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Monetary Policy in a Schumpeterian Growth Model with Two R&D Sectors

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  • Huang, Chien-Yu
  • Wu, Youchang
  • Yang, Yibai
  • Zheng, Zhijie

Abstract

We explore the growth and welfare effects of monetary policy in a two-sector Schumpeterian economy with cash-in-advance (CIA) constrained R&D investment in both sectors. We show that a nominal interest rate increase generates two effects on equilibrium labor allocation: a manufacturing-R&D-reallocation effect and a cross-R&D-sector effect. The former reduces economic growth by shifting labor from R&D to production, whereas the latter can enhance it by shifting labor from the less productive R&D sector to the more productive one. Unless the high productivity R&D sector is severely more CIA-constrained than the low productivity one, aggregate R&D overinvestment is sufficient but not necessary for the Friedman rule of monetary policy to be suboptimal. Our benchmark parameterization suggests that a positive nominal interest rate is optimal despite that it exacerbates the aggregate R&D underinvestment problem.

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  • Huang, Chien-Yu & Wu, Youchang & Yang, Yibai & Zheng, Zhijie, 2021. "Monetary Policy in a Schumpeterian Growth Model with Two R&D Sectors," MPRA Paper 109780, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:109780
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    Cited by:

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    2. Daiki Maeda & Yuki Saito, 2020. "Effects of Monetary Policy in a Model with Cash-in-Advance Constraints on R&D and Capital Accumulation," ISER Discussion Paper 1076, Institute of Social and Economic Research, Osaka University.
    3. Hu, Ruiyang & Yang, Yibai & Zheng, Zhijie, 2021. "Inflation, endogenous quality increment, and economic growth," Mathematical Social Sciences, Elsevier, vol. 114(C), pages 72-86.

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    More about this item

    Keywords

    CIA constraint; Endogenous growth; Monetary policy; R&D; Creative destruction.;
    All these keywords.

    JEL classification:

    • E41 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Demand for Money
    • O30 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - General
    • O40 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - General

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