International connectivity is a multidimensional construct that plays a pivotal role in attracting the activities of multinational enterprises (MNEs) by facilitating intra-firm coordination and access to external resources. We conceptualize how the different dimensions of international connectivity determine the location of MNEs' knowledge-intensive activities, with a focus on Research and Development (R&D) laboratories and Headquarter units (HQ). By analyzing 3,101 greenfield investments of MNEs in US Metropolitan Statistical Areas, we show that R&D activities are attracted toward areas connected to the rest of the world by international networks of inventors. Moreover, we find that infrastructures which ensure the mobility of people across borders, and greater connectivity through advanced producer services are key location factors for HQ activities.

中文翻译：

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国际连通性和跨国企业知识密集型活动的位置：来自美国大都市地区的证据

国际连通性是一个多维结构，通过促进公司内部协调和获取外部资源，在吸引跨国企业 (MNE) 的活动方面发挥着关键作用。我们将国际连通性的不同维度如何确定跨国企业知识密集型活动的位置进行概念化，重点关注研发 (R&D) 实验室和总部单位 (HQ)。通过分析跨国公司在美国大都市统计区的 3,101 项绿地投资，我们表明研发活动被国际发明者网络吸引到与世界其他地区相连的地区。此外，我们发现确保人员跨境流动的基础设施，