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The deterrence effect of whistleblowing

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  • Niels Johannesen

    (Department of Economics, University of Copenhagen)

  • Tim B.M. Stolper

    (Department of Public Economics, University of Munich)

Abstract

We document that the first leak of customer information from a tax haven bank caused a signifficant decrease in the market value of Swiss banks known to be assisting with tax evasion and that the decrease was largest for the banks most strongly involved. These findings suggest that markets expected the leak to increase the perceived risk of committing and assisting with tax evasion and thus to lower both demand and supply in the market for criminal offshore banking services. This interpretation finds support in further evidence that the leak caused a sharp drop in foreign-owned deposits in tax havens.

Suggested Citation

  • Niels Johannesen & Tim B.M. Stolper, 2017. "The deterrence effect of whistleblowing," EPRU Working Paper Series 17-01, Economic Policy Research Unit (EPRU), University of Copenhagen. Department of Economics.
    • Handle: RePEc:kud:epruwp:17-01
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    References listed on IDEAS

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    8. Dominika Langenmayr, 2017. "Voluntary Disclosure of Evaded Taxes—Increasing Revenue, or Increasing Incentives to Evade?," NBER Chapters, in: Personal Income Taxation and Household Behavior (TAPES), National Bureau of Economic Research, Inc.
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    11. Niels Johannesen & Gabriel Zucman, 2014. "The End of Bank Secrecy? An Evaluation of the G20 Tax Haven Crackdown," American Economic Journal: Economic Policy, American Economic Association, vol. 6(1), pages 65-91, February.
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    Cited by:

    1. Menkhoff, Lukas & Miethe, Jakob, 2019. "Tax evasion in new disguise? Examining tax havens' international bank deposits," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 176, pages 53-78.
    2. Laila Ait Bihi Ouali, 2019. "Top Income Tax Evasion and Redistribution Preferences: Evidence from the Panama Papers," Working Papers halshs-01978131, HAL.
    3. Niels Johannesen & Daniel Reck & Max Risch & Joel Slemrod & John Guyton & Patrick Langetieg, 2023. "The Offshore World According to FATCA: New Evidence on the Foreign Wealth of US Households," NBER Chapters, in: Tax Policy and the Economy, Volume 38, National Bureau of Economic Research, Inc.
    4. Bastani, Spencer & Waldenström, Daniel, 2018. "How Should Capital Be Taxed? Theory and Evidence from Sweden," IZA Discussion Papers 11475, Institute of Labor Economics (IZA).
    5. Alstadsæter, Annette & Johannesen, Niels & Le Guern Herry, Ségal & Zucman, Gabriel, 2022. "Tax evasion and tax avoidance," Journal of Public Economics, Elsevier, vol. 206(C).
    6. Theo Nyreröd & Giancarlo Spagnolo, 2021. "Myths and numbers on whistleblower rewards," Regulation & Governance, John Wiley & Sons, vol. 15(1), pages 82-97, January.
    7. Alejandro Esteller-Moré & Shafik Hebous & Niels Johannesen & Katarzyna Anna Bilicka, 2018. "The Present and Future of Tax Havens / El presente y futuro de los paraísos fiscales / El present i futur dels paradisos fiscals," IEB Reports ieb_report_4_2018, Institut d'Economia de Barcelona (IEB).
    8. Spencer Bastani & Daniel Waldenström, 2018. "How should capital be taxed? The Swedish experience," World Inequality Lab Working Papers hal-02878153, HAL.
    9. Vincent Bouvatier & Gunther Capelle-Blancard & Anne-Laure Delatte, 2017. "Banks Defy Gravity in Tax Havens," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) hal-03101505, HAL.
    10. Laila Ait Bihi Ouali, 2020. "Effects of signalling tax evasion on redistribution and voting preferences: Evidence from the Panama Papers," PLOS ONE, Public Library of Science, vol. 15(3), pages 1-22, March.
    11. Annette Alstadsæter & Niels Johannesen & Gabriel Zucman, 2019. "Tax Evasion and Inequality," American Economic Review, American Economic Association, vol. 109(6), pages 2073-2103, June.
    12. Niels Johannesen & Patrick Langetieg & Daniel Reck & Max Risch & Joel Slemrod, 2020. "Taxing Hidden Wealth: The Consequences of US Enforcement Initiatives on Evasive Foreign Accounts," American Economic Journal: Economic Policy, American Economic Association, vol. 12(3), pages 312-346, August.
    13. Batten, Jonathan A. & Lončarski, Igor & Szilagyi, Peter G., 2021. "Strategic insider trading in foreign exchange markets," Journal of Corporate Finance, Elsevier, vol. 69(C).
    14. Nyreröd, Theo & Spagnolo, Giancarlo, 2017. "Myths and Numbers on Whistleblower Rewards," SITE Working Paper Series 44, Stockholm School of Economics, Stockholm Institute of Transition Economics, revised 27 Apr 2018.
    15. Spagnolo, Giancarlo & Nyreröd, Theo, 2019. "Financial Incentives for Whistleblowers: A Short Survey," SITE Working Paper Series 50, Stockholm School of Economics, Stockholm Institute of Transition Economics.

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