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Risk externalities and too big to fail

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  • Taleb, Nassim N.
  • Tapiero, Charles S.
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    Abstract

    This paper establishes the case for a fallacy of economies of scale in large aggregate institutions and the effects of scale risks. The problem of rogue trading and excessive risk taking is taken as a case example. Assuming (conservatively) that a firm exposure and losses are limited to its capital while external losses are unbounded, we establish a condition for a firm not to be allowed to be too big to fail. In such a case, the expected external losses second derivative with respect to the firm capital at risk is positive. Examples and analytical results are obtained based on simplifying assumptions and focusing exclusively on the risk externalities that firms too big to fail can have.

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    Bibliographic Info

    Article provided by Elsevier in its journal Physica A: Statistical Mechanics and its Applications.

    Volume (Year): 389 (2010)
    Issue (Month): 17 ()
    Pages: 3503-3507

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    Handle: RePEc:eee:phsmap:v:389:y:2010:i:17:p:3503-3507

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    Web page: http://www.journals.elsevier.com/physica-a-statistical-mechpplications/

    Related research

    Keywords: Risk management; Tail risks; Corporate finance; Quantitative finance;

    References

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    1. Saito, Yukiko Umeno & Watanabe, Tsutomu & Iwamura, Mitsuru, 2007. "Do larger firms have more interfirm relationships?," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 383(1), pages 158-163.
    2. Aleksiejuk, Agata & HoƂyst, Janusz A., 2001. "A simple model of bank bankruptcies," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 299(1), pages 198-204.
    3. Okuyama, K & Takayasu, M & Takayasu, H, 1999. "Zipf's law in income distribution of companies," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 269(1), pages 125-131.
    4. Fujiwara, Yoshi, 2004. "Zipf law in firms bankruptcy," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 337(1), pages 219-230.
    5. Taleb, Nassim Nicholas, 2009. "Errors, robustness, and the fourth quadrant," International Journal of Forecasting, Elsevier, vol. 25(4), pages 744-759, October.
    6. Tapiero, Charles S., 2007. "Consumers risk and quality control in a collaborative supply chain," European Journal of Operational Research, Elsevier, vol. 182(2), pages 683-694, October.
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    Cited by:
    1. Torsten Heinrich & Henning Schwardt, 2013. "Institutional Inertia and Institutional Change in an Expanding Normal-Form Game," Games, MDPI, Open Access Journal, vol. 4(3), pages 398-425, August.

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