4Casson Mark,1991."Internalization Theory and Beyond",in:P.J.Buckley (ed.),Recent Research on the Multinational Enterprise,London,Edward Elgar,pp.4-27.
5Cheng W.,Sachs J.and Yang X.,2000."An Inframarginal Analysis of the Ricardian Model." Review of International Economics,Vol.8,May,pp.208-220.
6Dunning John H.,1988."Trade,Location of Economic Activity and the Multinational Enterprise:A Search for an Eclectic Approach",in:Dunning John H.,Explaining International Production,London,Unwin Hyman,pp.32-37.
7Vernon Raymond,1966."International Investment and International Trade in the Product Cycle",Quarterly Journal of Economics,Vol.80:190-207.
