Consumer Cognition and Pricing in the 9's in Oligopolistic Markets
The paper fully characterizes the Bertrand equilibria of oligopolistic markets where consumers may ignore the last (i.e. the right-most) digits of prices. Consumers, in this model, do not do this reflexively or out of irrationality, but only when they expect the time cost of acquiring full cognizance of the exact price to exceed the expected loss caused by the slightly erroneous amounts that would be purchased by virtue of ignoring the information concerning the last digits of prices. It is shown that in this setting there will always exist firms that set prices that end in nine though there may also be some (non-strict) equilibria where a non-nine price ending occurs. It is shown that all firms earn positive profits even in Bertrand equilibria. The model helps us understand in what kinds of markets we are most likely to encounter pricing in the 9's.
|Date of creation:||Apr 2004|
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- Kaushik Basu, 2010.
"Strategic Irrationality in Extensive Games,"
Levine's Working Paper Archive
375, David K. Levine.
- Basu, Kaushik, 1997. "Why are so many goods priced to end in nine? And why this practice hurts the producers," Economics Letters, Elsevier, vol. 54(1), pages 41-44, January.
- Bradley J. Ruffle & Ze'ev Shtudiner, 2006. "99: are retailers best responding to rational consumers? Experimental evidence," Managerial and Decision Economics, John Wiley & Sons, Ltd., vol. 27(6), pages 459-475.
- Eric Anderson & Duncan Simester, 2003. "Effects of $9 Price Endings on Retail Sales: Evidence from Field Experiments," Quantitative Marketing and Economics, Springer, vol. 1(1), pages 93-110, March.
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