The Influences of Patent Counts, Average Age of Patents and Herfindahl-Hirschman Index of Patents upon Net Income in the American Pharmaceutical Industry
碩士 === 國立臺北大學 === 企業管理學系 === 105 === 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 (U...
| Main Authors: | , |
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2017
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| Online Access: | http://ndltd.ncl.edu.tw/handle/2xwk59 |