Norkus, Zenonas. “Catching Up And Falling Behind: Four Puzzles After Two Decades Of Post-Communist Transformation”. Comparative Economic Research. Central and Eastern Europe 18, no. 4 (December 17, 2015): 63–79. Accessed December 10, 2025. https://www.czasopisma.uni.lodz.pl/CER/article/view/7084.