Example

Example of Deflation Limiting Monetary Policy at the ZLB

When the nominal interest rate is at the zero lower bound (ZLB), deflation can prevent the real interest rate from falling to a level that would stimulate the economy. For example, if the expected rate of deflation is 1% (πE=1%\pi^E = -1\%), the real interest rate becomes fixed at 1% (r=πE=(1%)=1%r = -\pi^E = -(-1\%) = 1\%). This positive real interest rate may be too high to encourage borrowing and spending during a severe recession.

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Updated 2025-10-05

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