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...

Analyzing scanner price data that cover 27 product categories over an eight-year period from a large Mid-western supermarket chain, we uncover a surprising regularity in the data - small price increases occur more frequently than small price decreases. We find that this asymmetry holds for price...