Belief elicitation: A horse race among truth serums

Research output: Contribution to journalArticleScientificpeer-review

70 Citations (Scopus)


We pit non-incentivised introspection against five revealed preference mechanisms (‘truth serums’) in the elicitation of beliefs in a simple two-player game. We measure the additivity, the predictive power for own behaviour and the accuracy of each method. Beliefs from incentivised methods are better predictors of participants' own behaviour compared to introspection. However, introspection performs equally well as the truth serums in terms of accuracy and additivity. We also find that correction for risk aversion improves the additivity of scoring rule belief reports.
Original languageEnglish
Pages (from-to)2116-2135
JournalEconomic Journal
Issue number589
Early online date12 Sept 2014
Publication statusPublished - Dec 2015


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