This paper estimates the effects of transport (road and rail) & energy and ICT infrastructure (telephone, mobile, and broadband) on GDP growths in neighboring countries as well as own countries. We confirm positive direct contributions of infrastructure, access to Internet, and human capital on economic growth. The spatial panel regression models indicate that there exist positive externalities of the broadband infrastructure and human capital, and these results are robust regardless of the choice of spatial weight matrices. Our findings on spillover effects of infrastructure suggest the key role of neighboring countries’ infrastructure on own country’s economic growth.

中文翻译：

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基础设施的好处和溢出效应：一种空间计量经济学方法

本文估计了交通（公路和铁路）以及能源和 ICT 基础设施（电话、移动和宽带）对邻国和本国 GDP 增长的影响。我们确认基础设施、互联网接入和人力资本对经济增长的积极直接贡献。空间面板回归模型表明，宽带基础设施和人力资本存在正外部性，无论空间权重矩阵的选择如何，这些结果都是稳健的。我们关于基础设施溢出效应的研究结果表明，邻国基础设施对本国经济增长的关键作用。