问题如下图：
选项：
A. 
B. 
C. 
解释：
A选项错了，是因为这是公司债而非国债吗？
NO.PZ2015121810000037问题如下A crease in the prices of AAA-ratecorporate bon ring a recession woulmost likely the result of:A.expectations of higher inflation.B.increases in cret risk premiums.C.increases in short-term, fault-free interest rates.B is correct.ring recessions, the risk premium thinvestors manon financiassets, particularly those thare not fault-free, sucorporate bon, mrise because investors in genermless willing anable to take on heightenefault risk ring superio. Specifically, the cret risk premium maninvestors ten to rise in times of economic weakness, when the probability of a corporate fault anbankruptis highest. 考点Cret-risky bon解析问的是投资级的公司债在经济衰退的时候为什么价格下降。A，在经济好的情况下才会预测inflation rate 变大，所以A错。B，经济差的时候，要求的风险补偿更高，所以折现率变大，债券价格下降，B正确。reshort-term interest rates在经济差的时候会下降，所以C错。老师好，请问这道题的结论和 债券价格和利率成反比是否冲突，如何去理解，谢谢！
NO.PZ2015121810000037 问题如下 A crease in the prices of AAA-ratecorporate bon ring a recession woulmost likely the result of: A.expectations of higher inflation. B.increases in cret risk premiums. C.increases in short-term, fault-free interest rates. B is correct.ring recessions, the risk premium thinvestors manon financiassets, particularly those thare not fault-free, sucorporate bon, mrise because investors in genermless willing anable to take on heightenefault risk ring superio. Specifically, the cret risk premium maninvestors ten to rise in times of economic weakness, when the probability of a corporate fault anbankruptis highest. 考点Cret-risky bon解析问的是投资级的公司债在经济衰退的时候为什么价格下降。A，在经济好的情况下才会预测inflation rate 变大，所以A错。B，经济差的时候，要求的风险补偿更高，所以折现率变大，债券价格下降，B正确。reshort-term interest rates在经济差的时候会下降，所以C错。 经济衰退 → 利差扩大 → 高评级表现更好
按照讲义中的结论，经济差in recession中，政府为了刺激经济，短期R会下降，而the slope of yielcurve会steepen, 意味着长期利率会提高，所以对应inflation应该是上升才对，为什么A错呢？
increases in cret risk premiums. increases in short-term, fault-free interest rates. B is correct. ring recessions, the risk premium thinvestors manon financiassets, particularly those thare not fault-free, sucorporate bon, mrise because investors in genermless willing anable to take on heightenefault risk ring superio. Specifically, the cret risk premium maninvestors ten to rise in times of economic weakness, when the probability of a corporate fault anbankruptis highest. 考点Cret-risky bon 解析问的是投资级的公司债在经济衰退的时候为什么价格下降。 A，在经济好的情况下才会预测inflation rate 变大，所以A错。 B，经济差的时候，要求的风险补偿更高，所以折现率变大，债券价格下降，B正确。 reshort-term interest rates在经济差的时候会下降，所以C错。C这个结论一般应该怎么理解和记忆比较好。
老师我可以这样理解吗？经济不好的时候, 人们会倾向投资国债>AAA公司债>BB公司债>CC公司债，公司债无论哪个级别都是有cret risk premium
