Are Soybean Yields Getting a Free Ride from Climate Change? Evidence from Argentine Time Series Data

Econometrics

Hildegart Ahumada¹  Magdalena Cornejo¹ 

[1] School of Government, Universidad Torcuato Di Tella, Av. Figueroa Alcorta, Buenos Aires 7350, Argentina;

关键词: climate change;    soybean yields;    technology;    temperature;    CO₂;   

DOI  :  10.3390/econometrics9020024

来源: DOAJ

【 摘 要 】

We analyze the influence of climate change on soybean yields in a multivariate time-series framework for a major soybean producer and exporter—Argentina. Long-run relationships are found in partial systems involving climatic, technological, and economic factors. Automatic model selection simplifies dynamic specification for a model of soybean yields and permits encompassing tests of different economic hypotheses. Soybean yields adjust to disequilibria that reflect technological improvements to seed and crops practices. Climatic effects include (a) a positive effect from increased CO${}_2$ concentrations, which may capture accelerated photosynthesis, and (b) a negative effect from high local temperatures, which could increase with continued global warming.

【 授权许可】

Unknown