The Impact of Margin-Trading and Short-Selling on Stock Price Efficiency-Evidence from the Fifth-Round Ban Lift in the Chinese Stock Market

被引：5

作者：

Chen, Jun ^{[1
]}

Li, Huimin ^{[2
]}

Zheng, Dazhi ^{[2
]}

机构：

[1] Xi An Jiao Tong Univ, Accounting & Finance Dept, Xian, Peoples R China

[2] West Chester Univ, Econ & Finance Dept, W Chester, PA USA

来源：

CHINESE ECONOMY | 2020年 / 53卷 / 03期

关键词：

Margin-trading; short-selling; stock price efficiency; liquidity; information asymmetry; ownership breadth; SHORT-SALES CONSTRAINTS; CROSS-SECTION; LIQUIDITY; RESTRICTIONS; UNCERTAINTY; INFORMATION; OPINION; FUTURES; POLICY; WORLD;

D O I：

10.1080/10971475.2020.1721017

中图分类号：

F [经济];

学科分类号：

02 ;

摘要：

This article investigates how margin-trading and short-selling affect stock price efficiency in the Chinese stock market. Using a sample of 205 stocks that are allowed to do margin-trading/short-selling in China after the fifth-round ban lift in 2014, we conducted fixed-effect panel regressions with three proxies for stock price efficiency. The findings support that price efficiency for these stocks is much higher than those that are not. The stocks that are newly added to the list of margin-trading and short-selling also see their price efficiency improve after the event compared to before the event. During a bull market, short selling improves stock price efficiency possibly through increasing liquidity, less information asymmetry, and broader investor base. On the other hand, during a bear market, margin-trading improves efficiency possibly through only liquidity and ownership breadth channels.

引用

页码：265 / 284

页数：20

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