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Regime shifts and technology diffusion in crop yield growth paths with an application to maize yields in Zimbabwe

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  • Myers, Robert J.
  • Jayne, Thomas S.

Abstract

An alternative specification for the trend component of crop yield growth is developed and applied to maize yield data for Zimbabwe’s large‐scale farming sector. This accounts for permanent regime shifts as new technologies are discovered but allows gradual absorption as adoption follows a diffusion path. Econometric methods are used to estimate the timing and importance of innovations, as well as the length of the diffusion path. Results from an application to Zimbabwe commercial maize yields indicate two major regime shifts that can be associated with the introduction of hybrid seed varieties, and a diffusion path that extends over a decade.

Suggested Citation

  • Myers, Robert J. & Jayne, Thomas S., 1997. "Regime shifts and technology diffusion in crop yield growth paths with an application to maize yields in Zimbabwe," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 41(3), pages 1-19.
    • Handle: RePEc:ags:aareaj:118043
    DOI: 10.22004/ag.econ.118043
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    Cited by:

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    2. Ker, Alan P. & Coble, Keith H., 1998. "On Choosing A Base Coverage Level For Multiple Peril Crop Insurance Contracts," Journal of Agricultural and Resource Economics, Western Agricultural Economics Association, vol. 23(2), pages 1-18, December.
    3. Alston, Julian M. & Pardey, Philip G. & Ruttan, Vernon W., 2008. "Research Lags Revisited: Concepts and Evidence from U.S. Agriculture," Staff Papers 50091, University of Minnesota, Department of Applied Economics.

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