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Groundnut Production and Climatic Variability: Evidence from Uganda

Author

Listed:
  • Aizhen Li

    () (University of Connecticut)

  • Boris E. Bravo-Ureta

    () (University of Connecticut)

  • David K. Okello

    () (National Semi-Arid Resources Research Institute (NaSARRI))

  • Carl M. Deom

    () (University of Georgia)

  • Naveen Puppala

    () (New Mexico State University)

Abstract

This study contributes to understanding the relationship between climatic variables and groundnut production in different farming systems in Uganda. Alternative production function models are estimated using pooled cross-sectional time series data at the district level. The models incorporate land area, indicators for farming systems, technological change, and either rainfall or the El Niño–Southern Oscillation (ENSO) effect as variables to account for climatic conditions. The data set includes 333 observations corresponding to 37 districts for 9 consecutive years, from 1992 to 2000. Analyses were performed using a Translog functional form and GARCH estimators. The results suggest that the partial elasticity of production for land is positive, high and significant, which is consistent with a priori expectations. Farming systems are also found to have a significant impact on output variability. Climatic conditions, measured by rainfall, have a non-significant effect; but, when the ENSO phenomenon is used instead a significant negative effect is detected particularly for the warm phase. An important and alarming finding is a marked negative rate of technological change revealing productivity losses over the time period studied.

Suggested Citation

  • Aizhen Li & Boris E. Bravo-Ureta & David K. Okello & Carl M. Deom & Naveen Puppala, 2013. "Groundnut Production and Climatic Variability: Evidence from Uganda," Working Papers 17, University of Connecticut, Department of Agricultural and Resource Economics, Charles J. Zwick Center for Food and Resource Policy.
  • Handle: RePEc:zwi:wpaper:17
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    File URL: http://www.cag.uconn.edu/are/zwickcenter/wp17.pdf
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    References listed on IDEAS

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    Cited by:

    1. Mary Thuo & Alexandra Bell & Boris Bravo-Ureta & Michée Lachaud & David Okello & Evelyn Okoko & Nelson Kidula & Carl Deom & Naveen Puppala, 2014. "Effects of social network factors on information acquisition and adoption of improved groundnut varieties: the case of Uganda and Kenya," Agriculture and Human Values, Springer;The Agriculture, Food, & Human Values Society (AFHVS), vol. 31(3), pages 339-353, September.

    More about this item

    Keywords

    Uganda; Groundnuts; Productivity; GARCH; Rainfall; ENSO;

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