Long-Term Barriers to the International Diffusion of Innovations

41 Pages Posted: 8 Aug 2011 Last revised: 29 Sep 2012

See all articles by Enrico Spolaore

Enrico Spolaore

Tufts University - Department of Economics

Romain T. Wacziarg

UCLA Anderson School of Management; National Bureau of Economic Research (NBER)

Date Written: August 2011

Abstract

We document an empirical relationship between the cross-country adoption of technologies and the degree of long-term historical relatedness between human populations. Historical relatedness is measured using genetic distance, a measure of the time since two populations' last common ancestors. We find that the measure of human relatedness that is relevant to explain international technology diffusion is genetic distance relative to the world technological frontier ("relative frontier distance"). This evidence is consistent with long-term historical relatedness acting as a barrier to technology adoption: societies that are more distant from the technological frontier tend to face higher imitation costs. The results can help explain current differences in total factor productivity and income per capita across countries.

Suggested Citation

Spolaore, Enrico and Wacziarg, Romain T., Long-Term Barriers to the International Diffusion of Innovations (August 2011). NBER Working Paper No. w17271. Available at SSRN: https://ssrn.com/abstract=1906205

Enrico Spolaore (Contact Author)

Tufts University - Department of Economics ( email )

Medford, MA 02155
United States

Romain T. Wacziarg

UCLA Anderson School of Management ( email )

110 Westwood Plaza
Los Angeles, CA 90095-1481
United States

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

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