Attitude polarization


Zimper, Alexander ; Ludwig, Alexander


[img]
Preview
PDF
meadp_155_07.pdf - Published

Download (357kB)

URL: https://ub-madoc.bib.uni-mannheim.de/1861
URN: urn:nbn:de:bsz:180-madoc-18612
Document Type: Working paper
Year of publication: 2007
The title of a journal, publication series: MEA Discussion Papers
Volume: 155
Place of publication: Mannheim
Publication language: English
Institution: Außerfakultäre Einrichtungen > Mannheim Research Institute for the Economics of Aging (MEA) (- 6/2011) (Börsch-Supan) (Börsch-Supan)
MADOC publication series: Veröffentlichungen des MEA (Mannheim Research Institute For the Economics of Aging) > MEA Discussion Papers
Subject: 300 Social sciences, sociology, anthropology
Classification: JEL: C79 D83 ,
Subject headings (SWD): Bayes-Lernen , Choquet-Theorie , Eingeschränkte Rationalität
Keywords (English): Non-additive Prohability Measures , Choquet Expected Utility Theory , Bayesian Learning , Bounded Rationality
Abstract: Psychological evidence suggests that people's learning behavior is often prone to a "myside bias" or "irrational belief persistence" in contrast to learning behavior exclusively based on objective data. In the context of Byesian learning such a bias may result in diverging posterior beliefs and attitude polarization even if agents receive identical information. Such patterns cannot be explained by the standard model of rational Bayesian learning that implies convergent beliefs. As our key contribution, we therefore develop formal models of Bayesian learning. We derive conditions under which beliefs may diverge in the learning process and thus conform wiht the psychological evidence. Key to our approach is the assuption of ambiguous beliefs that are fomalized as non-additive probability measures arising in Choquet expected utility theory. As a specific feature of our approach, our models of Bayesian learning with psychological bias reduce to rational Bayesian learning in the absence of ambiguity.

Dieser Eintrag ist Teil der Universitätsbibliographie.

Das Dokument wird vom Publikationsserver der Universitätsbibliothek Mannheim bereitgestellt.




+ Citation Example and Export

Zimper, Alexander ; Ludwig, Alexander (2007) Attitude polarization. Open Access MEA Discussion Papers Mannheim 155 [Working paper]
[img]
Preview


+ Search Authors in

+ Download Statistics

Downloads per month over past year

View more statistics



You have found an error? Please let us know about your desired correction here: E-Mail


Actions (login required)

Show item Show item