Impact du changement climatique sur lÕagriculture: dŽtermination de lÕexistence dÕun biais de prix dans les Žtudes ricardiennes

EssŽ Fabrice Ochou () and Philippe Quirion
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EssŽ Fabrice Ochou: CIRED-UniversitŽ Felix Houphou‘t Boigny ( Abidjan-Cocody)

No 2017.04, Policy Papers from FAERE - French Association of Environmental and Resource Economists

Abstract: This study shows the existence of a price bias in the so-called ÒRicardianÓ studies inspired by Mendelsohn et al. (AER, 1994) and quantifies this bias. To do this, we use panel data on the 45 provinces of Burkina Faso over 12 years. The crops studied are maize, millet and sorghum. The analysis shows that the effects of climate variables on the yield and value of production per hectare of maize and millet are not the same, reflecting the presence of a price bias. In the case of Sorghum, the effects of climatic variables on yields and the value of production per hectare are practically the same, indicating the absence of statistically significant price bias. Quantifying the price bias in cases where it exists, ie for maize and millet shows that the more unfavorable the climate change, the greater the price bias will be. In the worst case, it reaches a gap of 2.05 percentage point for millet and 0.92 percentage point for maize. From this analysis, Ricardian in cross sectional or even panel studies assuming constant prices underestimate the impact of climate change by using income or value.

Keywords: Biais de prix; Mod le ricardien; Changement climatique; Agriculture; DonnŽes de panel (search for similar items in EconPapers)
JEL-codes: Q11 Q15 Q22 (search for similar items in EconPapers)
Pages: 49 pages
Date: 2017-06
New Economics Papers: this item is included in nep-agr and nep-env
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http://faere.fr/pub/PolicyPapers/Ochou_Quirion_FAERE_PP2017_04.pdf First version, 2017 (application/pdf)

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Persistent link: https://EconPapers.repec.org/RePEc:fae:ppaper:2017.04

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