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Quantitative Easing, Collateral Constraints, and Financial Spillovers

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  • John Geanakoplos
  • Haobin Wang

Abstract

The steady application of quantitative easing (QE) has been followed by big and nonmonotonic effects on international asset prices and capital flows. We rationalize these observations in a model in which a central bank buys domestic assets that serve as the best collateral for investors worldwide. The crucial insight is that domestic private agents adjust their portfolios of domestic and foreign assets in different ways to offset QE, conditional on whether they are (i) fully leveraged, (ii) partially leveraged, or (iii) unleveraged. These portfolio shifts can diminish or even reverse the impact of ever-larger QE interventions on asset prices.

Suggested Citation

  • John Geanakoplos & Haobin Wang, 2020. "Quantitative Easing, Collateral Constraints, and Financial Spillovers," American Economic Journal: Macroeconomics, American Economic Association, vol. 12(4), pages 180-217, October.
    • Handle: RePEc:aea:aejmac:v:12:y:2020:i:4:p:180-217
    DOI: 10.1257/mac.20180484
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    Cited by:

    1. Kame Babilla, Thierry U., 2023. "Digital innovation and financial access for small and medium-sized enterprises in a currency union," Economic Modelling, Elsevier, vol. 120(C).
    2. Zehao Liu & Chengbo Xie, 2023. "Haircuts, interest rates, and credit cycles," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 76(1), pages 69-109, July.

    More about this item

    JEL classification:

    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • E43 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Interest Rates: Determination, Term Structure, and Effects
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • F34 - International Economics - - International Finance - - - International Lending and Debt Problems

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