SHIBOR Fluctuations and Stock Market Liquidity: An MF-DCCA Approach

This paper examines the nonlinear and dynamic cross-correlations between SHIBOR and Chinese stock market liquidity by employing MF-DCCA method. The cross-correlations display weak persistence and multifractal characteristics, explaining the variations in the relationship between them. The multifractality strength of the cross-correlations decreases after a recent liberalization reform. Moreover, interest rates have a significantly strong influence on stock market liquidity during tight monetary policy and emergencies, indicating the asymmetric and time-varying impact of interest rates on stock market liquidity. In addition, the effectiveness of interest rate transmission decreases in the period of the COVID-19 pandemic.