Miguel Ballester

Séminaires généraux
amse seminar

Miguel Ballester

University of Oxford
The Rationalizability of Survey Responses
Co-écrit avec
Jose Apesteguia

IBD Amphi

Îlot Bernard du Bois - Amphithéâtre

5-9 boulevard Maurice Bourdet
13001 Marseille

Lundi 11 septembre 2023| 11:30 - 12:45

Nicolas Clootens : nicolas.clootens[at]univ-amu.fr
Romain Ferrali : romain.ferrali[at]univ-amu.fr


We propose and study the notion of survey rationalizability. In the simplest case of dichotomous attitudinal surveys, survey rationalizability means that both questions and ideal views of individuals can be located in the real line in a way that individuals endorse questions corresponding to the upper contour set of their strictly quasi-concave utility. We show how the relative location of questions can be learnt using a revelation mechanism that involves pairs of individuals and triplets of questions, and that the acyclicity of these revelations suffices for rationalizability. We then show that our analysis readily extends to the cases of polytomous surveys and of probabilistic data. We further study the identification of the main parameters of these models and show that, in an exponential version of the probabilistic model, even the cardinal locations can be fully determined. We conclude by studying an alternative model of survey responses for aptitudes.