The impact of smart phone issuing by iphone and samsung on stock prices of Taiwan's supply chain – taking optical lens manufacturers as an example

• Main Authors: HUANG,JING-YI, 黃菁怡
• Other Authors: CHANG,TZU-PU
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/w3x486

碩士 === 國立雲林科技大學 === 財務金融系 === 107 === Smart phones have become a necessity for modern human-machines. The iPhone and Samsung always have been the top three in the domestic mobile phone market, and the evolution of technology has also led to the improvement of mobile phone built-in cameras. This study from the 2010 to 2018 period Apple and Samsung's new mobile phone product launch date and Taiwan listing announcement effect, and Taiwan's optical lens manufacturer supply chain as the research object, using the event research method to conduct research, empirical observation events Whether it has an impact on Taiwan's supply chain stock price before and after the day, the two optical lens manufacturers "LARGAN(3008)" and "GSEO(3406)" were tested. The empirical results showed that the iPhone was significantly negative after the release of the new machine. The abnormal remuneration, Taiwan’s listing announcement recently found that there was a significant positive abnormal payment; Samsung had a significant positive abnormal remuneration before the launch date of the new machine, and a negative remuneration after the event date; then there was a significant negative before and after the Taiwan listing announcement date. The abnormal remuneration confirmed that Taiwan’s listing announcement day had a negative effect on the supply chain manufacturers.