AKBULUT YILDIZ, Gizem; YILDIZ, Barış. The Validity of the Convergence Hypothesis within the Framework of the Middle Income Trap: New Evidence from the Fourier Panel KPSS Test. Panoeconomicus, [S. l.], p. 1–30, 2026. DOI: 10.2298/PAN221204006A. Disponível em: https://panoeconomicus.org/index.php/jorunal/article/view/1815. Acesso em: 5 jun. 2026.