The Spatial Diffusion of Technology
Abstract
We study empirically technology diffusion across countries and over time. We find significant evidence that technology diffuses slower to locations that are farther away from adoption leaders. This effect is stronger across rich countries and also when measuring distance along the south-north dimension. A simple theory of human interactions can account for these empirical findings. The theory suggests that the effect of distance should vanish over time, a hypothesis that we confirm in the data, and that distinguishes technology from other flows like goods or investments. We then structurally estimate the model. The parameter governing the frequency of interactions is larger for newer and network-based technologies and for the median technology the frequency of interactions decays by 73% every 1000 Kms. Overall, we document the significant role that geography plays in determining technology diffusion across countries.Download Info
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Bibliographic Info
Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 9208.Length:
Date of creation: Nov 2012
Date of revision:
Handle: RePEc:cpr:ceprdp:9208
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Related research
Keywords: Geography; Human Interactions; Technology Diffusion;Other versions of this item:
- Diego A. Comin & Mikhail Dmitriev & Esteban Rossi-Hansberg, 2012. "The Spatial Diffusion of Technology," NBER Working Papers 18534, National Bureau of Economic Research, Inc.
- O3 - Economic Development, Technological Change, and Growth - - Technological Change; Research and Development; Intellectual Property Rights
- R0 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General
This paper has been announced in the following NEP Reports:
- NEP-ALL-2012-12-06 (All new papers)
- NEP-GEO-2012-12-06 (Economic Geography)
- NEP-URE-2012-12-06 (Urban & Real Estate Economics)
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