41.Tobey, J.A.The Effects of Domestic Environmental Policies on Patterns of World Trade: An Empirical Test.Kyklos, 1990, 43(2): 191-209.
42.Vernon, R.International Investment and International Trade in the Product Cycle.The Quarterly Journal of Economics, 1966, 80(2): 190-207.
43.Walter, I.Interregional and Regional Input-output Analysis: A Model of a Space-Economy.The Review of Economics and Statistics, 1975, 33(4): 318-328.
44.Water, I.International Economics of Pollution.New York: Halstead Press, 1988.
