GONZALEZ, Germán H. Productivity Gap and Asymmetric Trade Relations: The Canada-United States of America Integration Process. Economia, [S. l.], v. 37, n. 73, p. 31–46, 2014. DOI: 10.18800/economia.201401.002. Disponível em: https://revistas.pucp.edu.pe/index.php/economia/article/view/10083. Acesso em: 28 dec. 2025.