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Impacts of extreme events on technical efficiency in Vietnamese agriculture

Author

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  • Yoro Diallo

    (CERDI - Centre d'Études et de Recherches sur le Développement International - UCA [2017-2020] - Université Clermont Auvergne [2017-2020] - CNRS - Centre National de la Recherche Scientifique)

  • Sébastien Marchand

    (CERDI - Centre d'Études et de Recherches sur le Développement International - UCA [2017-2020] - Université Clermont Auvergne [2017-2020] - CNRS - Centre National de la Recherche Scientifique)

  • Etienne Espagne

    (CIRED - centre international de recherche sur l'environnement et le développement - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - EHESS - École des hautes études en sciences sociales - AgroParisTech - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche Scientifique, AFD - Agence française de développement, CERDI - Centre d'Études et de Recherches sur le Développement International - UCA [2017-2020] - Université Clermont Auvergne [2017-2020] - CNRS - Centre National de la Recherche Scientifique)

Abstract

The aim of this study is to examine farm household-level impacts of weather extreme events on Vietnamese rice technical efficiency. Vietnam is considered among the most vulnerable countries to climate change, and the Vietnamese economy is highly dependent on rice production that is strongly affected by climate change. A stochastic frontier analysis is applied with census panel data and weather data from 2010 to 2014 to estimate these impacts while controlling for both adaptation strategy and household characteristics. Also, this study combines these estimated marginal effects with future climate scenarios (Representative Concentration Pathways 4.5 and 8.5) to project the potential impact of hot temperatures in 2050 on rice technical efficiency. We find that weather shocks measured by the occurrence of floods, typhoons and droughts negatively affect technical efficiency. Also, additional days with a temperature above 31°C dampen technical efficiency and the negative effect is increasing with temperature. For instance, a one day increase in the bin [33°C-34°C] ([35°C and more]) lessen technical efficiency between 6.84 (2.82) and 8.05 (3.42) percentage points during the dry (wet) season.

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  • Yoro Diallo & Sébastien Marchand & Etienne Espagne, 2019. "Impacts of extreme events on technical efficiency in Vietnamese agriculture," CERDI Working papers halshs-02080285, HAL.
    • Handle: RePEc:hal:cdiwps:halshs-02080285
    Note: View the original document on HAL open archive server: https://shs.hal.science/halshs-02080285
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    2. Ferrer, Alice Joan G. & Thanh, Le Ha & Kiet, Nguyen Tuan & Chuong, Pham Hong & Trang, Vu Thu & Hopanda, Jinky C. & Carmelita, Benedict Mark & Gummadi, Sridhar & Bernardo, Eisen Bernard, 2022. "The impact of an adjusted cropping calendar on the welfare of rice farming households in the Mekong River Delta, Vietnam," Economic Analysis and Policy, Elsevier, vol. 73(C), pages 639-652.

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