老师 614这题可以解释一下BCD吗

第34题怎么做

Credit Risk Q 71. page 34-76, there is not correlation given in the question , how could we find the netting factor? (squ (n ＋ (n-1)np)/n

Credit Risk Q 66 page 32-76, why the answer is C? If i gain in value from the froward (increase in exposure). the producer suffers more loss (PD increases) why the answer is not D? My exposure increases (or fixed because my gain is the premium of selling put), while the PD decreases (stock price up)

關於Credit risk百題, question 50, page 25-76. Why the answer is D? why the answer is not B as foreign exchange contract is related to exchange of whole notional amount , foreign exchange contract should have the greatest credit exposure, why B is not the answer?

第29题怎么做

關於Credit risk百題, question 41, page 21-76, question 1: what is the meaning of unconditional PD 1% in this question? it is for what purpose? question 2: the answer mentions that (-2.33-(-0.4))/0.9165 should be = -2.158, why the answer is 1.8% ? question 3: what if the question is changed to "unconditional PD 3% or 4%" , then what will be the new formulas to find the new answers?

贝塔应该如何理解，一定是杠杆吗？不能代表投资资产的风险相对于市场的风险倍数吗？

在volatility smile topic , why can’t European and American option use Delta approach? (Highlighted one red)

这道题，confidence level上升，按照VaR的公式u-zsegma，var值会变小啊，分母上的var值变小，整个式子上升才对吧？