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Government Debt and the Fiscal Channels of Monetary Policy

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  • Lavender, S.

Abstract

This paper shows how the design of fiscal policy and the characteristics of government debt can drive significant differences in monetary transmission within and across countries with different fiscal contexts, and across models with different fiscal specifications. Using a tractable HANK model, I derive analytical expressions for the effects of fiscal policy on monetary transmission as the sum of three channels: a debt service channel, a debt composition channel, and a fiscal cyclicality channel. The magnitudes and directions of these channels are strongly context dependent, being determined by the interactions between the size and composition of government debt, the choice of fiscal rule, the progressivity of the marginal fiscal instrument, and the distribution of government debt ownership. For a given fiscal block used in a theoretical model, or for a given fiscal context observed in the data, the framework explains when the fiscal channels are large or small, and why they amplify or dampen monetary policy.

Suggested Citation

  • Lavender, S., 2026. "Government Debt and the Fiscal Channels of Monetary Policy," Cambridge Working Papers in Economics 2683, Faculty of Economics, University of Cambridge.
    • Handle: RePEc:cam:camdae:2683
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    JEL classification:

    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E62 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Fiscal Policy; Modern Monetary Theory
    • E63 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Comparative or Joint Analysis of Fiscal and Monetary Policy; Stabilization; Treasury Policy

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