Judgment aggregation: A short introduction
In Uskali Mäki (ed.), Handbook of the Philosophy of Economics. Elsevier (2012)
Abstract
The aim of this article is to introduce the theory of judgment aggregation, a growing interdisciplinary research area. The theory addresses the following question: How can a group of individuals make consistent collective judgments on a given set of propositions on the basis of the group members' individual judgments on them? I begin by explaining the observation that initially sparked the interest in judgment aggregation, the so-called "doctinal" and "discursive paradoxes". I then introduce the basic formal model of judgment aggregation, which allows me to present some illustrative variants of a generic impossibility result. I subsequently turn to the question of how this impossibility result can be avoided, going through several possible escape routes. Finally, I relate the theory of judgment aggregation to other branches of aggregation theory. Rather than offering a comprehensive survey of the theory of judgment aggregation, I hope to introduce the theory in a succinct and pedagogical way, providing an illustrative rather than exhaustive coverage of some of its key ideas and results.Author's Profile
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2008
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Citations of this work
The aggregation of propositional attitudes: Towards a general theory.Franz Dietrich & Christian List - 2010 - Oxford Studies in Epistemology 3.
Collective Wisdom: Lessons from the Theory of Judgment Aggregation.Christian List - 2012 - In Helene Landemore & Jon Elster (eds.), Collective Wisdom: Principles and Mechanisms. Cambridge University Press.
The Aggregation of Propositional Attitudes: Towards a General Theory.Franz Dietrich & List & Christian - 2010 - In Tamar Szabó Gendler & John Hawthorne (eds.), Oxford Studies in Epistemology Volume 3. Oxford University Press. pp. 215-234.
References found in this work
Aggregating sets of judgments: An impossibility result.Christian List & Philip Pettit - 2002 - Economics and Philosophy 18 (1):89-110.
Deliberative Democracy and the Discursive Dilemma.Philip Pettit - 2001 - Philosophical Issues 11 (1):268-299.
Aggregating sets of judgments: Two impossibility results compared.Christian List & Philip Pettit - 2004 - Synthese 140 (1-2):207 - 235.