Ethanol Production, Food and Forests |
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Authors: | Saraly Andrade de Sá Charles Palmer Stefanie Engel |
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Institution: | 1. Environmental Policy and Economics, Institute for Environmental Decisions at ETH Z??rich, Universit?tstrasse 16, 8092, Z??rich, Switzerland 2. Department of Geography and Environment, London School of Economics, London, UK
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Abstract: | This paper investigates the direct and indirect impacts of ethanol production on land use, deforestation and food production.
A partial equilibrium model of a national economy with two sectors and two regions, one of which includes a forest, is developed.
It analyses how an exogenous increase in the ethanol price affects input allocation (land and labor) between sectors (energy
crop and food). The total effect of ethanol prices on food production and deforestation is decomposed into three partial effects.
First, the well-documented effect of direct land competition between rival uses arises; it increases deforestation and decreases
food production. Second, an indirect displacement of food production across regions, possibly provoked by the reaction of
international food prices, increases deforestation and reduces the food sector’s output. Finally, labor mobility between sectors
and regions tends to decrease food production but also deforestation. The total impact of ethanol production on food production
is negative while there is an ambiguous impact on deforestation. |
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