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In 2000, psychologists Sheena Iyengar and Mark Lepper set up a tasting booth at Draeger's, an upscale grocery store in Menlo Park, California. On one Saturday, they displayed 24 varieties of Wilkin & Sons jam. On another, just 6. The results stunned the marketing world. The large display drew 60% of passing shoppers to stop and taste. The small display attracted only 40%. But when it came time to buy, the numbers flipped dramatically: only 3% of shoppers who saw 24 jams purchased one. A full 30% of those who saw 6 jams bought a jar. Ten times the conversion rate. Mira, a product manager at a streaming service, read the study and recognized her own platform's problem. Their catalog had grown to 15,000 titles. Users spent an average of 18 minutes browsing before selecting something — and ...
Popular framing: More options is always better; people just need to make up their minds.
Structural analysis: Choice generates evaluation cost, and beyond a small threshold the cost of comparing exceeds the marginal value of having more options — diminishing returns become negative returns. The downstream feedback loop is anchoring on regret: with 24 jams, every choice forgoes 23 alternatives, lowering reported satisfaction with the one selected. The mechanism repeats across catalogs, retirement plans, dating apps — wherever evaluation cost scales faster than choice value.
Collapsing the paradox to 'fewer = better' obscures the actual mechanism — cognitive overload from unsupported evaluation — and leads to interventions (culling catalogs) that discard genuine value for users with niche preferences. Understanding the structural cause points instead toward investment in discovery architecture: personalization, progressive disclosure, and satisficing interfaces that make large catalogs navigable without making them visible all at once.
