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Time elements and oscillatory fluctuations in the Keynesian macroeconomic system

Author

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  • Murakami Hiroki

    (Japan Society for the Promotion of Science; Graduate School of Economics, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan)

Abstract

In this paper, we discuss the relationship between three time lags (the consumption lag, the investment decision lag and the gestation lag) and oscillatory economic fluctuations in the Keynesian IS-LM system. We first confirm that in the absence of time lags, the monotone convergence to the unique equilibrium is observed. Next, we demonstrate that, in the Keynesian IS-LM system, in the existence of the investment decision lag and the gestation lag, oscillatory fluctuations are generated around the equilibrium if the gestation lag is relatively long, while in the existence of the consumption lag and the gestation lag, oscillatory behaviors may not occur. We then conclude that the existence of time lags may be one of the major causes of oscillatory fluctuations.

Suggested Citation

  • Murakami Hiroki, 2017. "Time elements and oscillatory fluctuations in the Keynesian macroeconomic system," Studies in Nonlinear Dynamics & Econometrics, De Gruyter, vol. 21(2), pages 1-22, April.
    • Handle: RePEc:bpj:sndecm:v:21:y:2017:i:2:p:22:n:1
    DOI: 10.1515/snde-2015-0052
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    References listed on IDEAS

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    1. Murakami, Hiroki, 2015. "Wage flexibility and economic stability in a non-Walrasian model of economic growth," Structural Change and Economic Dynamics, Elsevier, vol. 32(C), pages 25-41.
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    9. Yoshida, Hiroyuki & Asada, Toichiro, 2007. "Dynamic analysis of policy lag in a Keynes-Goodwin model: Stability, instability, cycles and chaos," Journal of Economic Behavior & Organization, Elsevier, vol. 62(3), pages 441-469, March.
    10. Murakami, Hiroki, 2014. "Keynesian systems with rigidity and flexibility of prices and inflation–deflation expectations," Structural Change and Economic Dynamics, Elsevier, vol. 30(C), pages 68-85.
    11. Blinder, Alan S. & Solow, Robert M., 1973. "Does fiscal policy matter?," Journal of Public Economics, Elsevier, vol. 2(4), pages 319-337.
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    Cited by:

    1. Hiroki Murakami, 2019. "A note on the “unique” business cycle in the Keynesian theory," Metroeconomica, Wiley Blackwell, vol. 70(3), pages 384-404, July.
    2. Hiroki Murakami, 2022. "Keynesian and classical theories: static and dynamic perspectives," Evolutionary and Institutional Economics Review, Springer, vol. 19(1), pages 343-367, April.
    3. Murakami, Hiroki & Asada, Toichiro, 2018. "Inflation-deflation expectations and economic stability in a Kaleckian system," Journal of Economic Dynamics and Control, Elsevier, vol. 92(C), pages 183-201.
    4. Murakami, Hiroki, 2020. "Monetary policy in the unique growth cycle of post Keynesian systems," Structural Change and Economic Dynamics, Elsevier, vol. 52(C), pages 39-49.

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    More about this item

    Keywords

    delay differential equations; Keynesian economics; oscillations; time lags;
    All these keywords.

    JEL classification:

    • E12 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Keynes; Keynesian; Post-Keynesian; Modern Monetary Theory
    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • E22 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Investment; Capital; Intangible Capital; Capacity
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • E41 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Demand for Money
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy

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