The authors study a simple model of an asset market with informed and non-informed agents. In the absence of non-informed agents, the market becomes information efficient when the number of traders with different private information is large enough. Upon introducing non-informed agents, the...

A rational-expectations equilibrium with positive demand for financial information does exist under fully revealing asset price - contrary to a wide-held conjecture. Generalizing the common additive signal-return model with CARA utility to the family of distributions with moment generating...

The authors study a simple model of an asset market with informed and non-informed agents. In the absence of non-informed agents, the market becomes information efficient when the number of traders with different private information is large enough. Upon introducing non-informed agents, the...

This research link market microstructure with efficiency. Liquidity and volatility are linked with time-varying informational efficiency of the Asian emerging economies. Three measures are used for each variable. Using SGMM, this study finds that both variables have significant role in driving...

Existing studies on the impact of social media on the information efficiency of capital markets have opposing views. As a core feature of social media, the role of investor interaction is often overlooked. To fill this gap, using the social network analysis (SNA) method, we examine the...

Existing studies on the impact of social media on the information efficiency of capital markets have opposing views. As a core feature of social media, the role of investor interaction is often overlooked. To fill this gap, using the social network analysis (SNA) method, we examine the...

The random inspection of the China Securities Regulatory Commission (CSRC) is an important policy for practicing "standardizing regulatory behavior and innovating management modes". This study investigates how CSRC's random affect capital market information efficiency from the perspective of...