Expectation Formation and Social Influence

Andreas Karpf ()
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Andreas Karpf: CES - Centre d'économie de la Sorbonne - UP1 - Université Paris 1 Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique, Axe Economie mathématique et jeux - CES - Centre d'économie de la Sorbonne - UP1 - Université Paris 1 Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique - PSE - Paris School of Economics - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École nationale des ponts et chaussées - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement

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Abstract: This article investigate the role of social influence for the expectation formation of economic agents. Using self-organizing Kohonen maps the repeated cross-section data set of the University of Michigan consumer survey is transformed into a pseudo panel allowing to monitor the expectation formation of cohorts with regard to business confidence over the whole available time span (January 1978 - June 2013). Subsequently the information theoretic concept of transfer entropy is used to reveal the role of social influence on the expectation formation as well as the underlying network structure. It is shown that social influence strongly depends on socio-demographic characteristics and also coincides with a high degree of connectivity. The social network estimated in this way follows a power-law and thus exhibits similar structure as networks observed in other contexts.

Keywords: Social networks; expectations; household survey; Réseau social; anticipations; enquête auprès des ménages (search for similar items in EconPapers)
Date: 2014-02
New Economics Papers: this item is included in nep-cdm and nep-soc
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Published in 2014

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:halshs-00951588

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