Wu, Kai; Liu, Yi; Feng, Weiyang - In: Journal of risk and financial management : JRFM 15 (2022) 4, pp. 1-19
In this study, we examine the effect of introducing SSE 50ETF index options trading on stock market volatility using a … indicators, we estimate the counterfactual volatility of the SSE 50 index and find that the introduction of index options reduces … stock market volatility significantly in the long term. The primary findings are robust to alternative econometric models …