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Contribution Details

Type Working Paper
Scope Discipline-based scholarship
Title Credit Valuation Adjustment in Financial Networks
Organization Unit
Authors
  • Irena Barjašić
  • Stefano Battiston
  • Vinko Zlatić
Language
  • English
Institution University of Zurich
Series Name ArXiv.org
Number 2305.16434
ISSN 2331-8422
Date 2023
Abstract Text Credit Valuation Adjustment captures the difference in the value of derivative contracts when the counterparty default probability is taken into account. However, in the context of a network of contracts, the default probability of a direct counterparty can depend substantially on the default probabilities of indirect counterparties. We develop a model to clarify when and how these network effects matter for CVA, in particular in the presence of correlation among counterparties defaults. We provide an approximate analytical solution for the default probabilities. This solution allows for identifying conditions on key parameters such as network degree, leverage and correlation, where network effects yield large differences in CVA (e.g. above 50%), and thus relevant for practical applications. Moreover, we find evidence that network effects induce a multi-modal distribution of CVA values.
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Digital Object Identifier 10.48550/arXiv.2305.16434
Other Identification Number merlin-id:24261
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