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Contesting fake news

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  • Daniel Rehsmann
  • B'eatrice Roussillon
  • Paul Schweinzer

Abstract

We model competition on a credence goods market governed by an imperfect label, signaling high quality, as a rank-order tournament between firms. In this market interaction, asymmetric firms jointly and competitively control the aggregate precision of a label ranking the competitors' qualities by releasing individual information. While the labels and the aggregated information they are based on can be seen as a public good guiding the consumers' purchasing decisions, individual firms have incentives to strategically amplify or counteract the competitors' information emission, thereby manipulating the aggregate precision of product labeling, i.e., the underlying ranking's discriminatory power. Elements of the introduced theory are applicable to several (credence-good) industries that employ labels or rankings, including academic departments, ``green'' certification, movies, and investment opportunities.

Suggested Citation

  • Daniel Rehsmann & B'eatrice Roussillon & Paul Schweinzer, 2025. "Contesting fake news," Papers 2508.19837, arXiv.org.
    • Handle: RePEc:arx:papers:2508.19837
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    1. Jean Tirole, 1988. "The Theory of Industrial Organization," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262200716, December.
    2. Yongmin Chen & Jianpei Li & Jin Zhang, 2022. "Efficient Liability In Expert Markets," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 63(4), pages 1717-1744, November.
    3. Balafoutas, Loukas & Kerschbamer, Rudolf, 2020. "Credence goods in the literature: What the past fifteen years have taught us about fraud, incentives, and the role of institutions," Journal of Behavioral and Experimental Finance, Elsevier, vol. 26(C).
    4. Lang, Matthias, 2019. "Communicating subjective evaluations," Journal of Economic Theory, Elsevier, vol. 179(C), pages 163-199.
    5. Ian M. Sheldon, 2017. "Certification Mechanisms for Credence Attributes of Foods: Does It Matter Who Provides Diagnosis?," Annual Review of Resource Economics, Annual Reviews, vol. 9(1), pages 33-51, October.
    6. Olivier Bonroy & Christos Constantatos, 2015. "On the Economics of Labels: How Their Introduction Affects the Functioning of Markets and the Welfare of All Participants," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 97(1), pages 239-259.
    7. Darby, Michael R & Karni, Edi, 1973. "Free Competition and the Optimal Amount of Fraud," Journal of Law and Economics, University of Chicago Press, vol. 16(1), pages 67-88, April.
    8. Ewerhart, Christian, 2017. "Revenue ranking of optimally biased contests: The case of two players," Economics Letters, Elsevier, vol. 157(C), pages 167-170.
    9. Che, Yeon-Koo & Gale, Ian, 2000. "Difference-Form Contests and the Robustness of All-Pay Auctions," Games and Economic Behavior, Elsevier, vol. 30(1), pages 22-43, January.
    10. Uwe Dulleck & Rudolf Kerschbamer, 2006. "On Doctors, Mechanics, and Computer Specialists: The Economics of Credence Goods," Journal of Economic Literature, American Economic Association, vol. 44(1), pages 5-42, March.
    11. Ulrich Lehmann-Grube, 1997. "Strategic Choice of Quality When Quality is Costly: The Persistence of the High-Quality Advantage," RAND Journal of Economics, The RAND Corporation, vol. 28(2), pages 372-384, Summer.
    12. P. Milgrom, 2009. "What the Seller Wont Tell You: Persuasion and Disclosure in Markets," Voprosy Ekonomiki, NP Voprosy Ekonomiki, issue 3.
    13. Soham Baksi & Pinaki Bose & Di Xiang, 2017. "Credence Goods, Misleading Labels, and Quality Differentiation," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 68(2), pages 377-396, October.
    14. John K.‐H. Quah & Bruno Strulovici, 2012. "Aggregating the Single Crossing Property," Econometrica, Econometric Society, vol. 80(5), pages 2333-2348, September.
    15. Ian M. Sheldon, 2017. "Certification Mechanisms for Credence Attributes of Foods: Does It Matter Who Provides Diagnosis?," Annual Review of Economics, Annual Reviews, vol. 9(1), pages 33-51, October.
    16. Robert Michaels, 1988. "The design of rent-seeking competitions," Public Choice, Springer, vol. 56(1), pages 17-29, January.
    17. Dasgupta, Ani & Nti, Kofi O., 1998. "Designing an optimal contest," European Journal of Political Economy, Elsevier, vol. 14(4), pages 587-603, November.
    18. Mas-Colell, Andreu & Whinston, Michael D. & Green, Jerry R., 1995. "Microeconomic Theory," OUP Catalogue, Oxford University Press, number 9780195102680.
    19. Bizzotto, Jacopo & Harstad, Bård, 2023. "The certifier for the long run," International Journal of Industrial Organization, Elsevier, vol. 87(C).
    20. Lawrence J. White, 2018. "The Credit Rating Agencies and Their Role in the Financial System," Working Papers 18-12, New York University, Leonard N. Stern School of Business, Department of Economics.
    21. Bruckner, Dominik & Sahm, Marco, 2023. "Party Politics: A Contest Perspective," VfS Annual Conference 2023 (Regensburg): Growth and the "sociale Frage" 277714, Verein für Socialpolitik / German Economic Association.
    22. Wang Zhewei, 2010. "The Optimal Accuracy Level in Asymmetric Contests," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 10(1), pages 1-18, April.
    23. Faruk Gul & Wolfgang Pesendorfer, 2012. "The War of Information," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 79(2), pages 707-734.
      • Gul, Faruk & Pesendorfer, Wolfgang, 2010. "The War of Information," Papers 9-13-2010, Princeton University, Research Program in Political Economy.
    24. Economides, Nicholas, 1986. "Minimal and maximal product differentiation in Hotelling's duopoly," Economics Letters, Elsevier, vol. 21(1), pages 67-71.
    25. Bergès-Sennou Fabian & Bontems Philippe & Réquillart Vincent, 2004. "Economics of Private Labels: A Survey of Literature," Journal of Agricultural & Food Industrial Organization, De Gruyter, vol. 2(1), pages 1-25, February.
    26. Francisco Scott & Juan P. Sesmero, 2022. "Market and welfare effects of quality misperception in food labels," American Journal of Agricultural Economics, John Wiley & Sons, vol. 104(5), pages 1747-1769, October.
    27. Brian Roe & Ian Sheldon, 2007. "Credence Good Labeling: The Efficiency and Distributional Implications of Several Policy Approaches," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 89(4), pages 1020-1033.
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