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The Optimal Inflation Rate with Discount Factor Heterogeneity

Antoine Lepetit

No 2018-086, Finance and Economics Discussion Series from Board of Governors of the Federal Reserve System (US)

Abstract: This paper shows that deviations from long-run price stability are optimal in the presence of price stickiness whenever profit and utility flows are discounted at a different rate. In that case, a monetary authority acting under commitment will choose a path for the inflation rate that ends with a non-zero value. Such a property is relevant in a wide range of macroeconomic environments. I first illustrate this by studying optimal monetary policy in a New Keynesian model with a perpetual youth structure. In this setting, profit flows are discounted more heavily than utility flows and the optimal inflation target is equal to 3.2 percent in a baseline calibration of the model. I also show that this property leads to a positive long-run inflation rate in models with firm entry and exit and in environments with search and matching frictions in the labor market and another form of nominal rigidity, wage stickiness.

Keywords: Discount factor heterogeneity; Inflation target; Optimal inflation rate; Optimal monetary policy; Perpetual youth; Sticky prices (search for similar items in EconPapers)
JEL-codes: E31 E32 E52 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-cba, nep-dge, nep-mac and nep-mon
Date: 2018-12
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DOI: 10.17016/FEDS.2018.086

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