China’s coalmining fatalities were 140 times higher than the U.S. in the last decade. To shed light on this issue, we form and examinea unique panel dataset of 25,387 firm-year observations for China’s coalmining industry. We show that a firm’s leverage significantly determines its...

In this paper we review the methods of measuring the economic gains of mergers and acquisitions (M&A). We show that the widely employed event study methodology, whether for short or long event windows, has failed to provide meaningful insight and usable lessons regarding the central question of...

In this paper we investigate the effects of informed trading (PIN) and information uncertainty in determining price momentum. We find that trading strategies based on buying high-uncertainty good-news stocks and shorting high-uncertainty bad-news stocks work well when limited to high-PIN stocks,...