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On Pricing and Vertical Organization of Differentiated Products

Author

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  • Shi, Guanming

    (University of Wisconsin)

  • Chavas, Jean-Paul

    (University of Wisconsin)

Abstract

This paper investigates the pricing and vertical organization of differentiated products under imperfect competition. In a multiproduct context, a Cournot model is used to examine how substitution/complementarity relationships among products and vertical structures can affect the exercise of market power. This motivates a generalization of the Herfindahl-Hirschman index (termed VHHI) capturing how market concentration and vertical structures interact to influence prices of differentiated products. The analysis is applied to pricing of soybean seeds in the US over the period 2000-2007. We consider two vertical structures employed by biotech firms: vertical integration and licensing. The econometric analysis finds evidence that vertical organization has significant effects on seed prices. These effects are found to vary depending on the institutional setup and the bundling of genetic material. The empirical evidence shows that complementarity and economies of scope can reduce the effects of market concentration on prices.

Suggested Citation

  • Shi, Guanming & Chavas, Jean-Paul, 2009. "On Pricing and Vertical Organization of Differentiated Products," Staff Paper Series 535, University of Wisconsin, Agricultural and Applied Economics.
  • Handle: RePEc:ecl:wisagr:535
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    File URL: http://www.aae.wisc.edu/pubs/sps/pdf/stpap535.pdf
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    Cited by:

    1. Shi, Guanming & Stiegert, Kyle W. & Chavas, Jean-Paul, 2009. "An Analysis of Pricing in the U.S. Cotton Seed Market," 2009 Annual Meeting, July 26-28, 2009, Milwaukee, Wisconsin 51617, Agricultural and Applied Economics Association.
    2. Shi, Guanming & Stiegert, Kyle & Chavas, Jean Paul, 2010. "An Analysis of Pricing in Horizontal and Vertical Markets: The Case of the Cottonseed Market," Working Papers 201439, University of Wisconsin-Madison, Department of Agricultural and Applied Economics, Food System Research Group.

    More about this item

    JEL classification:

    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L40 - Industrial Organization - - Antitrust Issues and Policies - - - General
    • L65 - Industrial Organization - - Industry Studies: Manufacturing - - - Chemicals; Rubber; Drugs; Biotechnology; Plastics

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