Estimating the Optimal Inflation Target from Trends in Relative Prices
Klaus Adam and
No 14335, CEPR Discussion Papers from C.E.P.R. Discussion Papers
Using the official micro price data underlying the U.K. consumer price index, we document a new stylized fact for the life-cycle behavior of consumer prices: relative to a narrowly defined set of competing products, the price of individual products tends to fall over the product lifetime. We show that this data feature has important implications for the optimal inflation target. Constructing a sticky-price model featuring a product life cycle and heterogeneous relative-price trends, we derive closed-form expressions for the optimal inflation target under Calvo and menu-cost frictions. We show how the optimal target can be estimated from the observed trends in relative prices. For the U.K. economy, we find the optimal target to be equal to 2.6% in 2016. It has steadily increased over the period 1996 to 2016 due to changes in relative price trends over this period.
Keywords: Micro price data; optimal inflation; U.K. inflation target (search for similar items in EconPapers)
JEL-codes: E31 (search for similar items in EconPapers)
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Working Paper: Estimating the Optimal Inflation Target from Trends in Relative Prices (2020)
Working Paper: Estimating the optimal inflation target from trends in relative prices (2020)
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