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Climate Change and Adaptation: The Case of Nigerian Agriculture

Francesco Bosello, Lorenza Campagnolo (), Raffaello Cervigni and Fabio Eboli
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Francesco Bosello: CMCC (Centro Euro-Mediterraneo sui Cambiamenti Climatici)
Lorenza Campagnolo: CMCC (Centro Euro-Mediterraneo sui Cambiamenti Climatici)
Raffaello Cervigni: World Bank
Fabio Eboli: CMCC (Centro Euro-Mediterraneo sui Cambiamenti Climatici)

Environmental & Resource Economics, 2018, vol. 69, issue 4, 787-810

Abstract: Abstract The present research offers an economic assessment of climate change impacts on the four major crop families characterizing Nigerian agriculture. The evaluation is performed by shocking land productivity in a computable general equilibrium model tailored to replicate Nigerian economic development up to 2050. The detail of land uses in the model has been increased by differentiating land types per agro-ecological zones. Uncertainty about future climate is captured, using, as inputs, yield changes computed by a crop model under ten general circulation models runs. Climate change turns out to be negative for Nigeria in the medium term, with production losses and increase in crop prices, higher food dependency on foreign imports, and GDP losses in all the simulations after 2025. In a second part of the paper, a cost effectiveness analysis of adaptation in Nigerian agriculture is conducted. The adaptation practices considered are a mix of cheaper “soft measures” and more costly “hard” irrigation expansion. The main result is that the cost effectiveness of the whole package depends crucially on the possibility of implementing adaptation by exploiting low-cost opportunities which show a benefit-cost ratio larger than one in all the climate regimes.

Keywords: Adaptation; Agriculture; CGE modelling; Climate change; Impact assessment (search for similar items in EconPapers)
JEL-codes: C68 Q51 Q54 Q15 (search for similar items in EconPapers)
Date: 2018
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