7Melitz M. The Impact of Trade on Intra - industry Reallocations and Aggregate Industry Productivity [ J ]. Econometrica,2003, (71) :1695 - 1725.
8Yeaple S R. Firm Heterogeneity and the Structure of U. S. Multinational Activity [ J ]. Journal of International Economics,2009, (78) :206 - 215.
9Arellano M, Bond S. Some Tests of Specification for Panel Data: Monte Carlo Evidence and an Application to Employment Equations [ J ]. Review of Economic Studies, 1991, (58) :77 -97.
10Kogut B, Chang S J. Technology Capabilities and Japanese Foreign Direct Investment in the United States [ J]. Review of Economics and Statistics, 1991 (41) : 401 -414.
