1. The simple analytics of welfare maximisation;Bator;American Economic Review,1957
2. Optimal departures from marginal cost pricing;Baumol;American Economic Review,1970
3. The theory of tariffs, taxes and subsidies: Some aspects of the second best;Bertrand;American Economic Review,1971
4. The theory and practice of commercial policy: Departures from unified exchange rates;Shagwati,1968
5. The generalized theory of distortions and welfare;Bhagwati,1971