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題名：專利訴訟首次索賠金額與企業市場價值
書刊名：科技管理學刊
作者：徐世同／陳靜誼 引用關係
作者(外文)：Shu, Shih-tung／Chen, Jing-yi
出版日期：2014
卷期：19:4
頁次：頁25-54
主題關鍵詞：專利侵權；首次索賠金額；事件研究法；股價異常報酬；Patent infringement；Initial claim amount；Event study；Abnormal stock returns
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  • 共同引用共同引用:6
  • 點閱點閱:22
使用專利侵權訴訟維護智慧財產權的利益，或騷擾競爭對手，已成為企業創新管理常見的議題。過去研究僅聚焦在專利訴訟事件前後的股價異常報酬變化，並未針對事件的輕重程度進行探究，是否當索賠金額愈大時，此訴訟影響愈大。本研究使用事件研究法，檢驗此首次訴訟案件對訴訟雙方的股價異常報酬是具顯著性；並進一步使用橫斷面迴歸分析，檢驗索賠金額對公司股價變動的影響。結果指出：一、當專利侵權訴訟案件發生時，被告公司的股價異常報酬負向顯著下降；而原告公司的股價異常報酬雖上升，但未達顯著水準；二、當原告公司首次索賠金額愈大，被告公司股價下降則愈顯著。
It has become a common practice for a firm using patent infringement lawsuits to protect the interests of intellectual property rights or to harass the competitive opponents. Previous researches focused on the changes of abnormal stock returns due to patent lawsuits without exploring the severity level of the events. This study employed the method of event study to examine the impact of an initial claim amount on the abnormal stock return. The effect of the initial claim amount on the firm's stock return is also tested by using cross-section regression analysis. Results of the study indicated that: (1) the abnormal stock returns of a defendant company declines when facing the patent infringement lawsuit, while the stock returns of the plaintiff companies showed no significant gain, and (2) the larger the initial claim amounts of the plaintiff companies, the deeper the downward change of the stock price of the defendant companies.
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研究報告
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2.Myers, S. C.、Majluf, N. S.(1984)。Corporate Financing and Investment Decisions When Firms Have Information that Investors Do Not Have。Cambridge, MA：National Bureau of Economic Research。  new window
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學位論文
1.王麗仁(2008)。專利爭訟資訊對股價之影響(碩士論文)。東吳大學。  延伸查詢new window
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其他
1.台灣經濟新報(2010)。台灣經濟新報資料庫，http://www.tej.com.tw/twsite/， 2013/08/16。  延伸查詢new window
 
 
 
 
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