Possibility Theorems for Equitably Aggregating Infinite Utility Streams

Kaushik Basu and Tapan Mitra

Chapter 5 in Intergenerational Equity and Sustainability, 2007, pp 69-84 from Palgrave Macmillan

Abstract: Abstract The need to aggregate and evaluate infinite streams of returns or utility arises in several areas of economics, ranging from intergenerational welfare theory to environmental economics. The subject of intergenerational equity in the context of aggregating infinite utility streams has been of enduring interest to economists, starting with the work of Ramsey (1928), who had maintained that discounting one generation’s utility or income vis-à-vis another’s to be ‘ethically indefensible’, and something that ‘arises merely from the weakness of the imagination.’ His conjecture about the difficulty of aggregating infinite streams, while respecting intergenerational equity, turned out to be compelling, as a large number of impossibility theorems were proved subsequently by a number of authors, starting with the seminal works of Koopmans (1960) and Diamond (1965).

Keywords: Social Welfare Function; Domain Restriction; Impossibility Result; Impossibility Theorem; Intergenerational Equity (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1057/9780230236769_5

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