NELL, K. S.; THIRLWALL, A. Why does the productivity of investment vary across countries?. PSL Quarterly Review, [S. l.], v. 70, n. 282, p. 213–245, 2017. DOI: 10.13133/2037-3643_70.282_1. Disponível em: https://rosa.uniroma1.it/rosa04/psl_quarterly_review/article/view/14005. Acesso em: 19 apr. 2024.