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漲跌停板與股價波動:有母數分析、無母數分析與譜系分析下之實證結果

摘要


本文的主旨在研究漲跌停板管制與股市穩定性間之關係。就台灣的股票市場而言,在1974-1978期間內,縮小漲跌停板顯著地降低股價變化率之平均數、變異數、偏態係數、峰度系數與振幅,也就是說,跌停板的管制較嚴格確實降低了資本市場的不穩定性。但隨著人們預期的調整,政策的效果越來越不顯著。在1987-1988期間內漲跌停板的管制變動對股價行為幾乎沒有影響。

並列摘要


For the period 1974-1978, decrease in the range of bound setting reduces significantly the mean, the variance, the skewness, the kurtosis, the degree of dispersion and the amplitude of the rate of stock price change. For the period 1987-1988, the change of bound setting has no significant impact on the mean, the variance, the skewness, the kurtosis and the amplitude of the rate of stock price change. The only significant impact is on the degreee of dispersion that is decreased when the range is narrowed.

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