Inflation targeting: what inflation rate to target?
Kevin Huang () and
Zheng Liu
No 04-6, Working Papers from Federal Reserve Bank of Philadelphia
Abstract:
In an economy with nominal rigidities in both an intermediate good sector and a finished good sector, and thus with a natural distinction between CPI and PPI inflation rates, a benevolent central bank faces a tradeoff between stabilizing the two measures of inflation: a final output gap, and unique to our model, a real marginal cost gap in the intermediate sector, so that optimal monetary policy is second-best. We discuss how to implement the optimal policy with minimal information requirement and evaluate the robustness of these simple rules when the central bank may not know the exact sources of shocks or nominal rigidities. A main finding is that a simple hybrid rule under which the short-term interest rate responds to CPI inflation and PPI inflation results in a welfare level close to the optimum, whereas policy rules that ignore PPI inflation or PPI sector shocks can result in significant welfare losses.
Keywords: Inflation; (Finance) (search for similar items in EconPapers)
Date: 2004
New Economics Papers: this item is included in nep-cba, nep-mac and nep-mon
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Citations: View citations in EconPapers (15)
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Journal Article: Inflation targeting: What inflation rate to target? (2005) 
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