Sustainable growth in a model with dual-rate discounting
In an important model of growth and pollution proposed by Stokey [Int. Econ. Rev. 39 (1998) 1] neither the rate of economic growth nor the rate of growth of emissions depends on the time preference of the representative agent, which seems somewhat paradoxical. To resolve this paradox, we introduce into Stokey's model the assumption of dual-rate discounting, prove the existence of a sustainable balanced growth optimal path, and show that the growth rates of output and emissions are increasing in the proportion between the consumption and the environmental discount factors of the representative agent.
|Date of creation:||07 Mar 2011|
|Date of revision:||10 Mar 2011|
|Publication status:||Published in Economic Modelling 28 (2011) 2071–2074|
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- Saez, Carmen Almansa & Requena, Javier Calatrava, 2007. "Reconciling sustainability and discounting in Cost-Benefit Analysis: A methodological proposal," Ecological Economics, Elsevier, vol. 60(4), pages 712-725, February.
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- Stokey, Nancy L, 1998. "Are There Limits to Growth?," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 39(1), pages 1-31, February.
- Weikard, Hans-Peter & Zhu, Xueqin, 2005. "Discounting and environmental quality: When should dual rates be used?," Economic Modelling, Elsevier, vol. 22(5), pages 868-878, September.
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