Antitrust & Competition Policy Blog

Editor: D. Daniel Sokol
University of Florida
Levin College of Law

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Thursday, August 1, 2013

Not All Price Endings Are Created Equal: Price Points and Asymmetric Price Rigidity

Posted by D. Daniel Sokol

Avichai Snir, Department of Banking and Finance, Netanya Academic College, Daniel Levy Department of Economics, Bar-Ilan University, Department of Economics, Emory University, Alex Gotler, Department of Education and Psychology, Open University, Haipeng (Allan) Chen, Department of Marketing, Mays Business School, Texas A&M University explain that Not All Price Endings Are Created Equal: Price Points and Asymmetric Price Rigidity.

ABSTRACT: There is evidence that 9-ending prices are more common and more rigid than other prices. We use data from three sources: a laboratory experiment, a field study, and a large US supermarket chain, to study the cognitive underpinning and the ensuing asymmetry in rigidity associated with 9-ending prices. We find that consumers use 9-endings as a signal for low prices, and that this signal interferes with price information processing. Consequently, consumers are less likely to notice a bigger price when it ends with 9, or a price increase when the new price ends with 9, in comparison to a situation where the prices end with some other digit. We also find that retailers respond strategically to this consumer bias by setting 9-ending prices more often after price increases than after price decreases. 9-ending prices, therefore, usually increase only if the new prices are also 9- ending. Consequently, there is an asymmetry in th! e rigidity of 9-ending prices: they are more rigid than non 9-ending prices upward but not downward.

http://lawprofessors.typepad.com/antitrustprof_blog/2013/08/not-all-price-endings-are-created-equal-price-points-and-asymmetric-price-rigidity-.html

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