Patents and market value in the U.S. pharmaceutical industry: new evidence from panel threshold regression
學年 101
學期 1
出版（發表）日期 2013-01-01
作品名稱 Patents and market value in the U.S. pharmaceutical industry: new evidence from panel threshold regression
作品名稱（其他語言）
著者 Chen, Yu-Shan; Shih, Chun-Yu; Chang, Ching-Hsun
單位 淡江大學企業管理學系
出版者 Budapest: Akademiai Kiado Rt.
著錄名稱、卷期、頁數 Scientometrics 97(2), pp.161-176
摘要 This paper applies panel threshold regression model to verify there is a triple threshold effect of patent citations/sales on the relationship between patent counts/sales and market value/sales in the American pharmaceutical industry. The results demonstrate that patent citations/sales moderates the relationship between patent counts/sales and market value/sales (i.e., the relationship between patent counts and market value). When patent citations/sales is less than or equal to the lowest threshold, 4.68, there is no significant relationship between patent counts and market value. Once patent citations/sales is more than the lowest threshold, there is a positive relationship between patent counts and market value. This study points out that the third regime is optimal because the extent of the positive relationship between patent counts and market value is most.
關鍵字 Patent analysis; Patent citations; Patent counts; Market value; Panel threshold regression
語言 en
ISSN 0138-9130 1588-2861
期刊性質 國外
收錄於 SSCI
產學合作
通訊作者 Chen, Yu-Shan
審稿制度 是
國別 HUN
公開徵稿
出版型式 電子版 紙本
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