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Shapley allocation, diversification and services in operational risk

Mitic, Peter; Hassani, Bertrand; (2018) Shapley allocation, diversification and services in operational risk. Journal of Operational Risk , 13 (1) pp. 1-14. 10.21314/JOP.2018.205. Green open access

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Abstract

In this paper, a method of allocating operational risk regulatory capital using a closed-form Shapley method, applicable to a large number of business units (BUs), is proposed. It is assumed that if BUs form coalitions, the value added to a coalition by a new entrant is a simple function of the value of that entrant. This function represents the diversification that can be achieved by combining operational risk losses. Two such functions are considered. The calculations account for a service that further reduces the capital payable by BUs. The results derived are applied to recent loss data

Type: Article
Title: Shapley allocation, diversification and services in operational risk
Open access status: An open access version is available from UCL Discovery
DOI: 10.21314/JOP.2018.205
Publisher version: http://doi.org/10.21314/JOP.2018.205
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Diversification, Operational risk, Shapley value, Original research
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
URI: https://discovery.ucl.ac.uk/id/eprint/10163503
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