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研究生:洪資惠
研究生(外文):Hung, Zih-Hui
論文名稱:探討美國製藥產業的總專利數、平均專利年齡、HHI(專利集中程度)對淨利之影響
論文名稱(外文):The Influences of Patent Counts, Average Age of Patents and Herfindahl-Hirschman Index of Patents upon Net Income in the American Pharmaceutical Industry
指導教授:陳宥杉陳宥杉引用關係
指導教授(外文):Chen, Yu-Shan
口試委員:陳宥杉陳心懿田文彬陳重光
口試委員(外文):CHEN, YU-SHANCHEN, HSIN-YITIEN, WEN-PINCHEN, CHUNG KUANG
口試日期:2017-06-02
學位類別:碩士
校院名稱:國立臺北大學
系所名稱:企業管理學系
學門:商業及管理學門
學類:企業管理學類
論文種類:學術論文
論文出版年:2017
畢業學年度:105
語文別:中文
論文頁數:70
中文關鍵詞:總專利數平均專利年齡專利集中程度淨利人工類神經網絡美國製藥產業
外文關鍵詞:Patent countsAverage age of patentsHHI of patentsNet incomeArtificial neural networkAmerican pharmaceutical industry
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本研究以36家美國製藥公司為研究對象,研究期間係由2006年至2015年,其中專利數據擷取自美國專利商標局(United States Patent and Trademark Office, USPTO)官方資料庫,財務數據則取自COMPUSTAT財經資料庫。本研究以人工類神經網絡(ANN)作為進行專利分析的方法,並且探討美國製藥公司的總專利數、平均專利年齡與HHI(專利集中程度)對公司淨利的影響。研究結果發現平均專利年齡與專利集中程度皆對公司淨利有負向影響;此外,總專利數對於公司淨利具有正向的影響,其中,最適點前為正向關係、最適點後則趨於平緩。
The objects of the research are 36 American pharmaceutical companies, and the research period is 2006-2015. The patent data and the financial data in this research are separately collected from the official database of United States Patent and Trademark Office (USPTO) and financial database of COMPUSTAT. This research uses artificial neural network (ANN) as the method of patent analysis to explore the influences of Patent Counts, Average Age of Patents, and Herfindahl-Hirschman Index of patents (HHI of patents) of American pharmaceutical companies upon net income. The result shows that the Patent Counts have positive influence on net income of American pharmaceutical companies. In addition, the Average Age of Patents and HHI of patents have negative influence on net income.
謝 詞 I
中文摘要 II
ABSTRACT III
目 錄 IV
圖 次 VI
表 次 VII
第一章 緒論 1
第一節 研究背景 1
第二節 研究動機 3
第三節 研究目的 4
第四節 研究章節架構 4
第二章 文獻探討與假說 7
第一節 製藥產業 7
第二節 專利 20
第三節 相關變數與假說 29
第三章 研究設計 35
第一節 模型建立 35
第二節 研究架構 43
第三節 資料來源 44
第四節 衡量變數 45
第四章 研究結果 47
第一節 敘述性統計量 47
第二節 實證結果 47
第五章 結論與建議 53
第一節 研究結論 53
第二節 管理意涵 54
第三節 研究限制與未來研究建議 56
參考文獻 59
著作權聲明 71
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