INFORMATION VALUE OF PATENT LITIGATION AND INDUSTRY COMPETITION IN TAIWAN

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Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/26927

Title:	INFORMATION VALUE OF PATENT LITIGATION AND INDUSTRY COMPETITION IN TAIWAN
Authors:	Lee, JD (Lee, Jun-De) Wang, YH (Wang, Yi-Hsien) Lin, CW (Lin, Ching-Wen) Lin, HH (Lin, Hsin-Ham)
Contributors:	Dept Banking & Finance
Keywords:	patent infringement litigation information value enterprise competition abnormal return
Date:	2013
Issue Date:	2014-03-03 11:11:48 (UTC+8)
Abstract:	Internationally, news on patent infringement is often seen, and patent infringement lawsuits affect stock prices. However, fewer studies have discussed how market reflects corporate value and impact of patent infringement lawsuit on investment returns when a patent infringement lawsuit occurs and the news is released. This study applied event study to discuss changes in information value of plaintiffs and defendants, and information value difference of different patent lawsuit sources in competitive environment. The empirical results showed that patent infringement lawsuits may cause negative perception of investors or insider shareholders. This event may become an arbitrage opportunity. Through five forces analysis, the lawsuits from various sources are bad news. Reverse correction is conducted after the event, and makes stock price rational. Thus, in Taiwan market, patent infringement lawsuit is negative news for plaintiff and defendant.
Relation:	TECHNOLOGICAL AND ECONOMIC DEVELOPMENT OF ECONOMY Volume: 19 Issue: 4 Pages: 593-605
Appears in Collections:	[Department of Banking & Finance ] periodical articles

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