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Innovation, Inequality and a Golden Rule for Growth in an Economy with Cobb-Douglas Function and an R&D Sector

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  • Paul J.J. Welfens

    (Europäisches Institut für Internationale Wirtschaftsbeziehungen (EIIW))

Abstract

The innovative approach presented introduces a modified neoclassical growth model which includes a new bias of technological progress in a quasi-endogenous growth model in which part of labor is used in the research & development sector. The combination of a macroeconomic production function and a new progress function, plus the assumption that the output elasticity of capital is positively influenced by the size of the R&D sector, sheds new light on innovation and growth as well as income inequality: Thus there is a new approach for explaining Piketty's historical findings of a medium term rise of the capital income share in industrialized countries - both in the earlier and later part of the 19th century and in 1990-2010. In the approach presented herein, the golden rule issues are also highlighted and it is shown that choosing the right size of the R&D sector will bring about maximum sustainable per capita consumption. While the basic new model is presented for the case of a closed economy, one could easily accommodate both trade and foreign direct investment and thereby get a better understanding of complex international investment, trade and FDI dynamics - including with respect to the envisaged Transatlantic Trade and Investment Partnership.

Suggested Citation

  • Paul J.J. Welfens, 2015. "Innovation, Inequality and a Golden Rule for Growth in an Economy with Cobb-Douglas Function and an R&D Sector," EIIW Discussion paper disbei206, Universitätsbibliothek Wuppertal, University Library.
    • Handle: RePEc:bwu:eiiwdp:disbei206
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    8. Welfens, Paul J. J. & Irawan, Tony, 2014. "European Innovation Dynamics and US Economic Impact: Theory and Empirical Analysis," IZA Discussion Papers 8507, Institute of Labor Economics (IZA).
    9. Paul Welfens & Tony Irawan, 2014. "Transatlantic trade and investment partnership: sectoral and macroeconomic perspectives for Germany, the EU and the US," International Economics and Economic Policy, Springer, vol. 11(3), pages 293-328, September.
    10. Paul Welfens, 2014. "Issues of modern macroeconomics: new post-crisis perspectives on the world economy," International Economics and Economic Policy, Springer, vol. 11(4), pages 481-527, December.
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    12. Laurens, Patricia & Le Bas, Christian & Schoen, Antoine & Villard, Lionel & Larédo, Philippe, 2015. "The rate and motives of the internationalisation of large firm R&D (1994–2005): Towards a turning point?," Research Policy, Elsevier, vol. 44(3), pages 765-776.
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    Cited by:

    1. Welfens, Paul J. J., 2016. "Integrated Macroeconomic Production Function for Open Economies: A New Schumpeterian Solow Model for Globalization," IZA Discussion Papers 9724, Institute of Labor Economics (IZA).
    2. Naudé, Wim & Nagler, Paula, 2017. "Technological Innovation and Inclusive Growth in Germany," IZA Discussion Papers 11194, Institute of Labor Economics (IZA).
    3. Veniamin Mokhov & Sergei Aliukov & Anatoliy Alabugin & Konstantin Osintsev, 2023. "A Review of Mathematical Models of Macroeconomics, Microeconomics, and Government Regulation of the Economy," Mathematics, MDPI, vol. 11(14), pages 1-37, July.
    4. Wim Naudé & Paula Nagler, 2018. "Technological Innovation, Entrepreneurship and Productivity in Germany, 1871-2015," SPRU Working Paper Series 2018-02, SPRU - Science Policy Research Unit, University of Sussex Business School.
    5. Paul J.J. Welfens, 2016. "Schumpeterian Macroeconomic Production Function for Open Economies: A New Endogenous Knowledge and Output Analysis," EIIW Discussion paper disbei211, Universitätsbibliothek Wuppertal, University Library.
    6. Paul J.J. Welfens, 2015. "Transatlantisches Freihandelsabkommen EU-USA: Befunde zu den TTIP-Vorteilen und Anmerkungen zur TTIP-Debatte," EIIW Discussion paper disbei209, Universitätsbibliothek Wuppertal, University Library.
    7. Naudé, Wim & Nagler, Paula, 2021. "The Rise and Fall of German Innovation," IZA Discussion Papers 14154, Institute of Labor Economics (IZA).

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    More about this item

    Keywords

    Innovation; Growth; Inequality; Golden Rule; Piketty;
    All these keywords.

    JEL classification:

    • O11 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Macroeconomic Analyses of Economic Development
    • O32 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Management of Technological Innovation and R&D
    • O40 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - General
    • D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement

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