Monetary-Fiscal Interaction and the Liquidity of Government Debt

Fuente: arXiv
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Autores principales: Cantore, Cristiano, Leonardi, Edoardo
Formato: Preprint
Publicado: 2025
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author Cantore, Cristiano
Leonardi, Edoardo
author_facet Cantore, Cristiano
Leonardi, Edoardo
contents How does the monetary and fiscal policy mix alter households' saving incentives? To answer these questions, we build a heterogenous agents New Keynesian model where three different types of agents can save in assets with different liquidity profiles to insure against idiosyncratic risk. Policy mixes affect saving incentives differently according to their effect on the liquidity premium -- the return difference between less liquid assets and public debt. We derive an intuitive analytical expression linking the liquidity premium with consumption differentials amongst different types of agents. This underscores the presence of a transmission mechanism through which the interaction of monetary and fiscal policy shapes economic stability via its effect on the portfolio choice of private agents. We call it the 'self-insurance demand channel', which moves the liquidity premium in the opposite direction to the standard 'policy-driven supply channel'. Our analysis thus reveals the presence of two competing forces driving the liquidity premium. We show that the relative strength of the two is tightly linked to the policy mix in place and the type of business cycle shock hitting the economy. This implies that to stabilize the economy, monetary policy should consider the impact of the 'self-insurance' on the liquidity premium.
format Preprint
id arxiv_https___arxiv_org_abs_2501_17458
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Monetary-Fiscal Interaction and the Liquidity of Government Debt
Cantore, Cristiano
Leonardi, Edoardo
General Economics
Economics
How does the monetary and fiscal policy mix alter households' saving incentives? To answer these questions, we build a heterogenous agents New Keynesian model where three different types of agents can save in assets with different liquidity profiles to insure against idiosyncratic risk. Policy mixes affect saving incentives differently according to their effect on the liquidity premium -- the return difference between less liquid assets and public debt. We derive an intuitive analytical expression linking the liquidity premium with consumption differentials amongst different types of agents. This underscores the presence of a transmission mechanism through which the interaction of monetary and fiscal policy shapes economic stability via its effect on the portfolio choice of private agents. We call it the 'self-insurance demand channel', which moves the liquidity premium in the opposite direction to the standard 'policy-driven supply channel'. Our analysis thus reveals the presence of two competing forces driving the liquidity premium. We show that the relative strength of the two is tightly linked to the policy mix in place and the type of business cycle shock hitting the economy. This implies that to stabilize the economy, monetary policy should consider the impact of the 'self-insurance' on the liquidity premium.
title Monetary-Fiscal Interaction and the Liquidity of Government Debt
topic General Economics
Economics
url https://arxiv.org/abs/2501.17458