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Group deliberation and the transformation of judgments: an impossibility result

List, Christian ORCID: 0000-0003-1627-800X (2007) Group deliberation and the transformation of judgments: an impossibility result. PSPE working papers (04-2007). Department of Government, London School of Economics and Political Science, London, UK.

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While a large social-choice-theoretic literature discusses the aggregation of individual judgments into collective ones, there is relatively little formal work on the transformation of individual judgments in group deliberation. I develop a model of judgment transformation and prove a baseline impossibility result: Any judgment transformation function satisfying some initially plausible conditions is the identity function, under which no opinion change occurs. I identify escape routes from this impossibility result and argue that successful group deliberation must be 'holistic': individuals cannot generally revise their judgments on a proposition based on judgments on that proposition alone but must take other propositions into account too. I discuss the signi…cance of these …ndings for democratic theory.

Item Type: Monograph (Working Paper)
Official URL:
Additional Information: © 2007 The Author
Divisions: Government
Philosophy, Logic and Scientific Method
Subjects: J Political Science > JC Political theory
Date Deposited: 11 Sep 2009 15:29
Last Modified: 15 Sep 2023 23:09

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