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An Exploration of Product Choices in U.S. Biotech Corn Seed Market


  • Zhang, Wenhui
  • Shi, Guanming


We investigate the market and firm-specific factors that may impact firms’ product choices in the U.S. biotech corn seed market. Specifically, we estimate how the competition effects, the conglomeration effect, the similarity effect, and other market shifters influence firms’ variety choices under imperfect competition. In addition, we examine and compare such responses among different types of firms, including integrated biotech firms versus seed companies, and the incumbent firms versus the entrant firms.

Suggested Citation

  • Zhang, Wenhui & Shi, Guanming, 2012. "An Exploration of Product Choices in U.S. Biotech Corn Seed Market," 2012 Annual Meeting, August 12-14, 2012, Seattle, Washington 124758, Agricultural and Applied Economics Association.
  • Handle: RePEc:ags:aaea12:124758

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    References listed on IDEAS

    1. Guanming Shi & Jean-paul Chavas & Kyle Stiegert, 2010. "An Analysis of the Pricing of Traits in the U.S. Corn Seed Market," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 92(5), pages 1324-1338.
    2. B. Curtis Eaton, 1972. "Spatial Competition Revisited," Canadian Journal of Economics, Canadian Economics Association, vol. 5(2), pages 268-278, May.
    3. Lisa George & Joel Waldfogel, 2000. "Who Benefits Whom in Daily Newspaper Markets?," NBER Working Papers 7944, National Bureau of Economic Research, Inc.
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    More about this item


    variety choice; imperfect competition; biotech seeds; Crop Production/Industries; Research Methods/ Statistical Methods;

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