Barren lives: drought shocks and agricultural vulnerability in the Brazilian Semi-Arid

Lucas Costa, André Albuquerque Sant'Anna and Carlos Eduardo Young ()

Environment and Development Economics, 2023, vol. 28, issue 6, 603-623

Abstract: This paper studies the effects of drought shocks in a vulnerable environment – the Brazilian Semi-Arid. We analyze the impact of drought shocks, measured as deviations from long-run historical averages, on agricultural outcomes in a region that suffers recurrently from drought. After controlling for municipality and year fixed effects, we use weather shocks to exactly identify outcomes. Our benchmark results show substantial effects on the loss of crop area and on the value of agricultural output, as well as on crop yields. As we investigate distributional effects, our results show that crops related to familiar agriculture suffer more from drought shocks. We follow our investigation by testing heterogeneity effects and show that adequate water provision and maintenance of forest cover help in reducing the impact of drought shocks.

Date: 2023
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Working Paper: Barren Lives: Drought shocks and agricultural vulnerability in the Brazilian Semi-Arid (2020)
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