Equitable cost-benefit analysis of climate change policies

Tol, Richard S J (2001) Equitable cost-benefit analysis of climate change policies. Ecological Economics, 36 (1). pp. 71-85. ISSN 0921-8009

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The literature of welfare-maximising greenhouse gas emission reduction strategies pays remarkably little attention to equity. This paper introduces three ways to consider efficiency and equity simultaneously. The first method, inspired by Kant and Rawls, maximises net present welfare, without international cooperation, as if all regions share the fate of the region affected worst by climate change. Optimal emission abatement varies greatly depending on the spatial and temporal resolution, that is, the grid at which 'maximum impact' is defined. The second method is inspired by Varian's no-envy. Emissions are reduced so as to equalise total costs and benefits of climate change over all countries of the world and over all time periods. Emission reductions are substantial. This method approximately preserves the inequities that would occur in a world without climate change. The third method uses non-linear aggregations of welfare (the utilitarian default is linear) in a cooperative setting. This method cannot distinguish between sources of inequity. The higher the aversion to inequity, the higher optimal greenhouse gas emission reduction.

Item Type: Article
Schools and Departments: University of Sussex Business School > Economics
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences > GE170 Environmental policy
H Social Sciences > HB Economic theory. Demography
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Depositing User: Richard Tol
Date Deposited: 19 Apr 2012 11:57
Last Modified: 19 Apr 2012 11:57
URI: http://sro.sussex.ac.uk/id/eprint/38373
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