Foreign exchange value-at-risk with multiple currency exposure : a multivariate and copula generalized autoregressive conditional heteroskedasticity approach / David W. Maybury.: D68-2/62-2014E-PDF

Large DND projects and acquisitions are exposed to more than one foreign currency at the same time which complicates management’s foreign exchange risk assessments. The Centre for Operational Research and Analysis’ (CORA) in-house Generalized Autoregressive Conditional Heteroskedasticity (GARCH) models are extended to a full multivariate setting. The extensions involve two models types: multivariate GARCH and copula-GARCH. It was found that both models give qualitatively similar value-at-risk (VaR) estimates, and that both models provide a much improved risk assessment relative to the current practice – correcting VaR estimates on the order of 25% in cases in which multiple currency exposures are of similar size. Using the USDCAD, the EURCAD, and the GBPCAD, estimation techniques for each model are demonstrated. Finally, the strength of the improved models are shown through a 100-day VaR calculation.

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Publication information
Department/Agency Canada. Defence R&D Canada.
Title Foreign exchange value-at-risk with multiple currency exposure : a multivariate and copula generalized autoregressive conditional heteroskedasticity approach / David W. Maybury.
Series title Scientific report ; 2014-R62
Publication type Series - View Master Record
Language [English]
Format Electronic
Electronic document
Note(s) November 2014.
Includes bibliographical references.
Publishing information [Ottawa] : Defence Research and Development Canada, 2014.
Author / Contributor Maybury, David W.
Description viii, 42, [2] p. : fig., graphs, tables.
Catalogue number
  • D68-2/62-2014E-PDF
Departmental catalogue number DRDC-RDDC-2014-R62
Subject terms Purchasing
Foreign payments
Risk management
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