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A two†sector Keynesian model of business cycles

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  • Hiroki Murakami

Abstract

In this paper, we examine the effect of sectoral interactions on business cycles in a simple Keynesian model. As a first step for introducing viewpoints of multiple sectors in the context of business cycles, we consider a dual economy in which there are only two kinds of goods: the consumption good and the investment good. By examining a two†sector Keynesian model, we intend to take a look at some phenomena induced by interactions between the consumption good sector and the investment good sector, which cannot be observed in one†sector models. We then find that the stability of equilibrium and the possibility of emergence of a periodic orbit depend on whether the Keynesian stability condition holds or not and that along periodic orbits (business cycles), the consumption good sector lags behind the investment good sector and that the volatility (measured by the ratio of the amplitude of cycles to the equilibrium value) of the investment sector is larger than that of the consumption good sector. Also, we supplement the analysis by performing numerical simulations.

Suggested Citation

  • Hiroki Murakami, 2018. "A two†sector Keynesian model of business cycles," Metroeconomica, Wiley Blackwell, vol. 69(2), pages 444-472, May.
    • Handle: RePEc:bla:metroe:v:69:y:2018:i:2:p:444-472
    DOI: 10.1111/meca.12195
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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. Lucrezia Fanti & Luca Zamparelli, 2021. "The paradox of thrift in a two‐sector Kaleckian growth model," Metroeconomica, Wiley Blackwell, vol. 72(3), pages 526-538, July.
    3. Nishi, Hiroshi, 2022. "Income distribution, technical change, and economic growth: A two-sector Kalecki–Kaldor approach," Structural Change and Economic Dynamics, Elsevier, vol. 60(C), pages 418-432.
    4. Murakami, Hiroki, 2022. "The unique limit cycle in post Keynesian theory," Chaos, Solitons & Fractals, Elsevier, vol. 154(C).
    5. Ricardo Azevedo Araujo & Carlos Eduardo Drumond, 2021. "A two‐sector neo‐Kaleckian model of growth and distribution: Investment allocation and evolutionary dynamics," Metroeconomica, Wiley Blackwell, vol. 72(1), pages 213-236, February.
    6. Nishi, Hiroshi, 2018. "A Dynamic Analysis of Demand and Productivity Growth in a Two-sector Kaleckian Model," MPRA Paper 86778, University Library of Munich, Germany.
    7. Murakami, Hiroki & Zimka, Rudolf, 2020. "On dynamics in a two-sector Keynesian model of business cycles," Chaos, Solitons & Fractals, Elsevier, vol. 130(C).
    8. Cajas Guijarro, John, 2023. "A Classical Marxian Two-Sector Endogenous Cycle Model: Integrating Marx, Dutt, and Goodwin," MPRA Paper 118665, University Library of Munich, Germany.
    9. Lixiao Hao & Vasilios I. Manousiouthakis, 2021. "Sustainability over sets and the business cycle," SN Business & Economics, Springer, vol. 1(6), pages 1-26, June.
    10. Beqiraj, Elton & Fanti, Lucrezia & Zamparelli, Luca, 2019. "Sectoral composition of output and the wage share: The role of the service sector," Structural Change and Economic Dynamics, Elsevier, vol. 51(C), pages 1-10.
    11. Elton Beqiraj & Lucrezia Fanti & Luca Zamparelli, 2019. "Sectoral Composition of Output and the Wage Share: a Two-Sector Kaleckian Model," Working Papers 3/19, Sapienza University of Rome, DISS.
    12. Nishi, Hiroshi, 2020. "A two-sector Kaleckian model of growth and distribution with endogenous productivity dynamics," Economic Modelling, Elsevier, vol. 88(C), pages 223-243.
    13. Beqiraj, Elton & Fanti, Lucrezia & Zamparelli, Luca, 2018. "Structural Change and the Wage Share: a Two-Sector Kaleckian Model," MPRA Paper 89558, University Library of Munich, Germany.
    14. 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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