| Summary: | 碩士 === 國立雲林科技大學 === 財務金融系碩士班 === 101 === Data collections of this study are from special column “Weekly Stock Market
Success”, portfolio investment edition in Commercial Times Daily. The sampling period
is from January 1, 2012 to December 31, 2012 and there are 585 items in the sample. The
researcher used “event study” to explore, and found the following results.
1. The recommend stock in the special column would be in obviously abnormal returns
before the event date. However, after the information is disclosure, the investor would get
abnormal returns on the event date. Though, the returns would decline when time goes by.
2. During the period of the event, the industry classification recommend by the print media
differs from each other, their abnormal returns would differ, too. In addition, the electronic
industry are in the most high proportion.
3. Abnormal returns of “January” is more remarkable than that in the other months.
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