05:33 (2X)
spread change is from (1) economic conditions (2) credit quality, 我理解(1) 对应price change from change in benchmark yield, (2) 对应此处price change from spread change, 这个理解对吗？
此处yield spread 是只指 spread change due to credit quality change? 如果题目只给了change in yield spread，还是否需要区分两个部分