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Social and Behavioral Sciences Commons

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Yale University

Cowles Foundation Discussion Papers

Series

2009

Climate change

Articles 1 - 2 of 2

Full-Text Articles in Social and Behavioral Sciences

The Ethics Of Distribution In A Warming Planet, John E. Roemer Apr 2009

The Ethics Of Distribution In A Warming Planet, John E. Roemer

Cowles Foundation Discussion Papers

The discounted-utilitarian social welfare function (DU) is used by the great majority of researchers studying intergenerational resource allocation in the presence of climate change (e.g., W. Nordhaus, M. Weitzman, N. Stern, and P. Dasgupta). I present three justifications for using DU: (1) the view that the first generation’s preferences should be hegemonic, (2) the viewpoint of a utilitarian Ethical Observer who maximizes expected utility when the existence of future generations is uncertain, and (3) axiomatic justifications (as in classical social-choice theory). I argue that only justification (2) provides an ethically convincing justification, and that, only if one endorses utilitarianism as …


An Analysis Of The Dismal Theorem, William D. Nordhaus Jan 2009

An Analysis Of The Dismal Theorem, William D. Nordhaus

Cowles Foundation Discussion Papers

In a series of papers, Martin Weitzman has proposed a Dismal Theorem. The general idea is that, under limited conditions concerning the structure of uncertainty and preferences, society has an indefinitely large expected loss from high-consequence, low-probability events. Under such conditions, standard economic analysis cannot be applied. The present study is intended to put the Dismal Theorem in context and examine the range of its applicability, with an application to catastrophic climate change. I conclude that Weitzman makes an important point about selection of distributions in the analysis of decision-making under uncertainty. However, the conditions necessary for the Dismal Theorem …