I find evidence of valuable private information in the Chinese stock market. First, Chinese actively managed stock mutual funds outperform passive benchmarks including market, size, value, and momentum factors. Most funds appear to have skill, and much of that skill consists of stock-picking...

We examine stock trading activities in days before Chinese listed firms made public announcement to start share-structure reform. There is significant evidence that, relative to a benchmark period, institutional investors bought more event firms' shares in the last two trading days prior to...

Share repurchase conveys information to investors and influences stock price in capital market. Normally when a company announces share buyback, the company's stock price will rise immediately. Thus, some insiders may take advantage of this pattern and create a fake repurchase event. When the...

This paper shows that real decisions depend not only on the total amount of information in prices, but the source of this information -- a manager learns from prices when they contain information not possessed by him. We use the staggered enforcement of insider trading laws across 27 countries...

We investigate whether access to information prior to an IPO generates a trading advantage after the IPO. We find that limited partners (LPs) of venture capital funds obtain high returns when they invest in newly listed stocks backed by their funds. These returns are not explained by LPs'...

The present study contributes to the ongoing debate on possible costs and benefits of insider trading. We present a novel call auction model with insider information. Our model predicts that more insider information improves informational efficiency of prices, but this comes at the expense of...

This note provides the details of the estimation procedure in Br¨unner (2019). In Section 2 we derive the posterior distribution. Section 3 describes the MCMC algorithm used to obtain draws from the posterior distribution and in Section 4 we present the method for our model check. We conclude...

The study finds that insiders' purchases in large firms precede the patent applications for innovations. US publicly held large firms increase their innovation quality by 25% subsequent to the share purchase of top insiders, as measured by non-self citations received per patent applied. The...

I study the information content of corporate insiders' purchases when their firms experience sharp increases in short interest. Insider purchases mitigate the negative impact of short selling on stock prices, but this effect is temporary and reverts within one year. The cumulative abnormal...

Research argues that short sellers are informed investors as current short selling relates inversely with future returns. However, empirical results have yet to determine whether short sellers trade on private information before, say, an upcoming negative new. This paper takes a step in this...