7DEARDORFF A V. 1980. The general validity of the law of comparative advantage [J]. The Journal of Political Economy, 88:941 -957.
8FEENSTRA R C,HAI W,LEWIS F,et al. 1998. The U. S. -China bilateral trade balance: its size and determinants [ R]. NBER Working Paper No. 6598.
9FUNG K C, LAU L J. 1998. The China-United States bilateral trade balance: how big is it really [J]. Paeitlc Economic Review, 3:33 -47.
10FUNG K C, LAU L J. 2003. Adjusted estimates of United States-China bilateral trade balance: 1995 - 2002 [ J]. Journal of Asian Economics,14: 489-496.
