When Wharton professor Marshall Fisher and colleague Vishal Gaur did a controlled pricing experiment in 18 stores belonging to the Zany Brainy retail toy chain, they came away with a surprising result. The experiment, which had been designed to measure how demand for three separate products varied with price, showed, among other things, that pricing is not always logical. In a paper entitled, “In-Store Experiments to Determine the Impact of Price on Sales,” Fisher and Gaur discuss their findings and present a methodology that they say will improve the accuracy of in-store testing.
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