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Deliberation, Single-Peakedness, and Coherent Aggregation

Title data

Roy, Olivier ; Rafiee Rad, Soroush:
Deliberation, Single-Peakedness, and Coherent Aggregation.
In: American Political Science Review. (2020) .
ISSN 1537-5943

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

Rational deliberation helps to avoid cyclic or intransitive group preferences by fostering meta-agreements, which in turn ensures single-peaked profiles. This is the received view, but this paper argues that it should be qualified. On the one hand we provide evidence from computational simulations that rational deliberation tend to increase proximity to so-called single-plateaued preferences. This evidence is important to the extend that, as we argue, the idea that rational deliberation fosters the creation of meta-agreement and, in turn, single-peaked profiles does not carry over to single-plateaued ones, and the latter but not the former makes coherent aggregation possible when the participants are allowed to express indifference between
options. On the other hand, however, our computational results show, against the received view, that when the participants are strongly biased towards their own
opinions, rational deliberation tends to create irrational group preferences, instead of eliminating them. These results are independent of whether the participants reach
meta-agreements in the process, and as such highlight the importance of rational preference change and biases towards one’s own opinion in understanding the effects of rational deliberation.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Cultural Studies > Department of Philosophy
Faculties > Faculty of Cultural Studies > Department of Philosophy > Chair Philosophy I
Faculties > Faculty of Cultural Studies > Department of Philosophy > Chair Philosophy I > Chair Philosophy I - Univ.-Prof. Dr. Olivier Roy
Result of work at the UBT: Yes
DDC Subjects: 100 Philosophy and psychology > 100 Philosophy
100 Philosophy and psychology > 170 Ethics
300 Social sciences > 320 Political science
Date Deposited: 07 Dec 2020 11:11
Last Modified: 07 Dec 2020 11:11
URI: https://eref.uni-bayreuth.de/id/eprint/60800