Off the Hook: Measuring the Impact of Mobile Telephone Use on Economic Development of Households in Uganda using Copulas
利用乌干达家庭调查数据，采用Copula方法处理内生性，发现移动电话使用对家庭收入有正向影响，为发展经济学提供了新证据。
It is now widely understood that mobile phone use has beneficial effects on development in developing countries, but little is known about the effects at the household level. We examine the impact of mobile telephone use on household income using a unique cross-sectional data set from Uganda. We use a novel econometric technique to handle endogeneity, which models the correlation between the endogenous regressor and the error term with copulas. To the best of our knowledge, this is the first time that the copula method has been applied in the economic development literature. We find a positive impact of mobile phone use on income.