Are soybean yields getting a free ride from climate change? : Evidence from Argentine time series

Soybean yields are often indicated as an interesting case of climate change mitigation due to the beneficial effects of CO₂ fertilization. In this paper we econometrically study this effect using a time series model of yields in a multivariate framework for a main producer and exporter of this commo...

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Autores principales: Ahumada, Hildegart, Cornejo, Magdalena
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2018
Materias:
Ciencias Económicas
climate change
soybean yields
technology
temperature
CO₂
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/164879
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-164879
record_format dspace
spelling I19-R120-10915-1648792024-04-16T20:02:00Z http://sedici.unlp.edu.ar/handle/10915/164879 Are soybean yields getting a free ride from climate change? : Evidence from Argentine time series Ahumada, Hildegart Cornejo, Magdalena 2018-11 2018 2024-04-16T14:37:54Z en Ciencias Económicas climate change soybean yields technology temperature CO₂ Soybean yields are often indicated as an interesting case of climate change mitigation due to the beneficial effects of CO₂ fertilization. In this paper we econometrically study this effect using a time series model of yields in a multivariate framework for a main producer and exporter of this commodity, Argentina. We have to deal with the trending behavior of crop yields trying to identify which variables are the long-run determinants responsible of the observed trend in soybean yields. With this aim we adopt a partial system approach to estimate subsets of relationships due to climate, technological and economic factors. Using an automatic selection algorithm we evaluate encompassing of the different equilibrium correction models. We have found that only technological innovations due to new crop practices and the use of modified seeds explain soybean yield in the long run. Regarding short run determinants we have found positive effects associated with the use of standard fertilizers and also from changes in atmospheric CO₂ concentration which would suggest a mitigation effect from global warming. However, we have also found negative climate effects from periods of droughts associated with La Niña episodes, high temperatures and extreme rainfall events during the growing season of the plant. Facultad de Ciencias Económicas Objeto de conferencia Objeto de conferencia http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Económicas
climate change
soybean yields
technology
temperature
CO₂
spellingShingle Ciencias Económicas
climate change
soybean yields
technology
temperature
CO₂
Ahumada, Hildegart
Cornejo, Magdalena
Are soybean yields getting a free ride from climate change? : Evidence from Argentine time series
topic_facet Ciencias Económicas
climate change
soybean yields
technology
temperature
CO₂
description Soybean yields are often indicated as an interesting case of climate change mitigation due to the beneficial effects of CO₂ fertilization. In this paper we econometrically study this effect using a time series model of yields in a multivariate framework for a main producer and exporter of this commodity, Argentina. We have to deal with the trending behavior of crop yields trying to identify which variables are the long-run determinants responsible of the observed trend in soybean yields. With this aim we adopt a partial system approach to estimate subsets of relationships due to climate, technological and economic factors. Using an automatic selection algorithm we evaluate encompassing of the different equilibrium correction models. We have found that only technological innovations due to new crop practices and the use of modified seeds explain soybean yield in the long run. Regarding short run determinants we have found positive effects associated with the use of standard fertilizers and also from changes in atmospheric CO₂ concentration which would suggest a mitigation effect from global warming. However, we have also found negative climate effects from periods of droughts associated with La Niña episodes, high temperatures and extreme rainfall events during the growing season of the plant.
format Objeto de conferencia
Objeto de conferencia
author Ahumada, Hildegart
Cornejo, Magdalena
author_facet Ahumada, Hildegart
Cornejo, Magdalena
author_sort Ahumada, Hildegart
title Are soybean yields getting a free ride from climate change? : Evidence from Argentine time series
title_short Are soybean yields getting a free ride from climate change? : Evidence from Argentine time series
title_full Are soybean yields getting a free ride from climate change? : Evidence from Argentine time series
title_fullStr Are soybean yields getting a free ride from climate change? : Evidence from Argentine time series
title_full_unstemmed Are soybean yields getting a free ride from climate change? : Evidence from Argentine time series
title_sort are soybean yields getting a free ride from climate change? : evidence from argentine time series
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/164879
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