5James E Anderson. The gravity model [ J ]. Annual Review of Economics ,2011 (3).
6ALAN Deardorff. Determinants of bilateral trade: Does gravity work in a neoclassical world? [ R]. NBER Chapters, The Regionalization of World Economy, 1998:7-32.
7ANDERSON James E. A theoretical foundation for the gravity equation [ J ]. American Economic Review, 1979,69 : 106-116.
8BERGSTRAND Jeffrey H. The gravity equation in international trade: Some microeconomic foundations and empirical evidence [ J ]. Review of Economics and Statistics, 1985,67 (3) :474-481.
9BERGSTRAND Jeffrey H. The generalized gravity equation, monopolistic competition, and the Factor-Proportions theory in international trade [ J ]. Review of Economics and Statistics, 1989,71 ( 1 ) : 143-153.
10MARC J Melitz. The impact of trade on intra-industry reallocations and aggregate industry productivity [ J ]. Econometrica,2003,71 (6) : 1695-1725.
