Despite consensus about the positive impact of broadband expansion on the economy, from an aggregate perspective, this impact does not seem to be homogeneous for the whole economy. By using a two-way multivariate panel data model subjected to Bayesian estimation, this study aims to determine the effect of broadband expansion on Brazilian economic sectors. To account for regional differences, the sampled data were grouped into clusters (clustering) to spot municipalities with similar characteristics. The results indicate that the impact of broadband expansion is not positive for all sectors. Actually, it was positive in more dynamic and technology-intensive sectors (e.g., industrial and service sectors) but negative for the agricultural sector.

中文翻译：

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评估宽带扩张对经济的影响

尽管人们一致认为宽带扩张对经济的积极影响，但从总体的角度来看，这种影响似乎对整个经济并不具有同质性。通过使用受贝叶斯估计的双向多元面板数据模型，本研究旨在确定宽带扩张对巴西经济部门的影响。为了考虑区域差异，采样数据被分组到集群（聚类）中，以发现具有相似特征的城市。结果表明，宽带扩张的影响并非对所有部门都是积极的。实际上，它对更具活力和技术密集型的部门（例如工业和服务部门）有利，但对农业部门不利。