This study examines whether and how economic shocks from natural disasters propagate through supply chains to regions not directly hit by disasters. Although such propagation has been studied, less attention has been paid to heterogeneity across network characteristics of firms. Focusing on the impacts of a hurricane and using firm-level data for major firms in the world that include supply-chain ties among them, we find evidence of the intra-national propagation of the shock in the United States. Our results further suggest that both input specificity and network density are important determinants of the level of propagation.

中文翻译：

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经济冲击通过全球供应链传播——来自飓风桑迪的证据

本研究考察了自然灾害造成的经济冲击是否以及如何通过供应链传播到未直接受灾害影响的地区。尽管已经研究了这种传播，但对跨公司网络特征的异质性的关注较少。关注飓风的影响并使用世界上主要公司的公司级数据，其中包括它们之间的供应链关系，我们发现了冲击在美国国内传播的证据。我们的结果进一步表明，输入特异性和网络密度都是传播水平的重要决定因素。