Market risk management in a post-Basel II regulatory environmentAuthor-Name: Drenovak, Mikica
Vladimir Ranković,
Miloš Ivanović,
Branko Urošević and
Ranko Jelic
European Journal of Operational Research, 2017, vol. 257, issue 3, 1030-1044
Abstract:
We propose a novel method of Mean-Capital Requirement portfolio optimization. The optimization is performed using a parallel framework for optimization based on the Nondominated Sorting Genetic Algorithm II. Capital requirements for market risk include an additional stress component introduced by the recent Basel 2.5 regulation. Our optimization with the Basel 2.5 formula in the objective function produces superior results to those of the old (Basel II) formula in stress scenarios in which the correlations of asset returns change considerably. These improvements are achieved at the expense of reduced cardinality of Pareto-optimal portfolios. This reduced cardinality (and thus portfolio diversification) in periods of relatively low market volatility may have unintended consequences for banks’ risk exposure.
Keywords: Finance; Market risk; Basel 2.5; GARCH; NSGA-II (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (4)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ejores:v:257:y:2017:i:3:p:1030-1044
DOI: 10.1016/j.ejor.2016.08.034
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