Do Poor Countries Really Need More IT?
研究了信息技术采用与收入之间的跨国关系，发现两者正相关但随时间减弱，在调整产业结构差异后，收入与信息技术能力之间并无系统关联。
Abstract Productivity differences across countries are often attributed to differences in technological capabilities. This paper asks whether there are systematic cross-country differences in the adoption of information technologies (IT). We document a positive correlation between IT use and income, which weakens over time. However, given that IT use is an endogenous outcome of both technological capabilities and the abundance of complementary factors of production, it tends to over-state the degree of cross-country differences in technology. We propose two novel calibration approaches to address this problem. After accounting for endogenous differences in industrial composition, we find that there is no systematic relationship between income and IT capabilities.