| Summary: | 碩士 === 國立高雄第一科技大學 === 金融研究所 === 101 === This study takes the component stocks of Taiwan 50 index as sample and uses the two-sample t test to investigate appropriate band width and moving average line of bollinger bands method for the study period from 2005 to 2012.
Empirical results show that the bollinger bands method with a 10-day moving average has better operation performance. Moreover, operation performance of taking a 2.5 times the standard deviation for band width is better than those of 1.5 times and 2.0 times the standard deviations. Based on the findings, when investors use the bollinger bands method to buy and sell stocks, the band width and moving average line can be set at 2.5 times the standard deviation and 10-day moving average, respectively.
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