1. See, for example, The World Bank: Global Economic Prospects, Washington D.C. 2001.
2. Arthur M. Okun: Equality and Efficiency — The Big Tradeoff: Washington D.C. 1975, The Brookings Institution.
3. Ibid..
4. For a more detailed discussion see Aaditya Mattoo: MFN and the GATS, in: Thomas Cottier, Petros Mavroidis (eds.): Regulatory Barriers and the Principle of Non-Discrimination in World Trade Law, Ann Arbor 2000, The University of Michigan Press.
5. World Trade Organization: Market Access: Unfinished Business, Special Studies No. 6, Geneva 2001.