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The Cost Channel of Monetary Policy in a Post Keynesian Macrodynamic Model of Inflation and Output Targeting


  • Gilberto Tadeu Lima

    (Department of Economics, University of Sao Paulo)

  • Mark Setterfield

    (Department of Economics, Trinity College)


This paper contributes to the debate about whether or not inflation targeting is compatible with Post Keynesian economics. It does so by developing a model that takes into account the potentially inflationary consequences of interest rate manipulations. Evaluations of the macroeconomic implications of this so-called cost channel of monetary policy are common in the mainstream literature. But this literature uses supply-determined macro models and provides standard optimizing microfoundations for the various ways in which the interest rate can affect mark-ups, prices and ultimately the form of the Phillips curve. Our purpose is to study the implications of different Phillips curves, each embodying the cost channel and derived from Post Keynesian, cost-based-pricing microfoundations, in a monetary-production economy. We focus on the impact of these Phillips curves on macroeconomic stability and the consequent efficacy of inflation and output targeting. Ultimately, our results suggest that the presence of the cost channel is of less significance than the general orientation of the policy regime, and corroborate earlier finding that, in a monetary-production economy, more orthodox policy regimes are inimical to macro stabilization.

Suggested Citation

  • Gilberto Tadeu Lima & Mark Setterfield, 2011. "The Cost Channel of Monetary Policy in a Post Keynesian Macrodynamic Model of Inflation and Output Targeting," Working Papers 1102, Trinity College, Department of Economics.
  • Handle: RePEc:tri:wpaper:1102

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    Cited by:

    1. Emiliano Brancaccio & Giuseppe Fontana, 2013. "'Solvency rule' versus 'Taylor rule': an alternative interpretation of the relation between monetary policy and the economic crisis," Cambridge Journal of Economics, Oxford University Press, vol. 37(1), pages 17-33.
    2. Mark Setterfield, 2014. "Using Interest Rates as the Instrument of Monetary Policy: Beware Real effects, Positive Feedbacks, and Discontinuities," Ensayos Económicos, Central Bank of Argentina, Economic Research Department, vol. 1(70), pages 7-22, June.
    3. Romar Correa, 2012. "Cost Inflation and Price Inflation," South Asian Journal of Macroeconomics and Public Finance, , vol. 1(1), pages 15-24, June.

    More about this item


    Cost channel of monetary policy; incomes policy; inflation targeting; macroeconomic stability;
    All these keywords.

    JEL classification:

    • E12 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Keynes; Keynesian; Post-Keynesian; Modern Monetary Theory
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E60 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - General

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