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Zero Lower Bound (ZLB) on Nominal Interest Rates
The zero lower bound (ZLB) is the principle that nominal interest rates cannot be negative. If a central bank's policy rate were negative, individuals and firms would prefer to hold physical cash rather than deposit money in a bank, as they would be charged for doing so. This reality sets a floor of zero for the nominal policy rate. The ZLB becomes a major challenge during a deep recession because a policy rate of zero may be insufficient to achieve a real interest rate low enough—potentially even a negative one—to adequately stimulate spending and promote economic recovery.
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Introduction to Macroeconomics Course
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Deflationary Expectations and Postponed Consumption
Zero Lower Bound (ZLB) on Nominal Interest Rates
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Central Bank Policy Dilemma in a Deflationary Environment
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Asymmetry in Monetary Policy Effectiveness Against Inflation vs. Deflation
The Need for Negative Real Interest Rates in a Deep Recession
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The Floor on Policy Interest Rates
The Real Interest Rate Floor at the Zero Lower Bound
Insufficiency of Conventional Monetary Policy After the 2007-2009 Crisis