When Do Global Pipelines Enhance the Diffusion of Knowledge in Clusters?
构建了一个正式模型，研究全球管道在何种集群特征（如规模、知识禀赋、内部知识传播难易度）下能增加本地知识，发现全球管道中的参与者更倾向于成为外部明星而非知识守门人，仅当集群具有高质量本地信息流或规模小且知识禀赋弱时才有益。
abstract Recent studies have stressed the role played by global pipelines in fostering the growth of clusters and innovativeness. In this article, we develop a formal model to investigate when global pipelines contribute to an increase in local knowledge, depending on various characteristics of clusters such as size, knowledge endowment, and the ease of transmission of internal knowledge. This model is an extension of C owan and J onard's ( ) model in which we introduce the concept of cluster and a role for spatial proximity in the diffusion of knowledge. Our results reveal that there is a natural tendency of actors within global pipelines to act as external stars, rather than gatekeepers of knowledge. Global pipelines are beneficial for the accumulation of knowledge only if the cluster is either characterized by a high‐quality local buzz or is small and weakly endowed in terms of knowledge.