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Interest on Reserves (IOR) Practice Quiz for AP Macroeconomics

Hey! ๐Ÿ‘‹ Let's test your knowledge of Interest on Reserves (IOR) for AP Macro! This quiz will help you understand how the Fed uses IOR to influence the economy. Good luck! ๐Ÿ‘
๐Ÿ’ฐ Economics & Personal Finance

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julie515 Jan 4, 2026

๐Ÿ“š Topic Summary

Interest on Reserves (IOR) is the interest rate that the Federal Reserve (the Fed) pays to commercial banks on the reserves they hold at the Fed. By adjusting the IOR rate, the Fed can influence the incentive for banks to lend money, thereby affecting the money supply and overall economic activity. Increasing the IOR rate encourages banks to hold more reserves, decreasing lending, while decreasing the IOR rate encourages lending.

IOR is a key tool in the Fed's monetary policy toolkit, especially since the 2008 financial crisis. It allows the Fed to control the federal funds rate (the target rate banks charge each other for overnight lending of reserves) even with a large quantity of reserves in the banking system.

๐Ÿง  Part A: Vocabulary

Match the terms with their definitions:

Term Definition
1. Federal Funds Rate A. The interest rate the Fed pays banks on their reserve balances.
2. Reserve Requirement B. The interest rate at which commercial banks lend reserves to each other overnight.
3. Discount Rate C. The minimum amount of reserves a bank must hold against its deposits.
4. Interest on Reserves (IOR) D. The interest rate at which commercial banks can borrow money directly from the Fed.
5. Monetary Policy E. Actions undertaken by a central bank to manipulate the money supply and credit conditions to stimulate or restrain economic activity.

โœ๏ธ Part B: Fill in the Blanks

Complete the following paragraph using the words provided: inflation, lending, reserves, interest, money supply.

When the Federal Reserve increases the ________ on ________, banks are incentivized to hold more ________ and decrease ________. This reduces the ________ and can help to control ________.

๐Ÿ’ก Part C: Critical Thinking

Explain how increasing the Interest on Reserves (IOR) rate affects the economy. Include the effects on banks, the money supply, and inflation.

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