Tiwari, A. K., Islam, F., Bolat, S., Kyophilavong, P. and Kim, B. (2017) “The Stationary of Productivity Shocks: Evidence from 25 OECD and Big 7 Countries”, International Journal of Economics and Financial Issues, 7(1), pp. 613–618. Available at: https://www.econjournals.com/index.php/ijefi/article/view/3781 (Accessed: 25 April 2024).