4Arndt, S. and Kierzkowski, H. ,2001. Fragmentation: New Production Patterns in the World Economy. Oxford:Oxford University Press.
5Ciccone, A. and Robert, E. Hall, 1996. "Productivity and the Density of Economic Activity." American Economic Review, Vol. 86( 1 ), pp.54 - 70.
6Dunning,John H., 1981. International Production and Multinational Enterprise. London: Geoge Allen and Unwin.
7Kogut, B., 1985. “Designing Global Strategies:Comparative and Competitive Value- added Chains.” Sloan Management Review, Vol. 26(4) ,pp. 15 - 27.
8Krugman, Paul, 1995. Growing World Trade. Brookings Papers on Economic Activity 1.
9Bazan, Luiza and Navas- Aleman, Lizbeth, 2004. “The Underground Revolution in the Sinos Valley:a Comparison of Upgrading in Global and National Value Chains, ”in Hubert Schmitz, ed., local Enterprises in the Global Economy: Issues of Governance and Upgrading. Chehenham. UK: Edward Elgar Pub., pp. 110 - 139.
10Vernon, Raymond, 1966 ." International Investment and International Trade in the Product Cycle. "The Quarterly Journal of Economics, Vol. 80 (2), pp. 190 - 207.
