Brand Equity: What It Is, How It’s Measured, and How Everyday Ads Erode It

Brand equity is the value a brand adds to a product beyond what the product itself delivers. It is the reason a customer chooses one pair of running shoes over a near-identical pair, pays more for a watch with a particular name on the dial, or forgives a mistake from one company that they wouldn’t forgive from another. In practical terms, brand equity shows up as price premium, preference and loyalty.

This guide covers what brand equity consists of, the two models most marketers use, how it is measured, and a source of erosion that standard brand tracking tends to miss: the thousands of everyday ads that carry the brand’s name.

What brand equity means

Brand equity is built from what people know, feel and believe about a brand. Two products can be identical in function; the one with stronger equity will be chosen more often, at a higher price, with less persuasion.

It has two sides:

• Customer side: awareness, associations, perceived quality and loyalty in the minds of customers.
• Financial side: the value those perceptions create for the business, for example the ability to charge a premium or the brand’s value in an acquisition.

Most marketing decisions affect the customer side directly. The financial side follows from it over time.

Brand equity models

Aaker’s brand equity model

David Aaker, in Managing Brand Equity (1991), described brand equity as a set of assets linked to a brand’s name and symbol. The five components:

Component	What it means
Brand loyalty	How likely customers are to stay with the brand
Brand awareness	How easily customers recognize and recall it
Perceived quality	How customers judge its quality relative to alternatives
Brand associations	What customers connect with the brand: attributes, uses, personality, values
Other proprietary assets	Patents, trademarks, channel relationships

Keller’s customer-based brand equity (CBBE) model

Kevin Lane Keller’s customer-based brand equity model describes equity as the effect that brand knowledge has on how customers respond to marketing. It is often drawn as a pyramid of four stages:

1. Salience: do customers know the brand and think of it in the right situations?
2. Performance and imagery: what does the brand do, and what does it represent?
3. Judgments and feelings: what do customers think and feel about it?
4. Resonance: how strongly do they relate to it: loyalty, attachment, community, active engagement?

Both models agree on the main point: equity lives in customers’ memory and is shaped by every encounter with the brand, not only by flagship campaigns.

How brand equity is measured

There’s no single number, so most companies combine several measures:

• Brand tracking surveys: awareness, consideration, preference, perceived quality, and associations over time.
• Price premium: how much more customers pay for the brand than for comparable alternatives.
• Loyalty and retention: repeat purchase, churn and share of wallet.
• Search demand: branded search volume as a signal of salience.
• Financial valuation: the brand’s value as an intangible asset, used in M&A and accounting.

These measures share a limitation: they are lagging. They show that equity has changed months after the cause.

How brand equity is built

Equity is built by consistency over time: the same positioning, expressed in the same voice, reinforced across every touchpoint. A clear positioning statement and a brand messaging framework define what should be repeated. Everything else is execution, and execution is where most of the risk sits.

How everyday advertising erodes brand equity

Brand campaigns get attention, budget and senior review. Performance ads, product listings and retailer promotions get volume. Customers meet the brand far more often through the second group, and that is where equity is spent without anyone deciding to spend it.

Discount framing. When the brand appears mostly next to “% off” and “sale”, the association customers form is price, not quality. We describe this in discount capture.

Generic copy. Template ads that could belong to any competitor build no associations at all. In our benchmark of premium retailers’ Google Ads, 37% of headlines were generic templates and 42% led with a discount; only 21% said anything about the brands being sold.

Inconsistency across sources. In-house teams, agencies, retailers and AI tools each describe the brand slightly differently. Each difference is small; together they blur the associations that equity depends on. This gradual process is what we call brand dilution.

Because brand tracking is a lagging measure, this kind of erosion is usually visible in the surveys long after the ads that caused it have run.

Protecting brand equity in day-to-day marketing

1. Write the strategy down in checkable form. Positioning, messages, voice and the things the brand never says.
2. Extend it to partners. Retailers and agencies that advertise the brand need the same rules. See co-op advertising for how brands tie retailer advertising to their guidelines.
3. Check content before it runs. A leading indicator: the share of ads that match the strategy, measured before publication, shows the direction of travel long before a tracking survey does.
4. Organize ownership. Who checks what, and what happens when content fails, is the subject of brand governance.

FAQ

Vashor checks every ad against the brand’s declared strategy before it is published, so everyday advertising reinforces brand equity instead of spending it. It never writes the copy. See how Vashor checks your content →