Abstract

It is difficult for the current researches to effectively describe the real influence of price limit on stock price on the limit up and down day. This study embeds the working principle of band-pass filter in the relationship between price limit and stock price volatility, and constructs GARCH (1, 1) model by using the high-frequency transaction data in Chinese stock market to re-examine the influence of price limit on stock price volatility on the limit up and down day. The results show that price limit doesn't play a role in reducing the stock price volatility but contributes to the volatility.

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