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  • 學位論文

星期效應與共同基金定期定額最佳扣款日之研究

The Day-of-the-Week Effect and the Best Debit Date of Mutual Fund Systematic Investment Plan

指導教授 : 陳達新
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摘要


本文旨在探討台灣股市目前是否仍存在星期效應或週星期效應;再依據該實證結果,運用在國內股票型基金之定期定額扣款日的選擇策略上,以期找到定期定額投資共同基金之最佳扣款日。選取2001年1月1日至2007年12月31日台灣證券交易所發行量加權股價指數及2001年1月1日至2008年1月31日之台灣股票型共同基金淨值,運用變異數分析方法,研究結果發現: 一、台灣股市已不存在顯著的星期效應:研究期間中每週內各交易日並無顯著之異常報酬率,週一及週二平均日報酬為負,最高平均日報酬之交易日為星期五。 二、台灣股市存在顯著的週星期效應:研究期間中每月份內仍存有一些週星期交易日之大盤日報酬率顯著異於其他交易日。第1週星期五及第5週星期四之大盤日報酬率平均數明顯較高,而第4週星期一則最差。 三、以每月固定日曆日定期定額投資國內股票型共同基金之最佳扣款日為每月1日:以每月1日及2日為定期定額扣款日所獲得之累計報酬率平均數明顯較高,而以每月22日至31日為扣款日時則明顯較差。 四、以每月固定週星期定期定額投資國內股票型共同基金之最佳扣款日為第1週星期三:以每月份第1週星期二及第1週星期三為定期定額基金扣款日,所獲得之累計報酬率平均數明顯較高,而第3週星期二為扣款日時則最差。且以每月固定週星期為基金定期定額扣款日時,所得之累計報酬率平均數,明顯高於以每月固定日曆日為基金定期定額扣款日時,所得之累計報酬率平均數。

並列摘要


The purposes of the study are to clarify whether the Day-of-the-Week Effect or the Day-of-the-Five-Weeks Effect still exist in Taiwan stock market, and to find the Best Debit Date of Mutual Fund Systematic Investment Plan. We respectively used the analysis of variance(ANOVA)test with the daily TSE Capitalization Weighted Stock Index of Taiwan stock market during the period from 2001/1/1 to 2007/12/31, and the net asset value(NAV)of the Equity Fund in Taiwan during the period from 2001/1/1 to 2008/01/31. The empirical results are as follows: 1.The Day-of-the-Week Effect did not exist in Taiwan stock market. The average return rate of every transaction day during the study period indicates no significant difference. The average return rates of Mondays and Tuesdays are negative. The highest average return rate is on Fridays. 2.There exists a significant Day-of-the- Five-Weeks Effect in Taiwan stock market. During the study period, there are significantly different returns among some transaction days of the five weeks in the month. The average return rates of Fridays of the first week and Tuesdays of the fifth week are significantly higher than the others. The lowest return is on Mondays of the fourth week. 3.The 1st day of each month is the Best Debit Date of Mutual Fund Systematic Investment Plan with the calendar day method. The average rates of total return that debit on the 1st and 2nd monthly are higher than the others, whereas debit on the 22nd to 31st of each month are lower. 4.Upon further investigation of Mutual Fund Systematic Investment Plan with the Day-of-the-Five-Weeks method, the Best Debit Date is found out to be Wednesdays of the first week in each month. The significantly higher average rates of total return are the Tuesdays and Wednesdays of the first week. The worst return is on the Thursdays of the third week. In addition, the Day-of-the-Five-Weeks method could result in better performance than the calendar day method.

參考文獻


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