Rydarowska-Kurzbauer, J. 2012. GDP Fluctuation and Changes in Consumption and Investment. Comparative Analysis of Polish Economy and Some Countries of the European Union. Equilibrium. Equilibrium. Quarterly Journal of Economics and Economic Policy. 7, 3 (Jun. 2012), 43–53. DOI:https://doi.org/10.12775/EQUIL.2012.018.