| Summary: | 碩士 === 國立交通大學 === 管理學院管理科學學程 === 107 === In 2017, the value of the Internet of Things has grown to NT$977.4 billion, accounting for 4.1% of global output, with an annual growth rate of 19%. In 2018, it broke through 1 trillion Taiwan dollars for the first time, reaching a scale of US$39.1 billion (about NT$1.17 trillion), with an annual growth rate of 19%. Compared with Taiwan’s semiconductor output value of NT$2.61 in 2018, it is obvious that the Internet of Things will play an important role in the future of Taiwan’s semiconductor industry. The purpose of the study was to explore major events related to the alliance of the Internet of Things and information security. This study is based on the global leading industry trends from 2016 to 2018 and major events related to information security, using even study method to observe the abnormal returns. The empirical findings are as follow.
1. The exposure of the security incident will result in significant positive abnormal returns for the Taiwan internet of things industry.
2. The alliance of the internet of things industry will generate significant positive abnormal returns to the Taiwan internet of things industry
3. The research results can be explained by investors' expectation that Taiwan's supply chain will be affected by the news exposed on the event day, resulting in irrational blind investment behavior, in line with the theory of signalling.
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