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The Expansionary Lower Bound: Contractionary Monetary Easing and the Trilemma

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  • Paolo Cavallino
  • Mr. Damiano Sandri

Abstract

We provide a theory of the limits to monetary policy independence in open economies arising from the interaction between capital flows and domestic collateral constraints. The key feature of our theory is the existence of an “Expansionary Lower Bound” (ELB), defined as an interest rate threshold below which monetary easing becomes contractionary. The ELB can be positive, thus acting as a more stringent constraint than the Zero Lower Bound. Furthermore, the ELB is affected by global monetary and financial conditions, leading to novel international spillovers and crucial departures from Mundell’s trilemma. We present two models under which the ELB may arise, the first featuring carry-trade capital flows and the second highlighting the role of currency mismatches.

Suggested Citation

  • Paolo Cavallino & Mr. Damiano Sandri, 2018. "The Expansionary Lower Bound: Contractionary Monetary Easing and the Trilemma," IMF Working Papers 2018/236, International Monetary Fund.
    • Handle: RePEc:imf:imfwpa:2018/236
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    2. Georgios Georgiadis & Feng Zhu, 2019. "Monetary policy spillovers, capital controls and exchange rate flexibility, and the financial channel of exchange rates," GRU Working Paper Series GRU_2019_009, City University of Hong Kong, Department of Economics and Finance, Global Research Unit.
    3. Sandri, Damiano, 2023. "FX intervention to stabilize or manipulate the exchange rate? Inference from profitability," Journal of International Money and Finance, Elsevier, vol. 131(C).
    4. Salih Fendoğlu & Eda Gülşen & José-Luis Peydró, 2019. "Global liquidity and impairment of local monetary policy," Economics Working Papers 1680, Department of Economics and Business, Universitat Pompeu Fabra.
    5. Fabiani, Andrea & López-Piñeros, Martha & Peydró, José-Luis & Soto, Paul E., 2022. "Capital Controls, Domestic Macroprudential Policy and the Bank Lending Channel of Monetary Policy," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 139(November ), pages 1-1.
    6. Kose,Ayhan & Ohnsorge,Franziska Lieselotte, 2020. "Emerging and Developing Economies : Ten Years After the Global Recession," Policy Research Working Paper Series 9148, The World Bank.
    7. Pierre-Richard Agénor & Timothy P. Jackson & Luiz Pereira da Silva, 2020. "Foreign Exchange Intervention and Financial Stability," Working Papers 202027, University of Liverpool, Department of Economics.
    8. Grahame Johnson & Sharon Kozicki & Romanos Priftis & Lena Suchanek & Jonathan Witmer & Jing Yang, 2020. "Implementation and Effectiveness of Extended Monetary Policy Tools: Lessons from the Literature," Discussion Papers 2020-16, Bank of Canada.
    9. Nadezhda Ivanova & Mikhail Andreev & Andrey Sinyakov & Ivan Shevchuk, 2019. "Review of Bank of Russia Conference on ‘Macroprudential Policy Effectiveness: Theory and Practice’," Russian Journal of Money and Finance, Bank of Russia, vol. 78(3), pages 89-121, September.
    10. Bats, Joost V. & Giuliodori, Massimo & Houben, Aerdt C.F.J., 2023. "Monetary policy effects in times of negative interest rates: What do bank stock prices tell us?," Journal of Financial Intermediation, Elsevier, vol. 53(C).
    11. Schroth, Josef, 2021. "Macroprudential policy with capital buffers," Journal of Monetary Economics, Elsevier, vol. 118(C), pages 296-311.
    12. Joseph Abadi & Markus Brunnermeier & Yann Koby, 2023. "The Reversal Interest Rate," American Economic Review, American Economic Association, vol. 113(8), pages 2084-2120, August.
    13. Jens Eisenschmidt & Frank Smets, 2019. "Negative Interest Rates: Lessons from the Euro Area," Central Banking, Analysis, and Economic Policies Book Series, in: Álvaro Aguirre & Markus Brunnermeier & Diego Saravia (ed.),Monetary Policy and Financial Stability: Transmission Mechanisms and Policy Implications, edition 1, volume 26, chapter 2, pages 013-042, Central Bank of Chile.
    14. Claudio Borio & Ilhyock Shim & Hyun Song Shin, 2023. "Macro-Financial Stability Frameworks: Experience and Challenges," World Scientific Book Chapters, in: Claudio Borio & Edward S Robinson & Hyun Song Shin (ed.), MACRO-FINANCIAL STABILITY POLICY IN A GLOBALISED WORLD: LESSONS FROM INTERNATIONAL EXPERIENCE Selected Papers from the Asian Monetary Policy Forum 202, chapter 3, pages 2-49, World Scientific Publishing Co. Pte. Ltd..
    15. Cynthia Balloch & Yann Koby & Mauricio Ulate, 2022. "Making Sense of Negative Nominal Interest Rates," Working Paper Series 2022-12, Federal Reserve Bank of San Francisco.
    16. Bank for International Settlements, 2019. "Unconventional monetary policy tools: a cross-country analysis," CGFS Papers, Bank for International Settlements, number 63, december.
    17. Agur, Itai, 2019. "Monetary and macroprudential policy coordination among multiple equilibria," Journal of International Money and Finance, Elsevier, vol. 96(C), pages 192-209.
    18. Nikhil Patel & Paolo Cavllino, 2019. "FX intervention: goals, strategies and tactics," BIS Papers chapters, in: Bank for International Settlements (ed.), Reserve management and FX intervention, volume 104, pages 25-44, Bank for International Settlements.

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    More about this item

    Keywords

    WP; monetary policy; exchange rate; central bank; collateral constraints; currency mismatches; carry trade; spillovers; ELB constraint; credit crunch; monetary policy stance; open economy; ELB call; ELB rise; monetary policy independence; existence of an Expansionary Lower Bound; policy rate response; monetary policy in EMs; monetary policy rate; Interest rate floor; Central bank policy rate; Sovereign bonds; Exchange rates; Capital flows; Global;
    All these keywords.

    JEL classification:

    • E5 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit
    • F3 - International Economics - - International Finance
    • F42 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - International Policy Coordination and Transmission

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