WEIXIANG, Dr. Gan; QIAORAN, Liu; MENGFEI, Dr. Xiao. From Upward Career-Development Signals to Employee Loyalty: The Mediating Roles of Promotion Opportunity Fairness and Organisational Support Under Resource Concentration in Chinese Private Firms. Global Journal of Education, Finance and Management, [S. l.], v. 2, n. 07, p. 231–250, 2026. DOI: 10.65150/EP-gjefm/V2E7/2026-04. Disponível em: https://gjefm.ep-journals.org/index.php/gjefm/article/view/42. Acesso em: 28 sep. 2026.