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This paper investigates the impact of winning quality award on short-term and long-term stock prices in the mainland of China. Our results show that the award winners get significantly positive abnormal returns in the stock market at short run. The quality awards have a distinct stock price effect to large firms, and that the China Quality Award (CQA) winners get more abnormal returns than that of...
This paper checks that the arbitrage theory of capital asset pricing is as applicable in Chinese security market as in those of developed countries such as U.S... A regression model is used to make an empirically test by selecting company size, the ratio between market value and book value and the price earning ratio as three influence factors of stock returns, and using panel data on arbitrage pricing...
Internet security in stock market was the topic in this paper. Decision-tree induction is effective for examining the factors influencing abnormal stock market returns after a public security breach announcement. Extending a previous study, the authors identify new relationships between abnormal returns and firm and attack characteristics and subject them to statistical testing.
This study investigates the effects of IT service failures on market values of companies that announce their IT service failures. To measure the effects of IT service failures on stock prices of the responsible companies, we examine the stock price changes before and after IT service failure announcements. The results show that the stock price reactions to IT service failure announcements are negative...
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