1. Economic integration in Central America,1978
2. An extension of the Kemp-Wan theorem on the formation of customs unions;Grinols;Journal of International Economics,1981
3. Revealed preference, foreign investment and trade: Some issues;Grinols,1982
4. Welfare comparisons of trade equilibria;Grinols,1982
5. Movements in U.K. costs and prices;Hickling,1981