Discounting and relative prices in assessing future environmental damages
AbstractEnvironmentalists are often upset at the effect of discounting costs of future environmental damage, e.g. due to climate change. An often overlooked message is that we should discount costs but also take into account the increase in the relative price of the ecosystem service endangered. The effect of discounting would thus be counteracted, and if the rate of price rise of the item was fast enough it might even be reversed. The scarcity that leads to rising relative prices for the environmental good will also have direct effects on the discount rate itself. The magnitude of these effects depends on properties of the economy’s technology and on social preferences. We develop a simple model of the economy that illustrates how changes in crucial technology and preference parameters may affect both the discount rate and the rate of change of values of environmental goods. The combined effect of discounting and the change of values of environmental goods is more likely to be low, or even negative, the lower is the growth rate of environmental quality (or the larger its decline rate) and the lower is the elasticity of substitution between environmental quality and produced goods.
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Bibliographic InfoPaper provided by University of Gothenburg, Department of Economics in its series Working Papers in Economics with number 199.
Length: 23 pages
Date of creation: 16 Mar 2006
Date of revision:
Publication status: Published in Climatic Change, 2007, pages 265-280.
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Postal: Department of Economics, School of Business, Economics and Law, University of Gothenburg, Box 640, SE 405 30 GÖTEBORG, Sweden
Phone: 031-773 10 00
Web page: http://www.handels.gu.se/econ/
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Discounting; future costs; scarcity; environment; climate change;
Find related papers by JEL classification:
- H43 - Public Economics - - Publicly Provided Goods - - - Project Evaluation; Social Discount Rate
- Q32 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Nonrenewable Resources and Conservation - - - Exhaustible Resources and Economic Development
- Q54 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Climate; Natural Disasters
This paper has been announced in the following NEP Reports:
- NEP-ALL-2006-04-22 (All new papers)
- NEP-ENE-2006-04-22 (Energy Economics)
- NEP-PBE-2006-04-22 (Public Economics)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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