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Rank products for each shopper, not one bestseller list for all

Oct 10
3 min read

Updated: Oct 11

Public-domain art plate: Audubon — Snowy Owl, Birds of America (1827-1838)
Snowy Owl, a plate from John James Audubon's The Birds of America (1827-1838).

When every shopper sees the same bestseller list, the store loses sales.


The study. Researchers from Northwestern University and Wayfair ran a 2-year field experiment with 9 million shoppers. Some shoppers saw product rankings based on their own browsing, and other shoppers saw a bestseller list.


The finding. Personal rankings increased purchases by 2.4% and revenue by 2.1%. Clicks did not change, but shoppers bought more of what they saw.

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