Aid to the Services Sector: Does It Affect Manufacturing Exports?
Esteban Ferro, Alberto Portugal-Perez, John S. Wilson
World Economy, vol. 37, 2014, p. 530-541.

Preferential Market Access Design: Evidence and Lessons from African Apparel Exports to the United States and the European Union
Jaime Melo, Alberto Portugal-Perez
World Bank Economic Review, vol. 28, 2014, p. 74-98.

Export Performance and Trade Facilitation Reform: Hard and Soft Infrastructure??
Alberto Portugal-Perez, John S. Wilson
World Development, vol. 40, 2012, p. 1295-1307.

Assessing the Political Economy Factors on Trade Integration: Rules of Origin under NAFTA
Alberto Portugal-Perez
Journal Of Economic Integration, vol. 26, 2011, p. 276-305.