Quotation Feinstein, Zachary, Rudloff, Birgit, Weber, Stefan. 2017. Measures of systemic risk. SIAM Journal on Financial Mathematics 8 (1), 672-708.


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Abstract

Systemic risk refers to the risk that the financial system is susceptible to failures due to the characteristics of the system itself. The tremendous cost of systemic risk requires the design and implementation of tools for the efficient macroprudential regulation of financial institutions. The current paper proposes a novel approach to measuring systemic risk. Key to our construction is a rigorous derivation of systemic risk measures from the structure of the underlying system and the objectives of a financial regulator. The suggested systemic risk measures express systemic risk in terms of capital endowments of the financial firms. Their definition requires two ingredients: A cash flow or value model that assigns to the capital allocations of the entities in the system a relevant stochastic outcome; and an acceptability criterion, i.e., a set of random outcomes that are acceptable to a regulatory authority. Systemic risk is measured by the set of allocations of additional capital that lead to acceptable outcomes. We explain the conceptual framework and the definition of systemic risk measures, provide an algorithm for their computation, and illustrate their application in numerical case studies. Many systemic risk measures in the literature can be viewed as the minimal amount of capital that is needed to make the system acceptable after aggregating individual risks, hence quantify the costs of a bail out. In contrast, our approach emphasizes operational systemic risk measures that include both ex-post-bailout costs as well as ex-ante-capital requirements and may be used to prevent systemic crises.

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Publication's profile

Status of publication Published
Affiliation WU
Type of publication Journal article
Journal SIAM Journal on Financial Mathematics
Citation Index SSCI
WU-Journal-Rating new FIN-A
Language English
Title Measures of systemic risk
Volume 8
Number 1
Year 2017
Page from 672
Page to 708
Reviewed? Y
URL http://arxiv.org/pdf/1502.07961.pdf
DOI http://dx.doi.org/10.1137/16M1066087

Associations

People
Rudloff, Birgit (Details)
External
Feinstein, Zachary (Washington University at St. Louis, United States/USA)
Weber, Stefan (Leibniz Universität Hannover, Germany)
Organization
Institute for Statistics and Mathematics IN (Details)
Research areas (ÖSTAT Classification 'Statistik Austria')
1118 Probability theory (Details)
1137 Financial mathematics (Details)
5361 Financial management (Details)
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