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Tropospheric Ozone and Winter Wheat Production in England and Wales: A Note

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  • Bhavani Shankar
  • Harris Neeliah

Abstract

Tropospheric ozone is an air pollutant thought to reduce crop yields across Europe. Much experimental scientific work has been completed or is currently underway to quantify yield effects at ambient ozone levels. In this research, we seek to directly evaluate whether such effects are observed at the farm level. This is done by intersecting a farm level panel dataset for winter wheat farms in England & Wales with information on ambient ozone, and estimating a production function with ozone as a fixed input. Panel data methods, Generalised Method of Moments (GMM)techniques and nested exogeneity tests are employed in the estimation. The results confirm a small, but nevertheless statistically significant negative effect of ambient ozone levels on wheat yields.

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  • Bhavani Shankar & Harris Neeliah, 2005. "Tropospheric Ozone and Winter Wheat Production in England and Wales: A Note," Journal of Agricultural Economics, Wiley Blackwell, vol. 56(1), pages 145-151, March.
    • Handle: RePEc:bla:jageco:v:56:y:2005:i:1:p:145-151
    DOI: 10.1111/j.1477-9552.2005.tb00127.x
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