Abstract

http://ssrn.com/abstract=1915284
 


 



Insider Trading Regulation in Japan


J. Mark Ramseyer


Harvard Law School

August 23, 2011

Harvard Law, Economics and Business Discussion Paper No. 705

Abstract:     
The U.S.-controlled occupation imposed on Japan in the late 1940s an American-style securities statute. The U.S. statute did not ban insider trading at the time, and neither did the new Japanese law. Not until the 1960s did U.S. prosecutors and judges start to criminalize insider trading. Their Japanese counterparts did not follow their lead, and as of the mid-1980s had left insider trading largely unpoliced.

In 1988, the Japanese Diet banned and criminalized insider trading. Rather than use a vague rule like 10b-5, it carefully specified which investors, which trades, and which contexts would trigger the ban. In 2004, it added an administrative surcharge regime.

Commentators in Japan ostensibly urged the Diet to adopt the bill because they hoped to restore investor confidence in the stock market. If the ban restored investor confidence, it did not show. Shortly after the ban took effect, the Japanese stock market collapsed.

Number of Pages in PDF File: 18

JEL Classification: G14

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Date posted: August 23, 2011  

Suggested Citation

Ramseyer, J. Mark, Insider Trading Regulation in Japan (August 23, 2011). Harvard Law, Economics and Business Discussion Paper No. 705. Available at SSRN: http://ssrn.com/abstract=1915284 or http://dx.doi.org/10.2139/ssrn.1915284

Contact Information

J. Mark Ramseyer (Contact Author)
Harvard Law School ( email )
1575 Massachusetts
Hauser 406
Cambridge, MA 02138
United States
617-496-4878 (Phone)
617-496-6118 (Fax)
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