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A Model of Monetary Transmission Mechanism

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  • Maruyama, Yuuki

Abstract

The point of this model is that total investment in the economy is not determined by the equilibrium of the interest rate alone, but by the equilibrium of both the interest rate and the market price of risk (risk premium). In this model, the lower the discount rate or risk aversion of people, the higher the total investment. This model shows that when the interest rate is not at the zero lower bound, the total investment is only slightly affected by people's risk aversion, but at the zero lower bound, the total investment is inversely proportional to people's risk aversion. In addition, this model is used to analyze monetary policy. It is shown that the interest rate channel and the credit channel can be analyzed with the same formula and the effect of the interest rate channel is small. This explains why a central bank can greatly increase the total investment with small changes in the interest rate. Additionally, this paper analyzes fiscal policy, helicopter money, and government bonds.

Suggested Citation

  • Maruyama, Yuuki, 2020. "A Model of Monetary Transmission Mechanism," SocArXiv hm9jn, Center for Open Science.
    • Handle: RePEc:osf:socarx:hm9jn
    DOI: 10.31219/osf.io/hm9jn
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    References listed on IDEAS

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    1. Sebastian Di Tella, 2018. "A Neoclassical Theory of Liquidity Traps," NBER Working Papers 24205, National Bureau of Economic Research, Inc.
    2. Bacchetta, Philippe & Benhima, Kenza & Kalantzis, Yannick, 2020. "Money and capital in a persistent liquidity trap," Journal of Monetary Economics, Elsevier, vol. 116(C), pages 70-87.
    3. Merton, Robert C., 1971. "Optimum consumption and portfolio rules in a continuous-time model," Journal of Economic Theory, Elsevier, vol. 3(4), pages 373-413, December.
    4. Gauti B. Eggertsson & Paul Krugman, 2012. "Debt, Deleveraging, and the Liquidity Trap: A Fisher-Minsky-Koo Approach," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 127(3), pages 1469-1513.
    5. Sebastian Di Tella, 2018. "A Neoclassical Theory of Liquidity Traps," 2018 Meeting Papers 96, Society for Economic Dynamics.
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    Cited by:

    1. Deimantė Teresienė & Greta Keliuotytė-Staniulėnienė & Rasa Kanapickienė, 2021. "Sustainable Economic Growth Support through Credit Transmission Channel and Financial Stability: In the Context of the COVID-19 Pandemic," Sustainability, MDPI, vol. 13(5), pages 1-34, March.

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