5Bernard, A. B, Jensen, J. B, Redding, S.J. and Schott, P. K. Wholesalers and Retailers in U. S. Trade [ J 1. American Economic Review, 2010,100 (2) : pp. 408 - 413.
6Blum, B. S. ; Horstmann, I. and Claro, S. Facts and Figures on Intermediated Trade [ J ]. American Economic Review, 2010,100 (2) : pp. 419 - 423.
7Ahn, J. ; Khandelwal, A. K. and Wei, S. J. The Role of Intermediaries in Facilitating Trade [ J ]. Jour- nal of International Economics, 2011,84 ( 1 ) : pp. 73 85.
8Ekholm, K. , Forslid, R. and Markusen, J. R. Export- Platform Foreign Direct Investment [ J]. Journal of the European Economic Association, 2007, 5 (4) : pp. 776 - 795.
9Hanson, G., Mataloni, R. J. and Slaughter, M. Expansion Strategies of U.S. Multinational Firms. In Rodrik D. and Collins S. eds. , Brookings Trade Forum [ M ~. Washington, DC : Brookings Institution Press, 2001 : pp. 457 - 510.
10Blonigen, B. A., Davies, R. B., Waddell, G. R. and Naughton, H. T. FDI in Space: Spatial Au- toregressive Lags in Foreign Direct Investment[ J]. Euro- pearl Economic Review, 2007, 51 (5) : pp. 1303 -1325.