MKTG5001 · Foundation In Marketing
Buyer Behaviour: Motivation & Decision Process
Buyer Behaviour: Motivation & Decision Process explains why and how customers decide. Emotion, read through Maslow, drives much everyday choice, and brands trade on associations (what consumers want to be linked to) and dissociations (what they don't). The five-step buyer decision process — need recognition, information search, evaluation of alternatives, purchase decision and post-purchase behaviour — runs longer for high-involvement decisions and shorter for low-involvement ones. With over a thousand messages a day, information overload is real, and marketers gather primary (first-hand) and secondary (pre-existing) research to understand buyers.
What this chapter covers
- 01Motivation: emotion drives everyday choice, read through Maslow
- 02Associations vs dissociations (brands consumers want / don't want to be linked to)
- 03The five-step buyer decision process
- 04Need recognition → information search → evaluation → purchase → post-purchase
- 05High- vs low-involvement decisions change the effort at each step
- 06Information overload (1000+ messages/day) and its link to IMC clutter
- 07Primary (first-hand) vs secondary (pre-existing) research
Map a purchase through the five-step decision process
- 1 markNeed recognition: the new job creates the need for a reliable, portable laptop. Marketing action — trigger ads framed around 'starting your career' so the need is salient.
- 2 marksInformation search: the buyer reads reviews, asks friends, compares specs (a long search, because the decision is high-involvement). Marketing action — supply clear comparison content and visible, credible reviews.
- 2 marksEvaluation of alternatives: the buyer weighs price, battery, weight and brand reputation against two or three shortlisted models. Marketing action — sharpen the value proposition on the attribute that matters most to this segment (e.g. battery life).
- 1 markPurchase decision: choice and checkout, where friction (stock, payment, delivery) can derail it. Marketing action — reduce friction with finance options and fast delivery.
- 1 markPost-purchase behaviour: the buyer judges performance against expectations, risking dissonance if oversold. Marketing action — onboarding emails and easy support to confirm the choice and build loyalty.
Key terms
- Buyer decision process
- The five-step path a customer takes: need recognition, information search, evaluation of alternatives, purchase decision and post-purchase behaviour.
- Involvement
- How much thought, risk and effort a purchase carries. High-involvement decisions (a car, a laptop) extend the search and evaluation steps; low-involvement ones (a snack) collapse them.
- Associations and dissociations
- The brands a consumer wants to be linked to (associations) and those they want to avoid being linked to (dissociations) — both shape choice through identity and emotion.
- Information overload
- Consumers face over a thousand marketing messages a day, creating clutter; this is why integrated, consistent messaging is needed to be noticed.
- Primary vs secondary research
- Primary research is first-hand data collected specifically for the current problem (surveys, interviews); secondary research uses pre-existing sources (reports, internal data) gathered for other purposes.
Buyer Behaviour: Motivation & Decision Process FAQ
What are the five steps of the buyer decision process?
Need recognition, information search, evaluation of alternatives, purchase decision, and post-purchase behaviour. The effort at each step grows for high-involvement purchases and shrinks for low-involvement, habitual ones.
What's the difference between primary and secondary research?
Primary research is collected first-hand for the specific problem you face (your own surveys or interviews); secondary research is pre-existing information gathered by others for other reasons (industry reports, census data). Start with cheaper secondary research, then fill gaps with primary.
Exam move
Learn the five steps cold and practise walking a fresh purchase through them, flagging where high vs low involvement changes the effort. Be ready to name a marketing action at each step and to separate primary from secondary research with an example.
