On the macro-economic impacts of climate change under cognitive limitations

Alexandre Gohin and Ruixuan Cao

No 332521, Conference papers from Purdue University, Center for Global Trade Analysis, Global Trade Analysis Project

Abstract: Although the sources, extent and physical impacts of the future climate change are highly uncertain, available dynamic economic assessments implicitly assume that economic agents perfectly know them. Perfect foresight, rational expectations or active learning are standard assumptions underlying simulated results. To the contrary, this paper builds on the assumption that economic agents may suffer for a while from limited knowledge about the average and variability of physical impacts of climate change. Using a world dynamic and stochastic general equilibrium model, our simulation results show that identifying the average physical impact is much more crucial than its variability. This finding is robust to the level of risk aversion of economic agents. The rate of pure time preference of economic agents more significantly affects the economic impacts. Because we exclude exogenous economic growth, we find that it is better to learn earlier the physical impacts of the climate change.

Keywords: Environmental Economics and Policy; Research Methods/Statistical Methods (search for similar items in EconPapers)
Pages: 24
Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:ags:pugtwp:332521

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