Why We Buy Who We Want to Be: Identity and Consumer Behaviour

A professional tool can do the same practical job as three alternatives and still feel like the only appropriate choice.

It may fit the way its buyer thinks good work should be done. It may signal membership of a profession or community. It may represent the sort of person the buyer is trying to become.

None of that makes function or price irrelevant. It means that some choices carry another kind of value: they help people express, verify or develop a sense of self.

Identity is one part of the wider psychology shaping consumer behaviour. It is not a hidden switch that a brand can activate by calling its audience ambitious. Its influence depends on what the identity means to the buyer, how central it is to their life and whether the offer provides credible evidence for it.

What is self-concept in consumer behaviour?

Self-concept in consumer behaviour is the network of beliefs, identities, roles, values and personal narratives through which someone understands who they are. A purchase becomes identity-relevant when it helps the buyer express that self, verify it privately, belong to or distance themselves from a group, or move towards a possible future self.

The phrase “network” matters. A person does not have one commercial identity waiting to be matched with a brand. They may be a parent, designer, runner, local resident, environmentalist and careful spender at the same time. Which identity influences a decision can change with the situation.

M. Joseph Sirgy’s foundational 1982 review found that self-concept research in consumer behaviour was already broad and fragmented. Later work has tried to clarify when a label becomes behaviourally meaningful. A 2012 review of identity-based consumer behaviour argued that an identity starts to guide behaviour when it becomes sufficiently central to the self-concept that someone strives to be that kind of person.

That is more useful than saying people buy things that “match their personality”. It connects the choice to a role, standard or way of acting that matters to the buyer.

Identity, signalling and self-brand connection are related but different

Marketing discussions often collapse several ideas into one claim: people use brands to show who they are. That can happen, but it is only one part of the picture.

Concept	What it means	A simple example
Self-concept	The wider set of roles, identities, values and beliefs through which a person understands themselves	“I am an independent consultant who values careful work.”
Social identity	A part of the self connected with membership of a group or category	“I am a designer” or “I support this club.”
Self-brand connection	The extent to which a brand has become linked with a person’s sense of self	A tool feels like part of how someone defines their professional practice.
Identity signalling	Using a visible choice to communicate something about the self	Clothing or equipment communicates membership of a community.
Self-congruity	The perceived fit between a buyer’s self-image and the image associated with an offer or its users	An understated brand feels consistent with the buyer’s own style.

A choice can be identity-consistent without being visible. The consultant who pays for a specialist tool may never show anybody which software they use. The decision can still verify a private standard: this is how a serious practitioner approaches the work.

That distinction prevents identity from becoming a more elaborate name for status.

A choice can support identity in several ways

Russell Belk’s influential article on possessions and the extended self helped establish the idea that possessions can contribute to how people construct and maintain a sense of self. The claim is not that everything we own becomes part of us. It is that some objects, places, experiences and brands acquire personal meaning beyond their immediate function.

In consumer decisions, that meaning can do at least four different jobs.

It can verify something privately

A buyer may choose the repairable product, the local supplier or the professional tool because the choice fits a standard they already hold.

Nobody else needs to see it. The choice provides evidence to the buyer that their actions are consistent with what they value.

It can communicate something publicly

Some categories carry shared meanings that make them useful signals. Research by Jonah Berger and Chip Heath found that people were more likely to diverge from others in identity-relevant product domains, where a choice could communicate something about them.

The audience still matters. A signal only works when other people recognise roughly the same meaning.

It can create belonging and difference

People can move towards groups they value and away from associations they reject.

Jennifer Edson Escalas and James Bettman found that member and aspiration groups can contribute to self-brand connections. Their later research showed that the effect of in-group and out-group brand meanings also varied with self-construal and how symbolic the brand was.

This is where identity meets social influence in decision-making, but the two mechanisms are not the same. Social proof can make an option feel popular or safe. Identity makes the group’s meaning relevant to the self.

It can represent a future self

A course, tool or membership can feel like evidence of progress towards a desired way of living or working.

That does not mean the purchase creates the change. Buying running shoes does not make somebody a runner. But the product may support an identity-related goal when it is followed by the behaviour the identity requires. Our article on goals in consumer behaviour explains why the desired outcome must still organise action.

The same identity does not guide everyone equally

Calling two people “football supporters” tells you less than it first appears to.

For one person, the identity may connect with family memories, friendships, place and weekly routines. For another, it may be an occasional interest. Both use the same label, but it occupies a different position in their self-concept.

Recent research calls this causal centrality: how strongly someone believes an identity is connected through cause and effect with other parts of who they are.

Stephanie Chen, Oleg Urminsky and Jiaqi Yu tested this account across seven main studies and six supplementary studies. People were more likely to make identity-consistent choices when the relevant identity was more causally central to their self-concept. Their settings included brand choice, football supporters’ willingness to spend and environmentally relevant decisions. One study manipulated perceived centrality rather than only measuring it.

