Time is the enemy: The speed of proximity‐based knowledge diffusion
研究美国半导体行业跨国公司子公司的知识扩散，发现专利引用的知识来源越广，知识向邻近企业扩散的速度反而比向远距离企业更慢，原因可能是更多依赖内部或远距离知识源。
Abstract Does knowledge spread more quickly when firms are geographically closer? Focusing on knowledge diffusion from multinational enterprises (MNEs) subsidiaries in the context of the US semiconductor industry, our analysis suggests that the broader MNE patents are, in terms of the knowledge sources they draw on, the slower the speed of knowledge diffusion to more spatially proximate firms, compared to more distant ones. Moreover, our findings suggest that this outcome could be attributed to a greater reliance on knowledge sources that are internal to the MNE network or located geographically distant. We provide interpretative cues for these findings and provide policy recommendations in line with our results.