Telecommunications Infrastructure and Economic Development: A Simultaneous Approach
利用21个OECD国家20年数据，联合估计电信投资微观模型与宏观生产函数，发现电信基础设施对经济增长有显著正向因果效应，尤其在接近普遍服务的临界质量时更明显。
In this paper we investigate how telecommunications infrastructure affects economic growth. We use evidence from 21 OECD countries over a 20-year period to examine the impacts that telecommunications developments may have had. We jointly estimate a micromodel for telecommunication investment with a macro production function. We find evidence of a significant positive causal link, especially when a critical mass of telecommunications infrastructure is present. Interestingly, the critical mass appears to be at a level of telecommunications infrastructure that is near universal service.