Accounting for Trends in Productivity and R&D: A Schumpeterian Critique of Semi-Endogenous Growth Theory

Joonkyung Ha and Peter Howitt

Journal of Money, Credit and Banking, 2007, vol. 39, issue 4, 733-774

Abstract: This paper argues that long-run trends in R&D and TFP are more supportive of fully endogenous "Schumpeterian" growth theory than they are of semi-endogenous growth theory. The distinctive prediction of semi-endogenous theory that sustained TFP growth requires sustained growth of R&D input is not supported by co-integration tests and forecasting exercises, as TFP growth has been stationary even though the growth rate of R&D input has fallen three-fold since the early 1950s. In contrast, the prediction of Schumpeterian theory that sustained TFP growth requires a sustained fraction of GDP to be spent on R&D is not contradicted by similar tests. Copyright 2007 The Ohio State University.

Date: 2007
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Persistent link: https://EconPapers.repec.org/RePEc:mcb:jmoncb:v:39:y:2007:i:4:p:733-774

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