The market for the credit ratings of Chinese firms is large and growing. We focus our analysis on the firms that have ratings from both domestic and global agencies. Despite the similar symbols, the rating scales of the domestic and global agencies differ: domestic agencies rate firms that are...

This paper analyzes the market manipulation in the Treasury auction market. There exist manipulation strategies for informed manipulation in both discriminatory auction (DA) and uniform price auction (UPA) in equilibrium. The manipulation extent is positively correlated with the potential...

With the samples of stocks which has experienced insider trading in Chinese security market, this article analysis the current characteristics of the insider trading in Chinese security market. It makes empirical description of the insider trading in the follows: the effect of insider trading on...

Based on Allen and Gale (1992), Aggarwal and Wu (2002), this article introduces dynamic transaction costs. So, we can comprehensively and theoretically discuss the major roles of government against stock market manipulation for the first time. First, the government should require all the related...

Under the framework of Rational Expectation Equilibrium (REE), the paper analyzes the impacts of insider trading on the secondary market in the order-driven system. We show that when insider trading is allowed, the average price will not change and there is a positive correlation between the...

Combining Leland (1992), Madhavan (1992) and Repullo (1999) and under the framework of Rational Expectation Equilibrium (REE), the paper analyzes the impact of insider trading on the secondary market with order-driven system. We show that when insider trading is allowed, the average price will...