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Nonlinear relationship between the weather phenomenon El niño and Colombian food prices

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  • Davinson Stev Abril‐Salcedo
  • Luis Fernando Melo‐Velandia
  • Daniel Parra‐Amado

Abstract

Extreme weather events, like a strong El Niño (ENSO), affect society in many different ways especially in the context of recent globe warming. In the Colombian case, ENSO had a significant impact on consumer food prices during the strongest event in 2015. Our research evaluates the relationship between ENSO and Colombian food inflation growth by using a smooth transition nonlinear model. We estimate the impacts of a strong ENSO on food inflation growth by adopting generalised impulse response functions (GIRFs). The results suggest that the weather shocks are transitory and asymmetric on inflation. A strong El Niño shock has a significant effect on the food inflation growth from five to nine months after the shock, and the accumulated elasticity is close to 730 basic points. We build the GIRFs for eight different episodes associated with a strong El Niño in the period corresponding from March 1962 to December 2018, and there is no evidence of changes in the size of Colombian food inflation growth responses over time. Finally, the negative shock, associated with a strong La Niña, shows an ambiguous effect on food prices.

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  • Davinson Stev Abril‐Salcedo & Luis Fernando Melo‐Velandia & Daniel Parra‐Amado, 2020. "Nonlinear relationship between the weather phenomenon El niño and Colombian food prices," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 64(4), pages 1059-1086, October.
  • Handle: RePEc:bla:ajarec:v:64:y:2020:i:4:p:1059-1086
    DOI: 10.1111/1467-8489.12394
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    2. Arellano-Gonzalez, Jesus & Juarez-Torres, Miriam & Zazueta-Borboa, Francisco, 2021. "Temperature shocks and local price changes of agricultural products: panel data evidence from Mexico," 2021 Annual Meeting, August 1-3, Austin, Texas 314060, Agricultural and Applied Economics Association.
    3. Julián Alonso Cárdenas-Cárdenas & Deicy J. Cristiano-Botia & Nicolás Martínez-Cortés, 2023. "Colombian inflation forecast using Long Short-Term Memory approach," Borradores de Economia 1241, Banco de la Republica de Colombia.
    4. Luis Guillermo Becerra-Valbuena & Jorge A. Bonilla, 2021. "Climatic shocks, air quality, and health at birth in Bogotá," Working Papers halshs-03429482, HAL.
    5. Romero, José Vicente & Naranjo-Saldarriaga, Sara, 2024. "Weather shocks and inflation expectations in semi-structural models," Latin American Journal of Central Banking (previously Monetaria), Elsevier, vol. 5(2).
    6. Valeria Bejarano-Salcedo & Juan Manuel Julio-Román & Edgar Caicedo-García & Julián Alonso Cárdenas-Cárdenas, 2020. "Entendiendo, Modelando y Pronosticando el Efecto de “El Niño” Sobre los Precios de los Alimentos: El Caso Colombiano," Borradores de Economia 1102, Banco de la Republica de Colombia.
    7. Luis Guillermo Becerra-Valbuena & Jorge A. Bonilla, 2021. "Climatic shocks, air quality, and health at birth in Bogotá," PSE Working Papers halshs-03429482, HAL.
    8. Romero, José Vicente & Naranjo-Saldarriaga, Sara, 2024. "Weather shocks and inflation expectations in semi-structural models," Latin American Journal of Central Banking (previously Monetaria), Elsevier, vol. 5(2).
    9. Arellano Gonzalez Jesus & Juárez-Torres Miriam & Zazueta Borboa Francisco, 2023. "Temperature shocks and their effect on the price of agricultural products: panel data evidence from vegetables in Mexico," Working Papers 2023-02, Banco de México.
    10. Gilles Dufrénot & William Ginn & Marc Pourroy, 2021. "The Effect of ENSO Shocks on Commodity Prices: A Multi-Time Scale Approach," Working Papers halshs-03225070, HAL.

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    JEL classification:

    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models
    • C50 - Mathematical and Quantitative Methods - - Econometric Modeling - - - General
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation

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