Bank credit, inflation, and default risks over an infinite horizon

The financial intermediation wedge of the banking sector used to co-move positively with the federal funds rate, but the post-GFC era saw a disconnect between them. We develop a flexible price dynamic general equilibrium with banks’ liquidity creation to offer an explanation. In a corridor system, t...

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Main Authors: Goodhart, CAE, Tsomocos, D, Wang, X
Format: Journal article
Language:English
Published: Elsevier 2023
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author Goodhart, CAE
Tsomocos, D
Wang, X
author_facet Goodhart, CAE
Tsomocos, D
Wang, X
author_sort Goodhart, CAE
collection OXFORD
description The financial intermediation wedge of the banking sector used to co-move positively with the federal funds rate, but the post-GFC era saw a disconnect between them. We develop a flexible price dynamic general equilibrium with banks’ liquidity creation to offer an explanation. In a corridor system, the financial wedge and policy rate are shown to co-move, and the pass-through of monetary policy onto both inflation and output obtains. However, the post-GFC floor system obviates the need for the financial wedge to cover the cost of obtaining reserves, so the wedge and the policy rate indeed disconnect in equilibrium; furthermore, we show that the disconnect obstructs monetary expansions from generating inflation. In this environment, tightening bank capital requirement leads to disinflationary pressure. Money-financed fiscal expansions that subsidise non-bank sectors’ borrowing costs improve output and reduce default risks but increase inflation. The model uses banks’ liquidity creation via credit extension to provide a rationale for both the pre-pandemic disinflation and the post-pandemic inflation. The results hold both on the dynamic paths and in the steady state, and the role of money enlarges the Taylor rule determinacy region.
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spelling oxford-uuid:4de43d33-615d-47d0-aeae-3db352a897172023-10-13T15:46:42ZBank credit, inflation, and default risks over an infinite horizonJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:4de43d33-615d-47d0-aeae-3db352a89717EnglishSymplectic ElementsElsevier2023Goodhart, CAETsomocos, DWang, XThe financial intermediation wedge of the banking sector used to co-move positively with the federal funds rate, but the post-GFC era saw a disconnect between them. We develop a flexible price dynamic general equilibrium with banks’ liquidity creation to offer an explanation. In a corridor system, the financial wedge and policy rate are shown to co-move, and the pass-through of monetary policy onto both inflation and output obtains. However, the post-GFC floor system obviates the need for the financial wedge to cover the cost of obtaining reserves, so the wedge and the policy rate indeed disconnect in equilibrium; furthermore, we show that the disconnect obstructs monetary expansions from generating inflation. In this environment, tightening bank capital requirement leads to disinflationary pressure. Money-financed fiscal expansions that subsidise non-bank sectors’ borrowing costs improve output and reduce default risks but increase inflation. The model uses banks’ liquidity creation via credit extension to provide a rationale for both the pre-pandemic disinflation and the post-pandemic inflation. The results hold both on the dynamic paths and in the steady state, and the role of money enlarges the Taylor rule determinacy region.
spellingShingle Goodhart, CAE
Tsomocos, D
Wang, X
Bank credit, inflation, and default risks over an infinite horizon
title Bank credit, inflation, and default risks over an infinite horizon
title_full Bank credit, inflation, and default risks over an infinite horizon
title_fullStr Bank credit, inflation, and default risks over an infinite horizon
title_full_unstemmed Bank credit, inflation, and default risks over an infinite horizon
title_short Bank credit, inflation, and default risks over an infinite horizon
title_sort bank credit inflation and default risks over an infinite horizon
work_keys_str_mv AT goodhartcae bankcreditinflationanddefaultrisksoveraninfinitehorizon
AT tsomocosd bankcreditinflationanddefaultrisksoveraninfinitehorizon
AT wangx bankcreditinflationanddefaultrisksoveraninfinitehorizon