Duran, Hasan Engin. “Validity of Okun’s Law in a Spatially Dependent and Cyclical Asymmetric Context”. Panoeconomicus 69, no. 3 (June 1, 2022): 447–480. Accessed May 2, 2024. http://www.panoeconomicus.org/index.php/jorunal/article/view/814.