7Grossman,G.M.and Krueger,A.B.,1991,"Environ-mental Impacts of a North American Free Trade Agree-ment",National Bureau of Economic Research Working Pa-per,No.3914.
8Dasgupta,S.,Laplante,B.,Wang,H.and Wheeler,D.,36--2002,"Confronting the Environmental KuznetsCurve",Journal of Economic Perspectives,Vol.16,pp.147~168.
9Shafik,N.,Bandyopadhyay,S.,1992,"Economic Gro-wth and Environmental Quality:Time Series and Cross-country Evidence",World Bank Policy Research WorkingPaper,No.904.
10Selden,T.M.and Song,D.,1994,"EnvironmentalQuality and Development:Is There a Kuznets Curve forAir Pollution Emissions?",Journal of Environmental E-conomics and Management,vol.27,pp.147~162.