Backtesting the tail risk of VaR in holding US dollar

Woon Wong ()

Applied Financial Economics, 2009, vol. 19, issue 4, 327-337

Abstract: US dollar is the most widely held currency in the world. In recent years, however, it suffered huge depreciation. In this article, various risk models are used to forecast the Value-at-Risk (VaR) in holding the currency. Being a quantile measure, VaR disregards valuable information conveyed by the sizes of tail losses. As a result, there is tail risk (TR) in the use of VaR in practice. Saddlepoint technique is used to backtest TR of VaR by summing all the tail losses. Substantial downside TR are detected in the US currency, and Asymmetric Power ARCH with normal inverse Gaussian innovation is found capable of capturing such risks.

Date: 2009
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DOI: 10.1080/09603100802167312

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