CHRISTOU, C.; CUNADO, J.; GUPTA, R. Price Convergence Patterns across U.S. States. Panoeconomicus, [S. l.], v. 66, n. 2, p. 187–201, 2018. DOI: 10.2298/PAN160625008C. Disponível em: https://panoeconomicus.org/index.php/jorunal/article/view/408. Acesso em: 31 mar. 2023.