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On The Choice Of Functional Forms In The Measurement Of Scale And Scope Economies: Generalized Box-Cox And Composite Cost Functions

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Ogunyinka, Ebenezer
Featherstone, Allen

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Abstract

This paper estimates and compares generalized Box-Cox and composite cost functions to identify scale and scope economies. The robustness of the outcomes to different functional specifications was examined. Increasing returns to scale was common for product-specific and the overall measures. Generalized Leontief and composite forms yielded more robust elasticity, scale and scope measures. The generalized Box-Cox model was selected as the appropriate functional form as all the special cases were rejected.

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Paper provided by Southern Agricultural Economics Association in its series 2003 Annual Meeting, February 1-5, 2003, Mobile, Alabama with number 35057.

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Date of creation: 2003
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Handle: RePEc:ags:saeatm:35057

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  1. Pulley, Lawrence B & Humphrey, David B, 1993. "The Role of Fixed Costs and Cost Complementarities in Determining Scope Economies and the Cost of Narrow Banking Proposals," Journal of Business, University of Chicago Press, vol. 66(3), pages 437-62, July. [Downloadable!] (restricted)
  2. Caves, Douglas W & Christensen, Laurits R & Tretheway, Michael W, 1980. "Flexible Cost Functions for Multiproduct Firms," The Review of Economics and Statistics, MIT Press, vol. 62(3), pages 477-81, August. [Downloadable!] (restricted)
  3. Pulley, Lawrence B & Braunstein, Yale M, 1992. "A Composite Cost Function for Multiproduct Firms with an Application to Economies of Scope in Banking," The Review of Economics and Statistics, MIT Press, vol. 74(2), pages 221-30, May. [Downloadable!] (restricted)
  4. Berndt, Ernst R & Khaled, Mohammed S, 1979. "Parametric Productivity Measurement and Choice among Flexible Functional Forms," Journal of Political Economy, University of Chicago Press, vol. 87(6), pages 1220-45, December. [Downloadable!] (restricted)
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