Working Paper

Asymmetric Price Adjustment in the Small


  • Levy
  • D.
  • Chen
  • H.A.
  • Ray
  • S.
  • Bergen
  • M.
Publication Date

Analyzing a large weekly retail transaction price dataset, we uncover a surprising regularity— small price increases occur more frequently than small price decreases for price changes of up to about 10 cents, while there is no such asymmetry for larger price changes. The asymmetry holds for the entire sample and for individual categories. We find that while inflation can explain some of the asymmetry, inflation is not the whole story as the asymmetry holds even after excluding inflationary periods from the data, and even for products whose price had not increased over the eight-year period. The findings hold for different measures of inflation and also after allowing for lagged price adjustments. We offer a consumer-based explanation for these findings.


JEL Classification
E31, D11, D21, D80, L11, M31

Key Words

  • Asymmetric Price Adjustment
  • Price Rigidity