We study a duopoly where the two price setting firms have symmetric information. The firms produce substitute goods with a state dependent common value. The information that is available to both firms about the unknown state of nature is also available to the consumers, who also have access to...

Based on the data of companies listed on A-share market from the year 2001 to 2009, this paper measures product market power and the information content of stock price by using an event study method. Then I explore the relationship between product market power, corporate governance and the...

Based on the data of companies listed on A-share market during the year 2001 to 2009, this paper explores the relationship between product market power and trade volume in the view of heterogeneous beliefs. It's found that the improvement of product market power significantly promotes trading,...