Rigidities and adjustments of daily prices to costs: Evidence from supermarket data

Monica Giulietti, Jesus Otero and Michael Waterson

The Warwick Economics Research Paper Series (TWERPS) from University of Warwick, Department of Economics

Abstract: We assess the extent of inertia in grocery retail prices using data on prices and costs from a large supermarket chain in Colombia. Relative to previous work our analysis benefits from the daily frequency of the data and the availability of reliable replacement cost data. We uncover evidence supporting the existence of significant nominal rigidities in reference prices (three months) and even more so in reference costs (about five months). There is evidence that the price and cost rigidities differ depending on the type of product, being on average smaller in the case of perishable goods. Using an Error Correction Model framework, we examine the path of prices relative to costs, to determine the speed of adjustment of prices to shocks.

Keywords: nominal rigidities; prices; costs; grocery trade; error correction (search for similar items in EconPapers)
JEL-codes: C32 E31 L11 L81 (search for similar items in EconPapers)
Date: 2019
New Economics Papers: this item is included in nep-agr, nep-ind, nep-lam, nep-mac and nep-mon
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https://warwick.ac.uk/fac/soc/economics/research/w ... rp_1187_waterson.pdf

Related works:
Journal Article: Rigidities and adjustments of daily prices to costs: Evidence from supermarket data (2020)
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Persistent link: https://EconPapers.repec.org/RePEc:wrk:warwec:1187

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