7Porter, Michael E., ed, Competition in Global Industries, Harvard Business School Press, 1986.
8Keith Head, John Ries, 2002. Offshore production nd skill upgrading by Japanese manufacturing firms,Journal of International Economics 58(2002), pp.81-105 .
9Johns, R.W., Kierzkowski, H., 1997. Globalization and the consequences of international fragmentation,Manuscript .
10Markusen, J.R., 1995. The boundaries of multinational enterprises and the theory of international trade. Journal of Economics Perspectives 9, pp. 169-189.