1U.S.Departmentof Commerce. Survey of Current Business[Z].2011.118-119.
2Ian F.Fergusson,Bruce Vaughn. The Trans-Pacific Partnership Agreement[M].Congressional Research Service,2011.5.
3Yunling Zhang,Minghui Shen. " The Status of East Asian Free Trade Agreements",ADBI Working Paper Series,No.282[R].2011.6.
4Daniel Sullivan. The Administration's Focus on Promoting Free Trade and Enhancing U.S.Trade and Export Opportunities[M].Assistant Secretary of State for Economic,Energy and Business Affairs,2008.
5Richard Baldwin. "A Domino Theory of Regionalism",NBER Working Paper,No.4465[R].1993.
3Richard G. Lipsey, Canada and the U. S.-Mexico Free Trade Dance : Wallflower or Partner? Toronto: C.D.,Home Institute, 1990.
4Ronaid J. Wonnacott, US Hub and Spoke Bilaterals and the Multilateral Trading System, Toronto : C.D., Howe Institute, 1990.
5Ronald J. Wonnacott, “Canada's Future in a World of Trade Blocs: A Proposal,”Canadian Public Policy, Vol.1,No.1,1975,pp. 118-130.
6Ronald J. Wonnacott,“Controlling Trade and Foreign Investment in the Canadian Economy: Some Proposals,”The Canadian Journal of Economics, Vol.15,No.4,1982,pp.567-585.
7Yung C. Park and Jung Ho Yoo, “More Free Trade Areas: A Korean Perspective,” in Jeffrey J. Schott, ed., Free Trade Areas and U.S.Trade Policy,Institute for International Economics,Washington,D. C., 1989.
8Ronald J. Wonnacott, “Canada's Future in a World of Trade Blocs: A Proposal.”pp. 118-130.
9Ronald J. Wonnacott, "Trade and Investment in a Hub and Spoke System Versus a Free Trade Area," The World Economy,Vol.19,No.3,1996,pp.237-252.
10Carsten Kowalczyk and Ronald J. Wonnacott,"Hubs and Spokes, and Free Trade in The Americas," NBER Working Paper,No.4198,October 1992.