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ICT, productivity and economic growth: the empirical contribution of Jorgenson, Ho and Stiroh

Joan Torrent i Sellens (

Director of Economics and Business Studies at the UOC
Coordinator of the research group of the Observatory of the New Economy (ONE)


In the process of transition from an industrial economy to a global, knowledge-based economy, investment and the use of information and communication technologies (ICTs) have become an explanatory factor determining the advances in productivity and, consequently, of economic growth. This article starts from the critical analysis of the book Information Technology and the American Growth Resurgence, by Dale W. Jorgenson, Mun S. Ho and Kevin J. Stiroh, an analytical and empirical contribution, from both the aggregate and sectorial point of view, to the contribution of ICTs to the economic and productivity growth of the USA and the G7 group of countries (USA, Canada, United Kingdom, France, Germany, Italy and Japan). The results of the research are conclusive in relation to the fact that, since the second half of the 1990s, ICTs have played a determining and growing role in explaining the advances of work productivity, especially through improvements in the efficiency of these economies.


knowledge economy, information and communication technologies (ICT), work productivity, capital dependence, total factor productivity, TFP, economic growth

Submission date: January 2006
Published in: March 2006

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