3David,L. Hummels, Dana Rapoport, and Kei-Mu Yi. Vertical Specialization and the Changing Nature of World Trade[J]. Federal Reserve Bank of New York Economic Policy Review, 1998,4(2):79-99.
4RAM,Mudambi. Offshoring: Economic Geography and the Muhinational Firm[J]. Journal of International Business Studies, 2007,38 ( 1 ) : 206-207.
5Liou,F.M., Y.C. Tang, and C.P. Huang. Asset-light Business Model.A Theoretical Framework for Sustained Competitive Advantage[R]. Proceeding of Eighth International Business Research Conference,Dubai, 2008.