Heterogeneous anchoring and the shift effect in iterative valuation questions

Stephane Luchini (), Frédéric Aprahamian () and Olivier CHANEL
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Stephane Luchini: GREQAM - Groupement de Recherche en Économie Quantitative d'Aix-Marseille - Université de la Méditerranée - Aix-Marseille II - Université Paul Cézanne - Aix-Marseille III - Ecole des Hautes Etudes en Sciences Sociales - CNRS : UMR6579, IDEP - Institut d'Économie Publique - GREQAM
Frédéric Aprahamian: GREQAM - Groupement de Recherche en Économie Quantitative d'Aix-Marseille - Université de la Méditerranée - Aix-Marseille II - Université Paul Cézanne - Aix-Marseille III - Ecole des Hautes Etudes en Sciences Sociales - CNRS : UMR6579, Université du Sud - UFR de Sciences Economiques

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Abstract: In this article, we consider starting point bias as a heterogeneous phenomenon, that is, respondents in CV surveys do not anchor in the sameway. We study the consequences of a mistaken assumption of homogeneous anchoring for the analysis of the shift effect in multiple-bounded dichotomous choice format, when respondents really have heterogeneous anchoring. We show that the shift effect, generally interpreted as incentive incompatibility or “yea”-saying, can be the spurious outcome of disregarded heterogeneous anchoring.

Keywords: Contingent Valuation; Heterogeneous Anchoring; Starting Point Bias; Incentive Incompatibility; Yea-Saying (search for similar items in EconPapers)
Date: 2006
Note: View the original document on HAL open archive server: http://halshs.archives-ouvertes.fr/halshs-00409676/en/
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Journal Article: Heterogeneous anchoring and the shift effect in iterative valuation questions (2008)
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