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It was not specified what Q or E(t) are. I appreciate that the article was referenced, but it is still important to define each of the terms in a displayed formula. According to the article, E(t) is the "exposure" to the counterparty at time t, and I'm not sure what that entails exactly. Although I'm not sure, I imagine that Q might be an equivalent martingale measure. The article mentions "risk neutral", but I'm not sure what that means either.Vinzklorthos (talk) 20:29, 27 January 2012 (UTC)Reply