| Summary: | 碩士 === 義守大學 === 財務金融學系 === 100 === Subjects were stock returns of Apple Inc. and stock returns of supply chain in Taiwan by using the methodology that is multiple regression analysis and event study. There is a significant relations between stock returns of Apple Inc. and stock returns of supply chain in Taiwan, but the stock returns of supply chain in Taiwan is more affected by TAIEX than stock returns of Apple Inc. Meanwhile, stock returns of supply chain that provide more than two products in Taiwan were more affected by stock returns of Apple Inc. than the companies that provide single product. In the test of announcement effect, I find there is a higher abnormal returns before new product of Apple Inc. has announced two days ago, and the positive abnormal reverse on announcement date.
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