Journal of Economic Theory 145 (2):562-582 (2010)

Authors
Philippe Mongin
Centre National de la Recherche Scientifique
Franz Dietrich
Centre National de la Recherche Scientifique
Abstract
In the framework of judgment aggregation, we assume that some formulas of the agenda are singled out as premisses, and that both Independence (formula-wise aggregation) and Unanimity Preservation hold for them. Whether premiss-based aggregation thus defined is compatible with conclusion-based aggregation, as defined by Unanimity Preservation on the non-premisses, depends on how the premisses are logically connected, both among themselves and with other formulas. We state necessary and sufficient conditions under which the combination of both approaches leads to dictatorship (resp. oligarchy), either just on the premisses or on the whole agenda. This framework is inspired by the doctrinal paradox of legal theory and arguably relevant to this field as well as political science and political economy. When the set of premisses coincides with the whole agenda, a limiting case of our assumptions, we obtain several existing results in judgment aggregation theory.
Keywords Judgment Aggregation  Logical Aggregation  Premiss-Based Approach  Conclusion-Based Approach  General Logic  characterization of premise-based rules
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References found in this work BETA

Deliberative Democracy and the Discursive Dilemma.Philip Pettit - 2001 - Philosophical Issues 11 (1):268-299.
Arrow's Theorem in Judgment Aggregation.Franz Dietrich & Christian List - 2007 - Social Choice and Welfare 29 (1):19-33.
Logical Constraints on Judgement Aggregation.Marc Pauly & Martin van Hees - 2006 - Journal of Philosophical Logic 35 (6):569 - 585.
A Generalised Model of Judgment Aggregation.Franz Dietrich - 2007 - Social Choice and Welfare 4 (28):529-565.

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Citations of this work BETA

Social Choice Theory.Christian List - 2013 - Stanford Encyclopedia of Philosophy.

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