Customer interviews fail when nobody defines the decision first. Use research on sample size, importance and past behaviour to turn transcripts into a decision memo.
LEGO lets fans propose sets, collect support and share in sales. Its thresholds, review process and rewards show how to turn participation into usable evidence.
A brand promise is also a cost commitment. Use this five-part test to check whether yours survives peak demand, failure costs, evidence rules and competitors.
Costco’s fiscal 2026 filings show how a fee, a narrow range and deliberate restraint turn a marketing promise into an operating model that is hard to dilute.
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