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International economic spillovers and the liquidity trap

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  • Tarkka, Juha
  • Kortelainen, Mika

Abstract

We study the effect of the zero bound constraint of interest rates on international transmission of economic policy and supply shocks. After some preliminary analysis with a simple theoretical model, we apply a rich two-country simulation model to the problem.The model framework consists of EDGE, Bank of Finland's dynamic equilibrium model for the euro area, linked to a similar model calibrated to resemble the US economy.The models have new Keynesian properties because of price rigidities and forward-looking pricing, consumption and investment behaviour.We assume freely floating exchange rates.Monetary policies are modelled with Taylor type policy rules, taking into account the zero bound constraint for interest rates.We find that effects of policy and supply side shocks differ significantly from the 'normal' situation if one of the countries is in the 'liquidity trap', ie if the interest rate is constrained by the zero bound.Being in the liquidity trap amplifies the domestic effects of fiscal policy, but mitigates its spillover to abroad.Changing the long run inflation target, which does not have international spillovers in the normal case, does have effects abroad if the country where the target is changed is in a temporary liquidity trap.The effects of supply shocks are also very different in the liquidity trap case compared to the normal case.

Suggested Citation

  • Tarkka, Juha & Kortelainen, Mika, 2005. "International economic spillovers and the liquidity trap," Bank of Finland Research Discussion Papers 18/2005, Bank of Finland.
    • Handle: RePEc:zbw:bofrdp:rdp2005_018
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    More about this item

    Keywords

    zero bound; liquidity trap; international spillovers; edge;
    All these keywords.

    JEL classification:

    • F42 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - International Policy Coordination and Transmission
    • F47 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Forecasting and Simulation: Models and Applications

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