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Reduction of Systemic Risk by Means of Pigouvian Taxation

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  • Vinko Zlatić
  • Giampaolo Gabbi
  • Hrvoje Abraham

Abstract

We analyze the possibility of reduction of systemic risk in financial markets through Pigouvian taxation of financial institutions, which is used to support the rescue fund. We introduce the concept of the cascade risk with a clear operational definition as a subclass and a network related measure of the systemic risk. Using financial networks constructed from real Italian money market data and using realistic parameters, we show that the cascade risk can be substantially reduced by a small rate of taxation and by means of a simple strategy of the money transfer from the rescue fund to interbanking market subjects. Furthermore, we show that while negative effects on the return on investment (ROI) are direct and certain, an overall positive effect on risk adjusted return on investments (ROIRA) is visible. Please note that the taxation is introduced as a monetary/regulatory, not as a _scal measure, as the term could suggest. The rescue fund is implemented in a form of a common reserve fund.

Suggested Citation

  • Vinko Zlatić & Giampaolo Gabbi & Hrvoje Abraham, 2015. "Reduction of Systemic Risk by Means of Pigouvian Taxation," PLOS ONE, Public Library of Science, vol. 10(7), pages 1-18, July.
  • Handle: RePEc:plo:pone00:0114928
    DOI: 10.1371/journal.pone.0114928
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    Cited by:

    1. Lorenzo Esposito & Ettore Giuseppe Gatti & Giuseppe Mastromatteo, 2019. "Sustainable finance, the good, the bad and the ugly: a critical assessment of the EU institutional framework for the green transition," DISCE - Quaderni del Dipartimento di Politica Economica dipe0004, Università Cattolica del Sacro Cuore, Dipartimenti e Istituti di Scienze Economiche (DISCE).
    2. Giulia Iori & Mauro Politi & Guido Germano & Giampaolo Gabbi, 2015. "Banks' Strategies and Cost of Money: Effects of the Financial Crisis on the European Electronic Overnight Interbank Market," Journal of Financial Management, Markets and Institutions, Società editrice il Mulino, issue 2, pages 179-202, December.
    3. Basak, Deepal & Murray, Alexander & Zhao, Yunhui, 2017. "Does Financial Tranquility Call for More Stringent Regulation?," MPRA Paper 81373, University Library of Munich, Germany.
    4. Deepal Basak & Yunhui Zhao, 2018. "Does Financial Tranquility Call for Stringent Regulation?," IMF Working Papers 18/123, International Monetary Fund.

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