ZIELENKIEWICZ, Małgorzata. The role of the level of development, geographical factors, and culture for the efficacy of economic freedom. Equilibrium. Quarterly Journal of Economics and Economic Policy, Olsztyn, v. 10, n. 4, p. 85–98, 2015. DOI: 10.12775/EQUIL.2015.036. Disponível em: https://economic-policy.pl/index.php/eq/article/view/190. Acesso em: 22 jan. 2026.