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Financial Frictions, the Phillips Curve and Monetary Policy

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  • Lieberknecht, Philipp

Abstract

How does the presence of financial frictions alter the Phillips curve and the conduct of optimal monetary policy? I investigate this question in a tractable small-scale New Keynesian DSGE model with a financial accelerator. The accelerator amplifies shocks, decreases the slope of the Phillips curve and renders forward-looking behavior more relevant for current macroeconomic dynamics. I show analytically that these three factors imply an inflationary bias of discretionary monetary policy relative to the standard model and a stabilization bias relative to commitment policy. A conservative central banker who places a larger weight on inflation stabilization than society is able to reduce both biases and closely mimics the optimal policy under commitment. The required degree of inflation conservatism increases in the degree to which financial frictions are present.

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  • Lieberknecht, Philipp, 2018. "Financial Frictions, the Phillips Curve and Monetary Policy," MPRA Paper 89429, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:89429
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    Cited by:

    1. Boehl, Gregor, 2022. "Monetary policy and speculative asset markets," European Economic Review, Elsevier, vol. 148(C).
    2. Böhl, Gregor & Lieberknecht, Philipp, 2021. "The hockey stick Phillips curve and the zero lower bound," IMFS Working Paper Series 153, Goethe University Frankfurt, Institute for Monetary and Financial Stability (IMFS).
    3. Böhl, Gregor & Lieberknecht, Philipp, 2021. "The hockey stick Phillips curve and the effective lower bound," Discussion Papers 55/2021, Deutsche Bundesbank.
    4. Aquino, Juan, 2019. "The Small Open Economy New-Keynesian Phillips Curve: Specification, Structural Breaks and Robustness," Working Papers 2019-019, Banco Central de Reserva del Perú.

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    More about this item

    Keywords

    Financial frictions; financial accelerator; Phillips curve; missing disinflation; optimal monetary policy; discretion; commitment; inflation conservatism; inflation targeting;
    All these keywords.

    JEL classification:

    • E4 - Macroeconomics and Monetary Economics - - Money and Interest Rates
    • E42 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Monetary Sytsems; Standards; Regimes; Government and the Monetary System
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • E5 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies

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