1. Bhagwati, J.N. and Srinivasan, T.N. (1983), Lectures on International Trade (Cambridge, MA: MIT Press), chs 2–4.
2. Chacholiades, M. (1973), The Pure Theory of International Trade (London: Maemillan).
3. Findlay, R. (1988), “Comparative Advantage”, in J. Eatwell, M. Milgate and P. Newman (Eds.), The New Palgrave: A Dictionary of Economics (London: Macmillan), 514–517.
4. Ricardo, D. (1821), The Principles of Political Economy and Taxation (London: J. Murray).
5. Bernard, A.B., Eaton, J., Jensen, J.B., and Kortum, S. (2003), “Plants and Productivity in International Trade”, American Economic Review 93(4), 1268–1290.