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Liquidity Traps in a Monetary Union

Author

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  • Kollmann, Robert
Abstract
The closed economy macro literature has shown that a liquidity trap can result from the self-fulfilling expectation that future inflation and output will be low (Benhabib et al. (2001)). This paper investigates expectations-driven liquidity traps in a two-country New Keynesian model of a monetary union. In the model here, country-specific productivity shocks induce synchronized responses of domestic and foreign output, while country-specific aggregate demand shocks trigger asymmetric domestic and foreign responses. A rise in government purchases in an individual country lowers GDP in the rest of the union. The result here cast doubt on the view that, in the current era of ultra-low interest rates, a rise in fiscal spending by Euro Area (EA) core countries would significantly boost GDP in the EA periphery (e.g. Blanchard et al. (2016)).

Suggested Citation

  • Kollmann, Robert, 2020. "Liquidity Traps in a Monetary Union," CEPR Discussion Papers 15148, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:15148
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    2. Robert Kollmann, 2021. "Effects of Covid-19 on Euro area GDP and inflation: demand vs. supply disturbances," International Economics and Economic Policy, Springer, vol. 18(3), pages 475-492, July.
    3. Kollmann, Robert, 2022. "A tractable overlapping generations structure for quantitative DSGE models," Economics Letters, Elsevier, vol. 221(C).
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    More about this item

    Keywords

    Zero lower bound; Liquidity trap; Monetary union; Terms of trade; International fiscal spillovers; Euro area;
    All these keywords.

    JEL classification:

    • E3 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles
    • E4 - Macroeconomics and Monetary Economics - - Money and Interest Rates
    • F2 - International Economics - - International Factor Movements and International Business
    • F3 - International Economics - - International Finance
    • F4 - International Economics - - Macroeconomic Aspects of International Trade and Finance

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