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Which are the SIFIs? A Component Expected Shortfall approach to systemic risk

Denisa Banulescu-Radu and Elena Ivona Dumitrescu

Journal of Banking & Finance, 2015, vol. 50, issue C, 575-588

Abstract: This paper proposes a component approach to systemic risk which allows to decompose the risk of the aggregate financial system (measured by Expected Shortfall) while accounting for the firm characteristics. Developed by analogy with the Component Value-at-Risk concept, our new systemic risk measure, called Component ES, presents several advantages. It is a hybrid measure, which combines the Too Interconnected To Fail and the Too Big To Fail logics. CES relies only on publicly available daily data and encompasses the popular Marginal ES measure. CES can be used to assess the contribution of a firm to systemic risk at a precise date but also to forecast its contribution over a certain period. The empirical application verifies the ability of CES to identify the most systemically risky firms during the 2007–2009 financial crisis. We show that our measure identifies the institutions labeled as SIFIs by the Financial Stability Board.

Keywords: Systemic risk; Component Expected Shortfall; Marginal Expected Shortfall; Forecasting (search for similar items in EconPapers)
JEL-codes: C22 C53 G01 G32 (search for similar items in EconPapers)
Date: 2015
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