Resumo
O presente artigo objetiva investigar os determinantes regionais e estruturais do número de ligações entre regiões nas redes de colaborações inventivas brasileiras. Para tanto, utilizam-se dados de copatenteamento entre inventores brasileiros e entre brasileiros e estrangeiros. Como possíveis determinantes do número de ligações, consideram-se tanto os aspectos econômicos quanto os tecnológicos e de densidade demográfica das regiões, além das estruturas de ligações dos nós nas redes. A investigação é realizada com o modelo para dados de contagem, Binomial Negativo Inflado em Zeros (ZINB). Como principais resultados, contatou-se que a formação de laços inter-regionais de patenteamento é afetada positivamente pelo número de ligações internas à região, pela escala de inventores, pelo potencial de realizar P&D empresarial e universitário e, principalmente, pelo grau de centralidade da região. No caso das redes internacionais, realizadas entre inventores brasileiros e estrangeiros, os laços são positivamente afeta os apenas por potencial de P&D, especialmente o empresarial, e grau de centralidade. Além disso, nota-se que o grau de internacionalização de uma rede afeta positivamente o estabelecimento de redes inter-regionais.
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