The researchers also distinguished centrality from salience. An identity can be brought to mind without being deeply connected to the rest of the self. Repeating “as a founder…” in an advert may make a founder identity noticeable, but it does not make the advertised behaviour consistent with what that identity means to the reader.

The practical lesson is not to find a more powerful identity cue. It is to stop treating membership of a segment as proof of motivation.

Products get their identity meaning from context

A brand cannot decide by itself what a product says about its user.

Meanings develop through product experience, advertising, communities, media and the people perceived to use the brand. They can also differ between groups.

Katherine White and Darren Dahl found that products associated with a group somebody actively wanted to avoid could have a stronger negative effect than products linked with an unrelated out-group. But their dissociative-group research also showed that the effect depended on factors including how strongly the person identified with their own group and whether that identity was made relevant.

This makes identity-based positioning unusually easy to mishandle.

A software company may describe its product as “built for hustlers”, believing it has created an attractive badge. A careful business owner may hear something entirely different: rushed work, unnecessary intensity or a culture they do not want to join.

The phrase has not uncovered an identity. It has imposed one.

An identity link does not guarantee loyalty

Even a real connection between a product and the self does not control every later choice.

Liad Weiss and Robin Tanner distinguish between identities that depend on products for their expression and identities that do not. A chef may need particular tools to perform the role, while a foodie identity may depend less on owning specific products.

Across seven studies, they found that making a product-independent identity prominent could weaken preference for self-linked products and brands without removing the self-link itself.

This is an important boundary. Identity is dynamic, several identities can compete and some have weak or contested norms. A brand may be meaningful without being indispensable.

It also explains why identity should not be used as an excuse to neglect function. If the product stops helping somebody act in the way they value, symbolic language will not repair the gap.

How to use identity without stereotyping customers

Identity-led messaging should begin with evidence about the audience, not a flattering adjective added to a headline.

Use these five questions in a positioning or messaging session.

1. Which identity or role is genuinely relevant to the problem? A professional role, community or way of working is more useful than a generic ambition to be successful.
2. What does that identity mean in customers’ own words? Interviews, sales conversations and support questions are safer sources than assumptions based on age or job title.
3. What makes the offer credible for that identity? Connect the message to the product, process, standards and outcomes. The buyer needs evidence, not only recognition.
4. Who could the shorthand exclude or misrepresent? Test whether the language relies on a stereotype or treats one version of the group as the only valid one.
5. Can somebody decline the offer without having their identity challenged? “People who care choose us” turns a commercial decision into a moral test. That pressure is rarely necessary.

Compare two hypothetical messages for the same service.

Built for ambitious disruptors who refuse to settle.

The sentence offers a badge but says little about the work. It asks the reader to accept the identity before they understand the service.

For small teams that want a dependable publishing process without building a content department.

This version still speaks to a way of working. It is independent, practical and resource-conscious. But it gives the reader something concrete to recognise and evaluate.

Identity can contribute to how value is perceived. It works best when that symbolic value grows from a useful offer rather than attempting to replace one.

Recognition is stronger than manufactured insecurity

Identity-based marketing becomes manipulative when it creates shame, threatens belonging or suggests that buying is the price of being a legitimate member of a group.

That is also weak positioning. It depends on pressure the brand cannot sustain once the customer encounters the product itself.

The more durable approach is recognition. Show that you understand how the right customer wants to work, what they value and the standard they are trying to meet. Then demonstrate how the offer supports that behaviour.

A brand cannot give somebody an identity merely by declaring it.

The useful message helps people recognise how they want to act—and leaves them free to decide whether the offer belongs in that picture.

Frequently asked questions

What is self-concept in consumer behaviour?

Self-concept is the wider set of identities, roles, values, beliefs and personal narratives through which someone understands themselves. In consumer behaviour, it matters when a product, service or brand helps express, verify or develop one of those aspects of the self.

What is the difference between self-concept and consumer identity?

Self-concept is the broader network of what somebody believes about themselves. A consumer identity is one identity within that network that becomes relevant to marketplace behaviour, such as being a runner, designer, supporter or environmentally conscious buyer.

Is identity-based consumption the same as status signalling?

No. Status signalling is one possible social function of a choice. Identity-based consumption can also involve private self-verification, belonging, differentiation or progress towards a future self. Some identity-relevant products are never visible to anybody other than the buyer.

How can identity affect buying behaviour?

An identity can guide attention, interpretation and preference when the choice is relevant to what that identity means. Its influence depends on factors including centrality, context, group meanings and whether the product genuinely supports identity-consistent behaviour.

How can a brand use identity without stereotyping customers?

Start with customer research, use the audience’s own language and connect the identity to credible product evidence. Leave room for variation within the group, and avoid messages that question somebody’s legitimacy, values or belonging if they do not buy.