Engines of Growth: Domestic and Foreign Sources of Innovation

Jonathan Eaton and Samuel Kortum

No 5207, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: We examine productivity growth since World War II in the five leading research economies: West Germany, France, the United Kingdom, Japan, and the United States. Available data on the capital-output ratio suggest that these countries grew as they did because of their ability to adopt more productive technologies, not because of capital deepening per se. We present a multicountry model of technological innovation and diffusion which has the implication that, for a wide range of parameter values, countries converge to a common growth rate, with relative productivities depending on the speed with which countries adopt technologies developed at home and abroad. Using parameter values that fit a cross section of data on productivity, research, and patenting, we simulate the growth of the five countries, given initial productivity levels in 1950 and research efforts in the subsequent four decades. Based on plausible assumptions about 'technology gaps' that existed among these countries in 1950 we can explain their growth experiences quite successfully. Specifically, the simulations capture the magnitude of the slowdown in German, French, and Japanese productivity growth and the relative constancy of U.K. and U.S. growth.

Date: 1995-08
Note: EFG ITI IFM PR
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Published as Japan and the World Economy, Vol. 9, no. 2 (1997): 235-259.

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Related works:
Journal Article: Engines of growth: Domestic and foreign sources of innovation (1997)
Working Paper: Engines of growth: domestic and foreign sources of innovation (1995)
Working Paper: Engines of Growth: Domestic and Foreign Sources of Innovation (1995)
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