ICT Externalities: Evidence from cross country data
Meijers, Huub (2007). ICT Externalities: Evidence from cross country data. UNU-MERIT.
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Author Meijers, Huub Title ICT Externalities: Evidence from cross country data Publication Date 2007 Publisher UNU-MERIT Abstract This paper reports the findings of an empirical study on the external effects of Information and Communication Technologies (ICT) on economic growth and productivity at an aggregate level. It focuses on possible network effects and spillovers emerging as externalities from investments in ICT. The existence of externalities is well described in theoretical work however empirical evidence is scarce. By using time series at the macro level for a panel of 15 countries I find positive externalities for investments in IT software and in telecommunication equipment, but not for IT hardware. The analysis, which accounts for cyclical effects and also takes external effects from non-ICT factors into account, points at considerable lags between the time of investing in these technologies and the time at which the externalities arise. Taking these externality effects into account, the paper shows that the impact of ICT on productivity is almost twice as high as compared to a model that does not include such effects. Keyword Productivity
Network effects
Spillovers
Information and communication technologies
Total factor productivityJEL D24
O11
O47Copyright Holder UNU-MERIT Copyright Year 2007 ISSN 1871-9872 -
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