CHENG, Jin. The Substitution Elasticity of Cotton Imports between China and the United States——Based on the Armington Model. Highlights in Business, Economics and Management, [S. l.], v. 57, p. 248–253, 2025. DOI: 10.54097/xmy1dh71. Disponível em: https://hbem.org/index.php/OJS/article/view/494. Acesso em: 2 sep. 2026.