💸principles of economics review

Interest on Reserves

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

Interest on reserves refers to the interest paid by the central bank to commercial banks on the reserves they hold with the central bank. This is a key tool used by central banks, such as the Federal Reserve, to influence monetary policy and the overall banking system.

5 Must Know Facts For Your Next Test

  1. Interest on reserves allows the central bank to influence short-term interest rates and the overall level of interest rates in the economy.
  2. By raising the interest rate paid on reserves, the central bank can incentivize banks to hold more reserves, reducing the amount of money in circulation and putting upward pressure on interest rates.
  3. Conversely, lowering the interest rate on reserves can encourage banks to lend out more of their reserves, increasing the money supply and putting downward pressure on interest rates.
  4. Interest on reserves is a key tool used by central banks to implement monetary policy and achieve their economic objectives, such as price stability and full employment.
  5. The interest rate on reserves is typically set by the central bank's monetary policy committee, such as the Federal Open Market Committee (FOMC) in the case of the Federal Reserve.

Review Questions

  • Explain how the interest rate on reserves is used by the Federal Reserve to execute monetary policy.
    • The Federal Reserve uses the interest rate on reserves as a key tool to influence short-term interest rates and the overall money supply in the economy. By raising the interest rate paid on reserves, the Fed can incentivize banks to hold more of their funds as reserves rather than lending them out, which reduces the money supply and puts upward pressure on interest rates. Conversely, lowering the interest rate on reserves can encourage banks to lend out more of their reserves, increasing the money supply and putting downward pressure on interest rates. In this way, the interest rate on reserves allows the Fed to fine-tune monetary policy to achieve its economic objectives.
  • Describe how the interest rate on reserves is related to the Federal Reserve's role as the central bank and its ability to influence the overall banking system.
    • As the central bank, the Federal Reserve has the ability to set the interest rate paid on the reserves that commercial banks hold with the Fed. This interest rate on reserves is a critical tool the Fed uses to influence the behavior of banks and, in turn, the broader money supply and interest rates in the economy. By adjusting the interest rate on reserves, the Fed can encourage banks to hold more or less of their funds as reserves, which affects the amount of money available for lending and the overall level of interest rates. This allows the Fed to execute monetary policy and steer the economy towards its goals of price stability and full employment.
  • Analyze how changes in the interest rate on reserves can impact the federal funds rate and the broader financial system.
    • Changes in the interest rate on reserves can have significant impacts on the federal funds rate and the broader financial system. When the Fed raises the interest rate paid on reserves, it incentivizes banks to hold more of their funds as reserves rather than lending them out. This reduces the supply of loanable funds in the interbank market, putting upward pressure on the federal funds rate, which is the interest rate at which banks lend reserves to each other overnight. Conversely, lowering the interest rate on reserves encourages banks to lend out more of their reserves, increasing the supply of loanable funds and putting downward pressure on the federal funds rate. These changes in the federal funds rate then ripple through the broader financial system, influencing other short-term and long-term interest rates, asset prices, and the overall availability of credit in the economy.

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