Thursday, October 19, 2017

Unite Choices to Nix Unit Nixing

Shoppers decide in different ways when alternatives are presented at the same time than when alternatives are presented one after another. Knowing about these effects of simultaneous and sequential choice helps you guide the process toward the best outcome.
     Researchers at Ohio State University and Erasmus University looked into the “unit effect,” which refers to times that a shopper emphasizes the numerals at the expense of the units. One example comes from the realm of dishwasher warranties. The researchers asked a group of consumers to state how much they’d be willing to pay for a dishwasher with a five-year warranty compared to one with a three-year warranty. Another group were asked the same question in comparing a dishwasher with a warranty of 60 months with a warranty of 36 months. Notice that 60 months is the same as five years and 36 months is the same as three years. Still, prior studies indicated that people often consider the difference in value to be greater when the warranty length is stated in months rather than years. People paid more attention to the numerals than to the unit of measurement. This unit effect disrupted rational decision making.
     The Ohio/Erasmus researchers identified a way to lessen the unit effect: Present the options all at the same time before asking the shopper to evaluate any one of them. It worked with willingness to pay for TVs when screen size was stated in inches versus centimeters, ground beef in pounds versus ounces, and kitchen knives with customer ratings on a ten-point scale versus a 1000-point scale.
     There are other determinants of the unit effect. When a shopper intends to make the purchase at an indefinite point in the future, they’ll pay more attention to the units than to the numerals. For consumers who want the table delivered today, 48 by 60 inches sounds larger than four by five feet. But people who are gathering information about possibilities will code feet as larger than inches, so “four by five feet” will be remembered by them as larger.
     So you might see the unit effect nixed even with sequential presentation. But researchers at Stanford University, University of Pennsylvania, and Columbia University find another disadvantage of sequential presentation compared to simultaneous presentation: The sequential leads shoppers to keep looking for a better alternative with a consequent lower level of satisfaction with whatever choice is made.

For your success: Retailer’s Edge: Boost Profits Using Shopper Psychology

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