A Monetary Policy Rule for Automatic Prevention of a Liquidity Trap

Bennett McCallum ()

No 11056, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: In analyses of "liquidity trap" problems associated with the zero lower bound (ZLB) on nominal interest rates, it is important to emphasize the difference between policy rule changes, intended to help escape an existing ZLB situation, and maintained policy rules designed so as to avoid ZLB situations. Analysis assuming that rule changes would lead to a new RE equilibrium immediately seems implausible. Accordingly, the paper focuses on the design of a rule that should retain stabilization effectiveness even if the economy is temporarily shocked into a ZLB situation. The rule considered is one that uses as its instrument variable a weighted average of an interest rate and the rate of depreciation of the nominal exchange rate. With a small weight attached to the depreciation term, it will be nearly irrelevant in normal situations but call for strong adjustments when the ZLB condition prevails. Stabilizing properties of this "MC" rule are studied within a small open economy model developed by McCallum and Nelson. Results indicate that under ZLB conditions the MC rule will provide strong stabilizing policy actions yet, under conditions such that the ZLB constraint is not relevant, the MC rule need not hinder monetary policy.

JEL-codes: E52 E3 F41 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-mac and nep-mon
Date: 2005-01
Note: EFG ME
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Chapter: A Monetary Policy Rule for Automatic Prevention of a Liquidity Trap (2006)
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