问题如下图：
选项：
A. 
B. 
C. 
解释：
Counterparty credit risk 为什么只在衍生品中存在，corporate bond 没有吗
NO.PZ201812020100000305 问题如下 Serena’s three assumptions regarng the ration-matching strategyincate the presenof: mol risk. sprerisk. counterparty cret risk. Ais correct. Serena believes thany shift in the yielcurve will parallel.Mol risk arises whenever assumptions are ma about future events anpproximations are useto measure key parameters. The risk is ththoseassumptions turn out to wrong anthe approximations are inaccurate. Anon-parallel yielcurve shift couloccur, resulting in a mismatof theration of the immunizing portfolio versus the liability. 老师，看了其他同学的提问，我可以理解A是对的，但还是有几个疑惑点1.讲解视频里说sprerisk和counterparty cret risk存在于用衍生品对冲的情形中。这句话我觉得不太对吧，债券和衍生品都应该是会存在spre risk和counterparty cret risk的。2.assumption 2 说的是asset端的bon以matliability的性质，最多我可以判断asset端的bonliability之间的yiel较接近，这种match好像和sprea不上关系吧，sprea定义指的应该是公司债的收益率-国债的收益率3.counterparty cret risk 确实不止存在于衍生品中，也存在于债券中，债券违约也属于对手方信用风险，所以不太明白这项为什么错
NO.PZ201812020100000305 sprerisk. counterparty cret risk. A is correct. Soto believes thany shift in the yielcurve will parallel. Mol risk arises whenever assumptions are ma about future events anapproximations are useto measure key parameters. The risk is ththose assumptions turn out to wrong anthe approximations are inaccurate. A non-parallel yielcurve shift couloccur, resulting in a mismatof the ration of the immunizing portfolio versus the liability 第二个假设里用相同的quality bon 不是对应cret risk 吗？
NO.PZ201812020100000305
sprerisk. counterparty cret risk. A is correct. Soto believes thany shift in the yielcurve will parallel. Mol risk arises whenever assumptions are ma about future events anapproximations are useto measure key parameters. The risk is ththose assumptions turn out to wrong anthe approximations are inaccurate. A non-parallel yielcurve shift couloccur, resulting in a mismatof the ration of the immunizing portfolio versus the liability 我看发亮老师说c项不用衍生品可以降低sprerisk，这个怎么理解？衍生品是否引入sprerisk应该和他的标的也有关系吧？
