Designing an expert-knowledge-based systemic importance index for financial institutions

Carlos León and Clara Machado

Journal of Financial Market Infrastructures

Abstract: ABSTRACT Defining whether a financial institution is systemically important (or not) is challenging due to: the inevitability of combining complex importance criteria such as institutions' size, connectedness and substitutability; the ambiguity of what an appropriate threshold for those criteria might be; and the involvement of expert knowledge as a key input for combining those criteria. The proposed method, a fuzzy logic inference system, uses four key systemic importance indicators that capture institutions' size, connectedness and substitutability, and a convenient deconstruction of expert knowledge to obtain a systemic importance index; key systemic importance indicators were designed from data from large-value payment systems as well as balance sheets. This method allows combination of dissimilar concepts in a nonlinear, consistent and intuitive manner, while considering them as continuous (nonbinary) functions. Results reveal that the method imitates the way experts themselves think about the decision process regarding what a systemically important financial institution is within the financial system under analysis. The importance index is a comprehensive relative assessment of each financial institution's systemic importance. It may serve financial authorities as a quantitative tool for focusing their attention and resources where the severity resulting from an institution failing or near-failing is estimated to be greatest. It may also serve for enhanced policy-making (eg, prudential regulation, oversight and supervision) and decision-making (eg, resolving, restructuring or providing emergency liquidity).

References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.risk.net/journal-of-financial-market-i ... nancial-institutions (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:rsk:journ7:2294787

Access Statistics for this article

More articles in Journal of Financial Market Infrastructures from Journal of Financial Market Infrastructures
Bibliographic data for series maintained by Thomas Paine ().