People buy on emotion and justify with logic. Sell to the first and arm them for the second.
A coaching framework on buying behaviour; no single originator.
The decision is usually made on how someone feels, then defended with reasons. A pitch that only supplies reasons never triggers the decision; one that only supplies feeling leaves them unable to defend it.
The emotional driver comes first: fear of getting it wrong, relief, ambition, status, the desire to stop thinking about a problem. That is what makes someone move.
The logical justification comes second, and it matters because the buyer has to explain the decision — to a partner, a board, a colleague, or to themselves at three in the morning.
Sell to the want, then supply the reasons. The case study, the figures, the guarantee and the specification are not what convinces them; they are what lets them defend having been convinced.
A proposal that is all numbers and no relief has answered the second question without ever triggering the first. See also [wants versus needs].
Links to market research — qualitative research is how you find the emotional driver; quantitative tells you how common it is.