Mousavian SH, Afsharirad M, Daman keshideh M, Hajihassani F. The Effects of Credit Friction on the Productivity Index: Emphasizing Oil Price and Exchange Rate Changes Using the Mixed Data Sampling (MIDAS) Model. DMBA [Internet]. 1405 Jul. 1 [cited 2026 Oct. 7];5(3):1-17. Available from: https://www.dmbaj.org/index.php/dmba/article/view/320