JAKIMOWICZ, Aleksander; RZECZKOWSKI, Daniel. Do barriers to innovation impact changes in innovation activities of firms during business cycle? The effect of the Polish green island. Equilibrium. Quarterly Journal of Economics and Economic Policy, [S. l.], v. 14, n. 4, p. 631–676, 2019. DOI: 10.24136/eq.2019.030. Disponível em: https://journals.economic-research.pl/eq/article/view/1746. Acesso em: 19 jul. 2024.