<r>Shaotzuning,Check out chapter 9 in our primer for a discussion on CVaR:<URL url="http://www.csfb.com/institutional/research/CreditPortfolioModeling.pdf"><LINK_TEXT text="http://www.csfb.com/institutional/resea ... deling.pdf">http://www.csfb.com/institutional/research/CreditPortfolioModeling.pdf<...