On the Informational Content of "Technology" Variables in Explaining Trade Patterns
Anthony Courakis, Fátima Moura Roque
vol. 10, 1988, p. 287-322.

More Goods than Factors in International Trade Once Again
Luis Campos e Cunha
vol. 9, 1987, p. 183-197.

Stabilization under Rigidity
António Pinto Barbosa
vol. 9, 1987, p. 147-161.