Bolińska, Monika, Paweł Dykas, Grzegorz Mentel, and Tomasz Misiak. “Demographic Forecasts and Volatility of Investment Rates Vs. Labor Productivity Trajectories”. Journal of Business Economics and Management 20, no. 6 (August 27, 2019): 1045-1063. Accessed December 13, 2019. https://journals.vgtu.lt/index.php/JBEM/article/view/10446.