Heterogeneity, Measurement Error, and Misallocation: Evidence from African Agriculture

By D. Gollin, Christopher R. Udry. Journal of Political Economy, 2019

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Standard measures of productivity display enormous dispersion across farms in Africa. Crop yields and input intensities appear to vary greatly, seemingly in conflict with a model of efficient allocation across farms. In this paper, we present a theoretical framework for distinguishing between measurement error, unobserved heterogeneity, and potential misallocation. Using rich panel data from farms in Tanzania and Uganda, we estimate our model using a flexible specification in which we allow for several kinds of measurement error and heterogeneity. We find that measurement error and heterogeneity together account for a large fraction of the dispersion in measured productivity.

Subfields: Economics and Econometrics, General Agricultural and Biological Sciences, Soil Science

View Paper: https://www.semanticscholar.org/paper/73ab687246d5fa3a07768b8034900a1192987877

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