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In this paper, the authors’ treatment of uncertainty in environmental applications is motivated by two leading examples: climate change and biodiversity loss. They argue that in these cases uncertainty is sufficiently far-reaching that standard decision-making tools such as expected utility theory may no longer capture important aspects of our uncertainty preferences. Richer models of decision-making, which allow us to express lack of confidence in our information, may be more desirable. Read more

Since Nicholas Stern published his influential 'Review on the Economics of Climate Change' for the British government in 2006, economists have become increasingly interested in how the value of climate policy, especially the reduction of greenhouse gas emissions at the global level, depends on risk and uncertainty. New lines of research make the case that mitigating climate change is above all an exercise in catastrophic risk management. Read more

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