The main goal of this paper is to evaluate the role of inventor mobility and inventive collaboration in Brazilian regional innovation. We take into account the regional knowledge production function (RKPF) to incorporate the regional interactions promoted by these two important knowledge diffusion channels. Using a dynamic panel with data from a unique combination of the Intellectual Property Database for Statistical Purposes (BADEPI v1.0) and the Annual Social Information Report of the Labor Ministry (RAIS), we estimate the interregional inventor mobility and co-invention using a Poisson-Pseudo Maximum Likelihood estimator, and the RKPF using a system Generalized Method of Moments (GMM) estimator. Our results show that: (a) space exerts a relevant influence on an inventor’s decision to migrate and to collaborate to innovate; (b) inventor mobility among Brazilian regions promotes regional innovation; (c) regional collaboration significantly contributes to regional innovation.

中文翻译：

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巴西的知识传播渠道：发明人流动和发明合作对区域发明的影响

本文的主要目标是评估发明者流动和发明合作在巴西区域创新中的作用。我们考虑了区域知识生产函数 (RKPF)，以纳入这两个重要的知识传播渠道促进的区域互动。使用来自用于统计目的的知识产权数据库 (BADEPI v1.0) 和劳工部年度社会信息报告 (RAIS) 的独特组合数据的动态面板，我们使用泊松伪最大似然估计器，以及使用系统广义矩法 (GMM) 估计器的 RKPF。我们的结果表明：(a) 空间对发明者迁移和合作创新的决定产生相关影响；(b) 巴西地区之间的发明者流动促进了地区创新；(c) 区域合作极大地促进了区域创新。