1. Boeri, T. and H. Brucker (2000). ‘The Impact of Eastern Enlargement on Employment and Labour Markets in the Member States’, Financial Times, 27 June: 15.
2. Craig, R. B. (1971). The Bracero Program: Interest Groups and Foreign Policy, Austin, TX: University of Texas Press.
3. Estudios Económicos y Socio-Políticos de México (n.d.). Available at: www.banamex. com/weblogic/svltC71930EstSE?LNG=1&SEQ=3&folio=5.
4. Hamilton, B. and J. Whaley (1984). ‘Efficiency and Distributional Implications of Global Restrictions on Labour Mobility’, Journal of Development Economics, 14: 61–75.
5. Heckscher, E. (1949). ‘The Effects of Foreign Trade on the Distribution of Income’, in H. S. Ellis and L. A. Metzler (eds), Readings in the Theory of International Trade, Philadelphia: Blakiston.