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Judgement aggregation and distributed thinking

Spiekermann, Kai (2013) Judgement aggregation and distributed thinking. In: Cowley, Stephen J. and Vallée-Tourangeau, Frédéric, (eds.) Cognition Beyond the Brain: Computation, Interactivity and Human Artifice. Springer London, London, UK, pp. 31-51. ISBN 9781447151241

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Identification Number: 10.1007/978-1-4471-5125-8_3

Abstract

In recent years, judgement aggregation has emerged as an important area of social choice theory. Judgement aggregation is concerned with aggregating sets of individual judgements over logically connected propositions into a set of collective judgements. It has been shown that even seemingly weak conditions on the aggregation function render it impossible to find functions that produce rational collective judgements from all possible rational individual judgements. This implies that the step from individual judgements to collective judgements requires trade-offs between different desiderata, such as universal domain, rationality, epistemological quality, and unbiasedness. These dilemmas challenge us to decide which conditions we should relax. The typical application for judgement aggregation is the problem of group decision making, with juries and expert committees as stock examples. However, the relevance of judgement aggregation goes beyond these cases. In this survey I review some core results in the field of judgement aggregation and social epistemology and discuss their implications for the analysis of distributed thinking.

Item Type: Book Section
Official URL: http://www.springer.com/
Additional Information: © 2013 Springer-Verlag London
Divisions: Government
Subjects: B Philosophy. Psychology. Religion > BF Psychology
J Political Science > JC Political theory
Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Sets: Departments > Government
Date Deposited: 17 Jul 2014 13:48
Last Modified: 20 Feb 2019 06:09
URI: http://eprints.lse.ac.uk/id/eprint/57978

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