ROBERTO LÓPEZ, J. Market efficiency, purchasing power parity and cointegration in Central American black foreing exchange markets. Estudios Económicos de El Colegio de México, [S. l.], v. 8, n. 1, p. 111–153, 1993. DOI: 10.24201/ee.v8i1.290. Disponível em: https://estudioseconomicos.colmex.mx/index.php/economicos/article/view/290. Acesso em: 26 may. 2024.