7Wang, H. Holly, Bingfan Ke. Efficiency Tests of Agricultural Commodity Futures Markets in China [ J ] . Australian Journal of Agricultural and Resource Economics,2005, 49(2) :125 -141.
8Granger C. , R. P. Robins and R. F. Engle. Wholesale and Re- tail Prices: Bivariate Time Series Modeling with Forecastable Er- ror Variances, in Belsley, D. A. and E. Kuh ( eds. ) , Model Reliability[ M]. Cambridge: MIT Press, 1986.
9Hong Y.. A Test for Volatility Spillover with Applications to Ex- change Rates[ J]. Journal of Econometrics, 2001,103 ( 1 - 2) : 183 - 224.
10Karpoff, J. M.. The Relation between Price Changes and Trading Volume: A Survey[ J]. Journal of Financial and Quanti- tative Analysis, 1987, 22( 1 ).
