Using neural network to analyze the influence of the patent performance upon the market value of the US pharmaceutical companies

被引：27

作者：

Chen, Yu-Shan ^{[1
]}

Chang, Ke-Chiun ^{[1
]}

机构：

[1] Natl Yunlin Univ Sci & Technol, Touliu, Yunlin, Taiwan

来源：

SCIENTOMETRICS | 2009年 / 80卷 / 03期

关键词：

RESEARCH-AND-DEVELOPMENT; EMPIRICAL-ANALYSIS; TECHNOLOGY; CLASSIFICATION; INNOVATION; FIRMS; PREDICTIONS; PORTFOLIOS; CITATIONS; INDUSTRY;

D O I：

10.1007/s11192-009-2095-2

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This study applies the artificial neural network technique to explore the influence of quantitative and qualitative patent indicators upon market value of the pharmaceutical companies in US. The results show that Herfindahl-Hirschman Index of patents influences negatively market value of the pharmaceutical companies in US, and their technological independence positively affects their market value. In addition, this study also finds out that patent citations of the American pharmaceutical companies have an inverse U-shaped effect upon their market value.

引用

页码：637 / 655

页数：19

共 75 条

[1]

[Anonymous], 1994, NEURAL NETWORKS

[2]

[Anonymous], 2004, Journal of Empirical Finance, DOI DOI 10.1016/J.JEMPFIN.2003.01.001

[3]

[Anonymous], 1984, R&D, Patents, and Productivity

[4]

[Anonymous], 1995, SELF ORG MAP

[5]

[Anonymous], S DAKOTA BUSINESS RE

[6]

AUSTIN DH, 1993, AM ECON REV, V83, P253

[7] THE NEW COMPETITIVE LANDSCAPE [J].

BETTIS, RA ;

HITT, MA .

STRATEGIC MANAGEMENT JOURNAL, 1995, 16 :7-19

[8] Market share, market value and innovation in a panel of British manufacturing firms [J].

Blundell, R ;

Griffith, R ;

Van Reenen, J .

REVIEW OF ECONOMIC STUDIES, 1999, 66 (03) :529-554

[9] Internal knowledge generation: the research laboratory and innovative productivity in the pharmaceutical industry [J].

Cardinal, LB ;

Hatfield, DE .

JOURNAL OF ENGINEERING AND TECHNOLOGY MANAGEMENT, 2000, 17 (3-4) :247-271

[10] RECOGNIZING FINANCIAL DISTRESS PATTERNS USING A NEURAL-NETWORK TOOL [J].

COATS, PK ;

FANT, LF .

FINANCIAL MANAGEMENT, 1993, 22 (03) :142-155

← 1 2 3 4 5 6 7 8 →