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Fiscal Policy Interventions at the Zero Lower Bound

Boubaker, S.; Nguyen, D.K.; Paltalidis, N.

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S. Boubaker

D.K. Nguyen


We build on a New Keynesian Dynamic Stochastic General Equilibrium (DSGE) model to explore the macroeconomic consequences of fiscal expansionary shocks during the economic crisis of 2008 in the eurozone. In this setting, we find that the big four eurozone economies (France, Germany, Italy, and Spain) can effectively escape from their liquidity trap through fiscal policy interventions caused by government purchases. We estimate the government spending multiplier to be above 1.8 when this policy is associated with a long-term commitment to keeping the nominal interest rate at the zero lower bound, as suggested by Krugman (1998). Notably, the short-term deficit effect on the budget balance can be offset five years after the implementation of a large spending program. We also show that alternative policies with tax cuts that expand the supply do not appear to have the same power in the short run. Moreover, we provide novel empirical evidence that a large government debt renders a government spending policy ineffective.


Boubaker, S., Nguyen, D., & Paltalidis, N. (2018). Fiscal Policy Interventions at the Zero Lower Bound. Journal of Economic Dynamics and Control, 93, 297-314.

Journal Article Type Article
Acceptance Date Jan 26, 2018
Online Publication Date Feb 8, 2018
Publication Date Aug 1, 2018
Deposit Date Jan 23, 2018
Publicly Available Date Feb 8, 2020
Journal Journal of Economic Dynamics and Control
Print ISSN 0165-1889
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 93
Pages 297-314
Public URL


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