Estimating the Impact of Crop Diversity on Agricultural Productivity in South Africa

33 Pages Posted: 13 Jun 2017

See all articles by Cecilia Bellora

Cecilia Bellora

Centre d'Etudes Prospectives et d'Info. Internationales (CEPII)

Élodie Blanc

Massachusetts Institute of Technology (MIT) - Joint Program on the Science and Policy of Global Change

Jean-Marc Bourgeon

French National Institute for Agricultural Research (INRA) - UMR Economie Publique; Ecole Polytechnique - Economic Department

Eric Strobl

Ecole Polytechnique, Paris - Department of Economic Sciences; IZA Institute of Labor Economics

Date Written: June 2017

Abstract

Crop biodiversity has the potential to enhance resistance to strains due to biotic and abiotic factors and to improve crop production and farm revenues. To investigate the effect of crop biodiversity on crop productivity, we build a probabilistic model based on ecological mechanisms to describe crop survival and productivity according to diversity. From this analytic model, we derive reduced forms that are empirically estimated using detailed field data of South African agriculture combined with satellite derived data. Our results confirm that diversity has a positive and significant impact on crop survival odds. We show the consistency of these results with the underlying ecologic and agricultural mechanisms.

Suggested Citation

Bellora, Cecilia and Blanc, Élodie and Bourgeon, Jean-Marc and Strobl, Eric, Estimating the Impact of Crop Diversity on Agricultural Productivity in South Africa (June 2017). NBER Working Paper No. w23496, Available at SSRN: https://ssrn.com/abstract=2984673

Cecilia Bellora (Contact Author)

Centre d'Etudes Prospectives et d'Info. Internationales (CEPII) ( email )

20 avenue de Ségur
Paris, 75007
France

HOME PAGE: http://www.cepii.fr/

Élodie Blanc

Massachusetts Institute of Technology (MIT) - Joint Program on the Science and Policy of Global Change ( email )

77 Massachusetts Avenue
50 Memorial Drive
Cambridge, MA 02139-4307
United States

Jean-Marc Bourgeon

French National Institute for Agricultural Research (INRA) - UMR Economie Publique ( email )

Centre de Grignon
BP01
Thiverval-Grignon, 78850
France

Ecole Polytechnique - Economic Department ( email )

Palaiseau, 91128
France

HOME PAGE: http://www.polytechnique.edu

Eric Strobl

Ecole Polytechnique, Paris - Department of Economic Sciences ( email )

Ecole Polytechnique
Department of Economics
Paris, 75005
France

IZA Institute of Labor Economics

P.O. Box 7240
Bonn, D-53072
Germany

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