A Provincial Perspective of Nonlinear Okun’s Law for Emerging Markets: the Case of South Africa. Studia Universitatis Vasile Goldiș Arad, Seria Științe Economice, [S. l.], v. 30, n. 3, p. 59 –76, 2020. Disponível em: https://publicatii.uvvg.ro/index.php/studiaeconomia/article/view/651. Acesso em: 15 apr. 2026.