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arrun
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Joined: August 1st, 2006, 6:14 am

VaR Decomposition

June 8th, 2007, 9:20 am

Suppose an investor in country A bought N unit of asset in country B at rate S in local currency. Therefore it's investment in country B is N*S*E where E is the exchange rate. Now I calculated 1 day VaR for this investment. Now I want to see what percentage of this VaR is due to asset and what percentage is due to exchange rate i.e. I want to decompose it in two dimension. Can anyone give any idea how to do that?Thanks
 
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JoeyDVivre
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Joined: June 3rd, 2007, 12:06 pm

VaR Decomposition

June 10th, 2007, 8:47 pm

Is there something wrong with just using incremental VaR like in the RiskMetrics book?
 
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ronm
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Joined: June 8th, 2007, 9:00 am

VaR Decomposition

June 11th, 2007, 9:55 am

Basic idea is same, in RiskMetrics, they differentiate portfolio var expressed in currency like USD w.r.t. weight vector [in same unit i.e. USD]. But in my problem, how I differentiate the portfolio VaR, that I calculated?