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Review of Economic Studies Vol. 81 No. 4 2014

Fiscal Policy in an Expectations-Driven Liquidity Trap

K. R. S. M. Mertens1,2; Morten O. Ravn3,4

1 Center for Economic and Policy Research · 2 Cornell University · 3 Centre for Economic Policy Research · 4 University College London

Abstract

We study the effects of fiscal policy interventions in a liquidity trap in a model with nominal rigidities and an interest rate rule. In a liquidity trap caused by a self-fulfilling state of low confidence, higher government spending has deflationary effects that reduce the spending multiplier when the zero lower bound is binding. Instead, cuts in marginal labour tax rates are inflationary and become more expansionary when the zero lower bound is binding. These findings contradict a popular view, based on a liquidity trap caused by a fundamental shock such as a taste shock, that higher government spending is inflationary and can therefore be associated with large multipliers at the zero lower bound, while lower marginal tax rates are deflationary and therefore counterproductive.

DOI
10.1093/restud/rdu016
Volume
81
Issue
4
Pages
1637-1667
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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