Whose Numbers Count? Resolving Conflicting Evidence on Bt Cotton in India

Ronald J. Herring
Cornell University
Email: rjh5@cornell.edu

Click here to download working paper

Abstract
The relationship between poverty and transgenic agricultural crops has created a global rift at the frontier of development studies. Proponents and opponents of biotechnology each have a story about poverty to tell – but with different conclusions. Some, but not all, central questions in this debate should be amenable to empirical treatment, but the empirical case itself has generated divergent numbers. Controversy about yields, cash inputs, profits and labor effects on poor farms remains prominent in India, as in other countries, despite growing consensus in international institutions. Studies from India come to diametrically opposed findings about Bt cotton: either the technology is scale-neutral and helpful to farmers of all size classes, or produces rural catastrophe – reaching the characterization “genocidal” in one prominent critique. This essay reviews the dispute and discusses a field trip meant to investigate mechanisms in the most controversial district in India. Given lack of agreement on what science to trust, or how much science counts, one possible epistemological move is to indirect indicators: how do farmers behave? Farmers count carefully; their numbers should count. The methodological suggestion is for close investigation of mechanisms at the field level to assess plausibility of data-driven anomalies. Interpolating among these indicators, this essay concludes that Bt cotton technology in India has been quite successful on agronomic, economic and environmental grounds to date; persistent claims to the contrary have both methodological and instrumental roots.

 

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