5Balassa, B. , (1966) "Tariff Reduction and Trade in Manufactures Among the Industrial Countries. " The American Economic Review, 56,466 -473.
6Balassa, B. and L. Bauwens, (1987) "Intra-Industry Specialization in a Multi-Industry Framework. " Eco- nomic Journal, 97,923 -939.
7Bernhofen, Daniel M. , 1999, Intra-Industry Trade and Strategic Interaction : Theoryand Evidence, Journal of International Economics, 47 : 225 - 244.
8Clark, P. D. , 1998, Determinants of Intra-industry Trade between the United States and Industrial Nations, The International Trade Journal, 12:345 -362.
9Cooper, D., D. Greenaway, and A. Rayner, 1993, Intra-Industry Trade and Limited Producer, Wel- wirtsehaftliches Archiv, 129 : 345 - 366.
10Donghui li, Fariborz Moshirian and Ah-Boon Sim, (2003) "The Determinants of Intra-Industry Trade in Insurance Services, " The Journal of Risk and Insurance, 70, 269 -287.