Less-is-better effect
A smaller, complete gift can be valued above a larger, lesser one.
What it means
A preference reversal in which a smaller or objectively inferior option is judged more valuable than a larger, superior one — but only when the two are evaluated separately rather than side by side. Because each option is assessed against the norms of its own category, an item that is an excellent example of a modest category can out-rate a mediocre example of a grander one. The effect is driven by evaluability: when the absolute scale is hard to judge in isolation, people fall back on how good the option is relative to its reference class. It vanishes under joint evaluation, where the larger quantity plainly dominates, which is precisely what makes it a striking violation of basic dominance. It matters for gift-giving, pricing, and any setting where offers are seen one at a time.
Examples
A $45 scarf (an expensive scarf) can be received as a more generous gift than a $55 coat (a cheap coat), when each is evaluated on its own.
In Hsee's ice cream study, people pay more for seven ounces overflowing a small cup than eight ounces looking sparse in a large one — until the cups sit side by side.
A candidate who is outstanding for a small regional firm can interview better than a merely average alumnus of a famous one, right up until the two CVs are read together.
First described in Christopher Hsee (1998).