Convergence and polarization in global income levels: a review of recent results on the role of international technology diffusion |
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Authors: | Guan GongWolfgang Keller |
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Institution: | a University of Texas, Austin, TX, USA b Economics Department, Brown University, Box B, 64 Waterman Street, Providence, RI 02912, USA c National Bureau of Economic Research (NBER) Summer Institute, Cambridge, MA, UK d Center for Economic and Policy Research (CEPR), London, UK |
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Abstract: | We review the recent literature on technological change and diffusion to shed new light on the evolution of the world’s cross-country income distribution. Technology is viewed as non-rival knowledge in the sense that firms in more than one country can simultaneously use it. R&D investments generate often also a return outside the innovating firm itself; these knowledge externalities are called technology spillovers. We emphasize that technology is to some extent tacit, and technology diffusion often involves the face-to-face interaction of people. Our paper reviews the evidence on whether international trade, foreign direct investment, and other cross-border activities are important for technology diffusion. |
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Keywords: | Technology spillovers Tacit knowledge Foreign direct investment Trade Communications |
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