CABRAL, R.; GONZÁLEZ, F. J. R&D expenditure and productivity in the Mexican manufacturing industry. Estudios Económicos de El Colegio de México, [S. l.], v. 29, n. 1, p. 27–55, 2014. DOI: 10.24201/ee.v29i1.75. Disponível em: https://estudioseconomicos.colmex.mx/index.php/economicos/article/view/75. Acesso em: 23 apr. 2024.