Araujo, Veneziano de Castro, and Renato Garcia. “Determinants and Spatial Dependence of Innovation in Brazilian Regions: Evidence from a Spatial Tobit Model :”. Nova Economia 29, no. 2 (October 11, 2019): 375–400. Accessed July 18, 2024. https://revistas.face.ufmg.br/index.php/novaeconomia/article/view/4456.