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Why willingness to pay is the wrong question

The question should not be "what are you willing to pay?" but "what do you accept paying?". Willingness to pay measures a hypothetical upper limit. Acceptance measures real behavior.

"What are you willing to pay for this product?" That is the standard question in thousands of pricing studies. The problem is that it measures the wrong thing. Willingness to pay (WTP) captures a hypothetical maximum — what the consumer says they could imagine paying. But purchase decisions are not made at that limit. They are made at the acceptance point — the price at which the consumer stops considering and actually buys.

The difference is not semantic. WTP data systematically overestimates willingness to pay by 20-40% compared with observed transactions. This is because the question activates a different mode of thinking — hypothetical reasoning instead of realistic assessment. The consumer in the store does not ask "what is the maximum I can pay?" but "is this price OK?".

Reflect uses acceptance-based measurement methods. We do not ask what the consumer wants to pay. We measure whether they accept a given price in a realistic choice situation. That produces data that matches reality.

Key takeaways

  • WTP measures hypothetical maximum, not real behavior
  • WTP overestimates willingness to pay by 20-40% on average
  • Acceptance-based measurement gives forecasts that match better
  • The question formulation determines which type of thinking is activated
  • Reflect measures price acceptance in realistic choice situations

Example

Two studies on the same product: a WTP study indicated an optimal price point of 45 SEK. An acceptance study showed that real purchase intent fell sharply already at 38 SEK. The company that followed the WTP study lost 25% volume during the first quarter after launch.

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