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Incentives, Search Engines, and the Elicitation of Subjective Beliefs: Evidence From Representative Online Survey Experiments

Author

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  • Grewenig, Elisabeth

    (ifo Institute)

  • Lergetporer, Philipp

    (ifo Institute)

  • Werner, Katharina

    (ifo Institute)

  • Woessmann, Ludger

    (ifo Institute and LMU Munich)

Abstract

A large literature studies subjective beliefs about economic facts using unincentivized survey questions. We devise randomized experiments in a representative online survey to investigate whether incentivizing belief accuracy affects stated beliefs about average earnings by professional degree and average public school spending. Incentive provision does not impact earnings beliefs, but improves school-spending beliefs. Response patterns suggest that the latter effect likely reflects increased online-search activity. Consistently, an experiment that just encourages search-engine usage produces very similar results. Another experiment provides no evidence of experimenter-demand effects. Overall, results suggest that incentive provision does not reduce bias in our survey-based belief measures.

Suggested Citation

  • Grewenig, Elisabeth & Lergetporer, Philipp & Werner, Katharina & Woessmann, Ludger, 2019. "Incentives, Search Engines, and the Elicitation of Subjective Beliefs: Evidence From Representative Online Survey Experiments," Rationality and Competition Discussion Paper Series 146, CRC TRR 190 Rationality and Competition.
    • Handle: RePEc:rco:dpaper:146
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    3. Starkov, Egor, 2023. "Only time will tell: Credible dynamic signaling," Journal of Mathematical Economics, Elsevier, vol. 109(C).
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    5. Juerg Schweri, 2021. "Predicting polytomous career choices in healthcare using probabilistic expectations data," Health Economics, John Wiley & Sons, Ltd., vol. 30(3), pages 544-563, March.
    6. Angerer, Silvia & Glätzle-Rützler, Daniela & Lergetporer, Philipp & Rittmannsberger, Thomas, 2024. "Beliefs about social norms and gender-based polarization of COVID-19 vaccination readiness," European Economic Review, Elsevier, vol. 163(C).
    7. Brad R. Taylor, 2020. "The psychological foundations of rational ignorance: biased heuristics and decision costs," Constitutional Political Economy, Springer, vol. 31(1), pages 70-88, March.
    8. Burdea, Valeria & Woon, Jonathan, 2022. "Online belief elicitation methods," Journal of Economic Psychology, Elsevier, vol. 90(C).
    9. Dietmar Fehr & Johanna Mollerstrom & Ricardo Perez-Truglia, 2022. "Your Place in the World: Relative Income and Global Inequality," American Economic Journal: Economic Policy, American Economic Association, vol. 14(4), pages 232-268, November.
    10. Freundl Vera & Grewenig Elisabeth & Kugler Franziska & Lergetporer Philipp & Schüler Ruth & Wedel Katharina & Werner Katharina & Wirth Olivia & Woessmann Ludger, 2023. "The ifo Education Survey 2014–2021: A New Dataset on Public Preferences for Education Policy in Germany," Journal of Economics and Statistics (Jahrbuecher fuer Nationaloekonomie und Statistik), De Gruyter, vol. 243(6), pages 699-710, December.
    11. Patrick Bareinz & Fabian Koenings, 2021. "Framing of Economic News and Policy Support During a Pandemic: Evidence from an Information Experiment," Jena Economics Research Papers 2021-004, Friedrich-Schiller-University Jena.
    12. Chantal Pezold & Simon Jäger & Patrick Nüss, 2023. "Labor Market Tightness and Union Activity," NBER Working Papers 31988, National Bureau of Economic Research, Inc.
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    More about this item

    Keywords

    beliefs; incentives; online search; survey experiment;
    All these keywords.

    JEL classification:

    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • C83 - Mathematical and Quantitative Methods - - Data Collection and Data Estimation Methodology; Computer Programs - - - Survey Methods; Sampling Methods
    • C90 - Mathematical and Quantitative Methods - - Design of Experiments - - - General

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