Business Commons^™

The Real Effect Of The Initial Enforcement Of Insider Trading Laws, Zhihong Chen, Yan Huang, Yuanto Kusnadi, K. C. John Wei

Research Collection School Of Accountancy

Based on a difference-in-differences approach, we find strong evidence that the initial enforcement of insider trading laws improves capital allocation efficiency. The effect is concentrated in developed markets and manifests shortly after the enforcement year. Further analysis shows that the improvement is positively associated with the increase in liquidity around the enforcement year and the opaqueness of the information environment before the enforcement year. The improvement is more pronounced for firms operating in more competitive markets, being more financially constrained, and with more severe agency problems. Finally, we find increased accounting performance after the enforcement and the increase is positively …