Capítulo 3 de Gerber, James (2023). International Economics (8va ed.). Pearson. 

Bernhofen, Daniel M., y Brown, John C. (2004). An Empirical Assessment of the Comparative Advantage Gains from Trade: Evidence from Japan. American Economic Review, 95(1), 208-225. https://doi.org/10.1257/0002828053828491

Bernhofen, Daniel M., y Brown, John C. (2004). A Direct Test of the Theory of Comparative Advantage: The Case of Japan. Journal of Political Economy, 112(1), 48-67. https://doi.org/10.1086/379944