KIM, Yong Seog; MOFFITT, Clay. Estimating the Direction and Magnitude of Substitution Effects in MLB Event Attendance. International Journal of Engineering and Management Research, [S. l.], v. 16, n. 1, p. 84–94, 2026. DOI: 10.31033/IJEMR/16.1.2026.1840. Disponível em: https://ijemr.vandanapublications.com/index.php/j/article/view/1840. Acesso em: 17 mar. 2026.