ICT and Growth: The Role of Rates of Return and Capital Prices
ICT and Growth: The Role of Rates of Return and Capital Prices
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ICT 与增长：回报率和资本价格的作用
DOI：
10.1111/roiw.12168
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Marianne Saam
中科院分区：
文献类型：
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作者：
Thomas Niebel;Marianne Saam
我们重新审视了广泛讨论的ICT投资对经济增长的贡献，重点关注不同国家和不同时间ICT生产率和质量的差异。在增长会计方法中，我们研究回报率和资产价格下跌率衡量这些方面的方式。从欧盟KLEMS数据库的数据进行敏感性分析，1990-2007年，我们引入了一个恒定的回报率和ICT价格下降的恒定率。这两种方法都在一定程度上低估了投资对英国多要素生产率增长的作用。美国在1995-2000年。此外，我们发现，ICT对劳动生产率增长的贡献有一半以上来自资本质量和构成的变化，而不是数量的变化。
We revisit the widely discussed contribution of investment in ICT to economic growth, focusing on differences in productivity and quality of ICT across countries and time. In a growth accounting approach, we look at the way rates of return and rates of asset price decline measure these aspects. Conducting a sensitivity analysis with data from the EU KLEMS database for the years 1990–2007, we introduce a constant rate of return and a constant rate of ICT price decline. Both alternative measurements somewhat downplay the role investment played relative to growth in multifactor productivity in the U.K. and the U.S. during 1995–2000. Moreover, we show that more than half of the ICT contribution to labor productivity growth results from changes in capital quality and composition rather than from quantity.