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Secured and Unsecured Interbank Markets: Monetary Policy, Substitution and the Cost of Collateral

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  • Thibaut Piquard
  • Dilyara Salakhova

Abstract

We study the substitution between secured and unsecured interbank markets. Banks are competitive and subject to reserve requirements in a corridor rate system with deposit and lending facilities. Banks face counterparty risk in the unsecured market and incur an opportunity cost to pledge collateral. The model provides insights on interest rates, trading volumes and substitution between the two markets. Using transaction data on the Euro money market, we provide new empirical findings that the model accounts for: (i) borrowing banks are active on both markets even when their collateral constraint is not binding, (ii) secured interest rates may fall below the deposit facility rate. We derive and empirically test predictions on how "conventional" and "unconventional" monetary policies impact interbank markets, depending on whether marketable collateral is purchased or not.

Suggested Citation

  • Thibaut Piquard & Dilyara Salakhova, 2019. "Secured and Unsecured Interbank Markets: Monetary Policy, Substitution and the Cost of Collateral," Working papers 730, Banque de France.
    • Handle: RePEc:bfr:banfra:730
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    More about this item

    Keywords

    : Monetary Policy; Interbank Markets; Secured and Unsecured Funding.;
    All these keywords.

    JEL classification:

    • E42 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Monetary Sytsems; Standards; Regimes; Government and the Monetary System
    • 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
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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