The reason rationing changes what people want

A whisky is available in unlimited quantities and sells steadily. The distillery announces a quota: two bottles per customer. Sales accelerate, and the buyers describe the whisky in more favourable terms than before the quota. The liquid is the same; the access has changed, and the change in access has changed the perceived quality.

What everyone sees

The rush looks like rational stockpiling: if supply is limited, buy now. Stockpiling explains the volume but not the taste ratings, which rose alongside the sales. The buyers are not just buying more; they are enjoying it more, and the enjoyment is produced by the restriction rather than by the liquid.

What is actually happening

Worchel, Lee and Adewole demonstrated the basic scarcity effect: cookies from a jar that was nearly empty were rated as more desirable than identical cookies from a full jar, and the effect was strongest when the scarcity was due to social demand. Brehm’s reactance theory adds a motivational component: a restriction on freedom increases the attractiveness of the restricted option as a way of restoring the perceived freedom. The quota converts the whisky from a purchase into a scarcity, and scarcity activates both the commodity-theory valuation and the reactance motivation simultaneously.

Why it stays hidden

The preference change hides because the buyer attributes their increased enjoyment to the product itself. They believe the whisky tastes better because they are paying more attention to it, or because anticipation improved the experience. Both are plausible but secondary: the primary driver is the inference that a restricted product must be worth restricting, and the inference is installed before the bottle is opened.