臺灣博碩士論文加值系統

自新冠肺炎「Covid-19」迅速擴散至全球以來，除了人們生命安全受到威脅，更重創了全球六大經濟領域，包括全球運輸業﹑旅遊娛樂業﹑製造產業鏈﹑能源和大宗商品﹑銀行保險業﹑奢侈品行業，許多企業也因此受到影響，本研究以企業價值作為應變數，並將本國上市(櫃)企業分類為受新冠病毒影響較大者與影響較小者，利用La Porta模型探討在新冠肺炎疫情爆發後對企業價值的影響。實證結果顯示，新冠肺炎(COVID_19)與資產報酬率(ROA)呈現顯著負相關 ；新冠肺炎(COVID_19)與Tobins Q呈顯著負相關。因此，新冠肺炎與企業價值具有攸關性，不論從會計績效面或市場績效面衡量，在新冠肺炎疫情爆發後，企業價值(資產報酬率﹑Tobins Q)均下降。

Since the rapid spread of the new crown pneumonia "Covid-19" to the world, in addition to threats to people's lives, it has also severely damaged six major economic sectors in the world, including global transportation, tourism and entertainment, manufacturing industry chains, energy and bulk commodities, and bancassurance. Many companies in the luxury goods industry and the luxury goods industry are also affected by this. This study uses corporate value as a response factor, and divides China’s listed companies into a large group and an impact group that are affected by the new crown pneumonia, and uses the La Porta model to explore the outbreak of the new crown pneumonia. Impact on corporate value afterwards. The empirical results show that the new coronary pneumonia (COVID_19) has a significant negative correlation with the return on assets (ROA); the new coronary pneumonia (COVID_19) has a significant negative correlation with Tobins Q. Therefore, the new crown pneumonia is closely related to the value of the company. Whether measured from the aspect of accounting performance or market performance, after the outbreak of the new crown pneumonia, the value of the company (return on assets, Tobins Q) has declined.

目錄
摘要 i
Abstract ii
誌謝 iii
表目錄 v
圖目錄 vi
壹、緒論 2
1.1研究背景與動機 2
1.2研究目的 4
1.3研究架構與流程 4
貳、文獻探討及研究假說 6
2.1企業價值 6
2.2 全球性重大危機對企業的影響 9
2.3新冠肺炎COVID_19對企業的影響 12
參、研究方法 14
3.1樣本選取與資料來源 15
3.2 模型設計 17
3.3 變數定義 19
肆、實證結果與分析 22
4.1敘述性統計 22
4.2相關性分析 24
4.3迴歸分析 25
4.4不同組別之Difference in Difference分析 27
4.2相關性分析 28
4.3迴歸分析 32
4.4 不同組別之Difference in Difference分析 36
伍﹑結論與建議 37
參考文獻 38

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