5Hsiech D A , Miller M H. Margin regulation and stock market volatility[ J ] .Journal of Finance, 1990(45) : 1.
6Rougier J. The impact of margin-traders on the distribution of daily stock returns [J].the London Stock Exchange, Applied Financial Economics, 1993(3 ):4.
7Grube R C, Joy M O,Panton B. Market responses to federal reserve changes in the initial margin requirement [J].Journal of Finance, 1979 (34) : 3.
