21 - Microeconomics - - Production and Organizations - - - Firm Behavior
D4 - Microeconomics - - Market Structure and Pricing
L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
L81 - Industrial Organization - - Industry Studies: Services - - - Retail and Wholesale Trade; e-Commerce

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  1. Andrew Sweeting, 2008. "Equilibrium Price Dynamics in Perishable Goods Markets: The Case of Secondary Markets for Major League Baseball Tickets," NBER Working Papers 14505, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  2. John Rust & Hui Man Chan & George Hall, 2004. "Price Discrimination in the Steel Market," 2004 Meeting Papers 44, Society for Economic Dynamics.
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  3. Sofia Berto Villas-Boas, 2009. "An empirical investigation of the welfare effects of banning wholesale price discrimination," RAND Journal of Economics, RAND Corporation, vol. 40(1), pages 20-46. [Downloadable!] (restricted)
    Other versions:
  4. Aguirregabiria, Victor, 1999. "The Dynamics of Markups and Inventories in Retailing Firms," Review of Economic Studies, Blackwell Publishing, vol. 66(2), pages 275-308, April. [Downloadable!] (restricted)
  5. Angrist, Joshua D & Graddy, Kathryn & Imbens, Guido W, 2000. "The Interpretation of Instrumental Variables Estimators in Simultaneous Equations Models with an Application to the Demand for Fish," Review of Economic Studies, Blackwell Publishing, vol. 67(3), pages 499-527, July.
  6. Severin Borenstein, 1991. "Selling Costs and Switching Costs: Explaining Retail Gasoline Margins," RAND Journal of Economics, The RAND Corporation, vol. 22(3), pages 354-369, Autumn. [Downloadable!] (restricted)
  7. Lee, Sokbae, 2007. "Endogeneity in quantile regression models: A control function approach," Journal of Econometrics, Elsevier, vol. 141(2), pages 1131-1158, December. [Downloadable!] (restricted)
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  8. Ayres, Ian & Siegelman, Peter, 1995. "Race and Gender Discrimination in Bargaining for a New Car," American Economic Review, American Economic Association, vol. 85(3), pages 304-21, June. [Downloadable!] (restricted)
  9. Kathryn Graddy, 1995. "Testing for Imperfect Competition at the Fulton Fish Market," RAND Journal of Economics, The RAND Corporation, vol. 26(1), pages 75-92, Spring. [Downloadable!] (restricted)
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  10. John Rust & George Hall, 2003. "Middlemen versus Market Makers: A Theory of Competitive Exchange," Journal of Political Economy, University of Chicago Press, vol. 111(2), pages 353-403, April. [Downloadable!] (restricted)
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