Research on Liquidity Risk of Corporate Bond Spread in China

The paper focuses on liquidity risk of corporate bond, and it collects panel data from 2014 to 2018 in Corporate bond Exchange center in China. It measures liquidity by issued amount, trading turnover, squared price return, volume and bond age. In the regression Squared price return is significant, and the squared price return could indicate to what extent the bond is underpriced. At the same time, corporate bond trading volumes increase, but liquidity risk premium decreases, so the corporate bond spread decreases. Also, the large issued amount indicates high liquidity. In the paper, it finds that the threshold of 12 months is the best in corporate bond market in Exchange in China, and the liquidity risk premium which presented by age is a very important part in corporate bond spread. The results above are consistent with the hypotheses. But in the regression, the variable of corporate bond trades is positively correlated with corporate bond spread, and it's different from the null hypothesis. It infers that there're several reasons, maybe too much missing data in the sample or the samples are in an economic crisis period. Overall, issued amount, squared price return, volume and trading turnover are proxies of liquidity risk, however they are less important than bond age.