Consumer Behaviour vs Consumer Psychology: The Difference

A restaurant in Gandhinagar had a puzzle: the people who came loved it, and not enough people came. The first half of that sentence is behaviour, something you can count. The reason fewer people came than should have is psychology, something you have to work out. The two terms get used as if they meant the same thing, and the difference decides which problem you end up fixing.

What is the difference between consumer behaviour and consumer psychology?

Consumer behaviour is the study of what people do as consumers: how they search, choose, buy, use and eventually discard products, services and experiences. It is a field of marketing in its own right, the one taught in courses and textbooks such as Michael Solomon's Consumer Behavior, and it draws on economics, sociology and psychology.

Consumer psychology is the part that asks why. It studies the mental processes behind those actions: attention, perception, memory, emotion, motivation and judgement. It is its own academic discipline, with its own society and its own Journal of Consumer Psychology.

Put simply: behaviour is what happened, psychology is why it happened, and marketing needs both to change what happens next.

Consumer behaviour vs consumer psychology: examples

The same situation, seen both ways:

Behaviour: many visitors leave at the delivery-charge step. Psychology: a cost that appears at the end feels like a loss, and people react more strongly to losses than to equal gains.
Behaviour: an ad gets plenty of clicks and few purchases. Psychology: the page doesn't keep the ad's promise, and the mismatch reads as a bait and switch.
Behaviour: customers buy twice and stop. Psychology: the second purchase didn't become a habit, or the product didn't live up to what the first one led them to expect.
Behaviour: diners who visit love the restaurant, but few visit. Psychology: an unfamiliar place feels like a risk, and people don't take the risk without a reason, such as a friend's recommendation or a photo that makes the food look worth it.

In every pair, the behaviour tells you where to look, and the psychology tells you what to change.

How do you measure consumer behaviour and consumer psychology?

Behaviour is measured with data you probably already have: analytics, sales records, repeat-purchase rates, heatmaps, the drop-off at each step of a checkout.

Psychology needs you to ask, or to read what people already wrote: customer interviews, short surveys, watching someone use your site, and reviews. Reviews are underrated research. Your own and your competitors' reviews are full of customers explaining, unprompted, why they chose and what disappointed them.

Which matters more for marketing?

Neither works alone. Behaviour without psychology produces fixes that treat the symptom, such as a discount to rescue a checkout that fails for a different reason. Psychology without behaviour produces theories nobody tested. The useful loop is to spot a pattern in the data, find out why, change one thing, and watch the data again.

Questions

Is consumer behaviour part of psychology?

Partly. Consumer behaviour is usually taught as a field of marketing that borrows from psychology, sociology and economics. Consumer psychology is the psychological branch of it, concerned with the mental processes behind the choices.

What are the 4 types of consumer behaviour?

A common model, from Henry Assael, sorts buying by how involved the buyer is and how different the brands are: complex buying behaviour (high involvement, big differences, such as a car), dissonance-reducing (high involvement, small differences, such as a sofa), habitual (low involvement, small differences, such as salt) and variety-seeking (low involvement, big differences, such as biscuits).

What does a consumer psychologist do?

Studies how people perceive, decide and feel as consumers, through experiments, surveys and observation. In marketing, the same methods show up as message testing, research interviews and experiments on pricing and presentation.

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