详情
中国违约风险流动性溢酬研究
和无风险国债相比,公司债券的投资者必须承担由于公司无力偿还债券本息的额外违约风险。因此,根据风险收益对称原则,公司债券的收益率应该高于同一时期的无风险利率。二者之间的差额即是公司的违约风险溢酬 。本文在郑振龙、林海(2002)对中国利率期限结构静态估计的基础之上对中国违约风险溢酬问题进行了估计和分析。研究结果表明,我国的公司债券市场存在着公司违约风险溢酬,这种风险溢酬随着期限的增加呈现出不断上升的总体趋势,这与投资者的理性观念相符。但是由于中国公司债券市场发展的落后以及品种的稀少,对公司债券的定价存在着一定程度的不合理现象。
The investors of corporate bonds have to undertake the additional risk that the corporate will lose the ability of paying off the principal and interest and default. So the return of corporate bonds should be higher than the interest rate of the same period. The difference is the default risk premium. This paper uses the estimation result of Zheng and Lin(2002) and makes an empirical test on the default risk premium in China’s corporate bond market. The results show the existence of default risk premium, which increases generally with time horizon. This matches the rational investment idea. But due to the less development of China’s corporate bond market, the price of corporate bonds is unreasonable in some extent and in some periods.