FLAK, Olaf; PYSZKA, Adrian. The Impact of Corporate Social Responsibility (Csr ) on Companies? Competitiveness ? Proposed Research Directions. Equilibrium. Quarterly Journal of Economics and Economic Policy, Olsztyn, v. 6, n. 4, p. 39–52, 2011. DOI: 10.12775/EQUIL2011.027. Disponível em: https://economic-policy.pl/index.php/eq/article/view/392. Acesso em: 17 jan. 2026.