PPT 279页上的Hedging: "Using credit derivatives allows an organization to reduce counter-party exposure to its own clients in exchange for increasing counter-party exposure to clients of a competitor. Therefore, hedging generates market risk." 课程上老师举的例子是A卖了个forward 给B,同时又买了个保险来mitigating counter-party risk. 但是 B如果违约了,卖保险的那一方也有可能违约。可是这个例子好像无法用来理解PPT上的这段文字,这段文字应该怎么理解呢?谢谢