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Effect of Prices, Traits and Market Structure on Corn Seeding Density


  • Mitchell, Paul D.
  • Shi, Guanming
  • Ma, Xingliang
  • Lauer, Joseph G.


Recent agronomic research finds that economically optimal seeding densities have likely increased for many Midwestern corn farmers as a result of genetic improvements including new GM traits such as Bt corn and herbicide tolerance. We derive a per acre demand model for hybrid seed corn to examine the determinants of corn seeding densities and estimate the model using a large data set of individual farmer seed corn purchases. Current results identify factors other than prices affecting farmer corn seeding densities. Among these factors are the GM trait of the seed corn, measures of the local seed corn market structure, seed purchase source and intended end use. We interpret these effects in terms of information effects—farmers with more/better access to the latest agronomic research indicating that recommended seeding densities should be increased tend to plant corn at higher densities.

Suggested Citation

  • Mitchell, Paul D. & Shi, Guanming & Ma, Xingliang & Lauer, Joseph G., 2009. "Effect of Prices, Traits and Market Structure on Corn Seeding Density," 2009 Annual Meeting, July 26-28, 2009, Milwaukee, Wisconsin 49520, Agricultural and Applied Economics Association.
  • Handle: RePEc:ags:aaea09:49520

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    Cited by:

    1. Xingliang Ma & Melinda Smale & David J. Spielman & Patricia Zambrano & Hina Nazli & Fatima Zaidi, 2017. "A Question of Integrity: Variants of Bt Cotton, Pesticides and Productivity in Pakistan," Journal of Agricultural Economics, Wiley Blackwell, vol. 68(2), pages 366-385, June.
    2. Ma, Xingliang & Smale, Melinda & Spielman, David J. & Zambrano, Patricia & Nazli, Hina & Zaidi, Fatima, 2016. "Varietal integrity, damage abatement, and productivity: Evidence from the cultivation of Bt cotton in Pakistan:," IFPRI discussion papers 1520, International Food Policy Research Institute (IFPRI).

    More about this item


    hybrid seed corn; Bt corn; herbicide tolerance; Herfindahl index; corn borer; rootworm; hyperbolic yield model; Agribusiness; Crop Production/Industries; Farm Management; Industrial Organization; Production Economics; D2; D21; Q1; Q12;

    JEL classification:

    • D2 - Microeconomics - - Production and Organizations
    • D21 - Microeconomics - - Production and Organizations - - - Firm Behavior: Theory
    • Q1 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture
    • Q12 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Micro Analysis of Farm Firms, Farm Households, and Farm Input Markets

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