4Hansen L P, R J Hodrick. Forward Exchange Pates as Optimal Predictors of Future Spot Rates: An Econometric Analysis [Jl. Journal of Political Economy, 1980, 88(21) :829- 853.
5Johansen S. Estimation ,and Hypothesis Testing of Cointegration Vectors in Gaussian Vector Autoregressive Modem [J]. Econometrica, 1991,59:1551 - 1580.
6Kellard N, P Newbold, T Rayner, C Ennew. The Relative Efficiency of Cenmodity Futures Markets [ J ]. The Journal of Futures Markets, 1999,19:413 - 432.
7Lai K S, M A Lai. Cointegration Test for Market Efficiency [J] .The Journal of Futures Markets, 1991,11:567 - 575.
8Shen C H, L R Wang. Examining the Validity of a Teat of Futures Market Efficiency: A Comment [J]. The journal of Futures Markets, 1990,10:195-196.
9Bigman D, D Goldfarb, E Schechtman. Futures Market Efficiency and the Time Content dthe Infortmation Sets[j]. The Journal of Futures Markets, 1983, 13:321-334.
10Crowder W J,A Hamed. A Cointegration Test For Oil Futures Market Efficiency [J]. The Journal of Futures Markets, 1993, 13:933 - 941.
