Brand Equity: The Invisible Asset That Makes People Pay More for the Same Thing

I was in a grocery store a few months ago watching someone reach past a perfectly fine store-brand ibuprofen ($4.99 for 200 tablets) to grab the Advil ($11.99 for 100 tablets). Same active ingredient, same dosage, same FDA approval. The only difference was the name on the box. That price premium, that instinctive reach, that trust built over decades of advertising and consistent experience: that is brand equity.

Brand equity is one of those concepts that every marketer talks about but struggles to define precisely. Partly because the two most influential thinkers on the topic, David Aaker and Kevin Lane Keller, defined it differently. And partly because brand equity lives in the gap between what a product is worth functionally and what people will actually pay for it.

Defining Brand Equity

Brand equity is the commercial value that derives from consumer perception of a brand name, rather than from the product or service itself. It is the premium that a brand commands over an unbranded equivalent.

David Aaker defined it as "the set of brand assets and liabilities linked to a brand, its name, and symbol, that add to or subtract from the value provided by a product or a service." Note the "subtract" part. Brand equity can be negative. Ask anyone who owned a Volkswagen during the 2015 emissions scandal.

Keller's definition is more consumer-centric: brand equity is "the differential effect that brand knowledge has on consumer response to the marketing of that brand." In simpler terms, it is what happens in a customer's brain that makes them behave differently toward your product than toward an identical unbranded product.

Both definitions are useful. Aaker's model is better for strategic planning and asset valuation. Keller's model is better for understanding consumer psychology and brand positioning decisions.

The Two Major Models

Aaker's Brand Equity Model (Five Pillars)

David Aaker's 1991 framework identifies five components that build (or erode) brand equity:

I find Aaker's model most useful when talking to CFOs and finance teams. It frames brand as an asset on the balance sheet, which connects directly to goodwill in accounting terms. When a company acquires another company for more than its tangible assets, that premium is partly brand equity showing up as goodwill.

Keller's Customer-Based Brand Equity (CBBE) Pyramid

Keller's 1993 framework structures brand equity as a pyramid with four levels:

Level 1: Identity (Who are you?) Brand salience, top-of-mind awareness. Can customers recognize and recall your brand in the right contexts?

Level 2: Meaning (What are you?) Brand performance (functional attributes) and brand imagery (psychological and social meaning). This is where brand image lives.

Level 3: Response (What do I think/feel about you?) Brand judgments (quality, credibility, consideration, superiority) and brand feelings (warmth, fun, excitement, security, social approval, self-respect).

Level 4: Relationships (What connection do I have with you?) Brand resonance: intense loyalty, active engagement, sense of community, attitudinal attachment. This is the peak, where customers become advocates.

Qualtrics has a particularly good comparison of the two models, noting that Keller's approach is "more heavily based on an emotional response created with the customer, whereas Aaker focuses on recognition and how well the brand is known."

I think the best approach is using both. Aaker's model for the boardroom, Keller's for the marketing team.

Measuring Brand Equity: The Numbers

Brand equity is notoriously hard to measure precisely, but several frameworks attempt it:

Financial valuation. Kantar BrandZ publishes the most widely cited brand value rankings. In 2025, the top five most valuable brands were:

The Global Top 100 reached a record total brand value of $10.7 trillion, a 29% year-over-year increase. US brands now comprise 82% of total value, up from 63% in 2006. ChatGPT entered the rankings as the most valuable newcomer.

Consumer-based metrics. Net Promoter Score (NPS), brand awareness surveys, purchase intent studies, and conjoint analysis all provide consumer-side signals of brand equity.

Market-based metrics. Price premium analysis (how much more can you charge vs. generic), market share relative to advertising spend, and customer lifetime value all serve as market-based proxies.

How Brand Equity Gets Built (and Destroyed)

Building brand equity is slow work. Destroying it can happen in a news cycle.

Building brand equity:

Consistency is the engine. Coca-Cola has been telling essentially the same brand story (happiness, togetherness, refreshment) for over a century. Every touchpoint reinforces the same associations. This consistency compounds like interest.

Product quality matters more than advertising. No amount of marketing spend can build lasting equity for a bad product. Advertising awareness creates trial; product experience creates loyalty.

Distinctive brand assets (logos, colors, sounds, characters, taglines) create mental shortcuts. Byron Sharp's research at the Ehrenberg-Bass Institute shows that distinctive assets are the mechanism through which brand equity operates in real purchase situations.

Destroying brand equity:

Inconsistency erodes equity. When a premium brand starts discounting aggressively, it trains customers to wait for sales and damages perceived value. This connects to price signaling and prestige pricing.

Scandals and trust violations can wipe out decades of equity overnight. Facebook's Cambridge Analytica scandal, Boeing's 737 MAX crisis, and Wells Fargo's fake accounts all demonstrate how quickly brand equity can evaporate.

Brand extension overreach dilutes equity. When a brand stretches too far from its core (brand extension), consumers lose clarity about what the brand stands for. Colgate once launched frozen dinners. It did not go well.

Brand Equity and the P&L

Brand equity shows up in financial statements in several ways, and marketers who understand this earn more credibility with the C-suite:

Price premium. Brands with high equity can charge more. Apple's iPhone consistently commands 30-40% price premiums over comparable Android devices, which flows directly to gross margin.

Lower customer acquisition cost. Strong brands benefit from organic demand (people search for them by name), reducing dependency on paid acquisition. This improves ROMI.

Higher retention rate. Brand loyalty, a component of equity, directly reduces churn rate. A 5% increase in retention can increase profits by 25-95%, according to Bain & Company research.

Resilience during downturns. Brands with high equity lose less market share during recessions because customer loyalty provides a buffer against price-based competition.

Brand Equity in the AI Search Era

This is something I think about a lot. As AI search (Google AI Overviews, ChatGPT, Perplexity) becomes a primary way people discover and evaluate brands, brand equity may manifest differently.

In traditional SEO, brand equity shows up as branded search volume. People who know your brand search for it by name, which sends strong signals to Google about authority and relevance.

In AI search, brand equity shows up as citation frequency. When an AI model recommends "brands like X" or "the best Y for Z," the brands it mentions are the ones with the strongest equity signals in its training data. This is why building brand equity through authoritative content, press mentions, and third-party citations matters more than ever.

Semrush and Ahrefs have both published research suggesting that brands mentioned frequently in high-authority contexts are more likely to be cited by AI models. Brand equity, in this new environment, is partly a function of how often and how positively your brand appears in the corpus of content that AI models learn from.

Thought Leaders and Key Voices

David Aaker (UC Berkeley, Prophet) created the foundational framework with Managing Brand Equity (1991) and Building Strong Brands (1996). His five-pillar model remains the most widely taught in business schools.

Kevin Lane Keller (Tuck School of Business at Dartmouth) developed the CBBE pyramid and co-authored Strategic Brand Management with Philip Kotler. His consumer-psychology approach influenced a generation of brand managers.

Byron Sharp (Ehrenberg-Bass Institute, University of South Australia) challenged established brand equity thinking in How Brands Grow (2010), arguing that mental and physical availability matter more than deep loyalty. His work has been particularly influential at Procter & Gamble, Mars, and Unilever.

Kantar publishes the annual BrandZ Global Top 100, the most comprehensive financial valuation of brand equity. Interbrand publishes a competing ranking. Both provide useful benchmarks.

FAQs

What is brand equity in simple terms?

Brand equity is the extra value a brand name adds to a product or service beyond its functional worth. It is why people pay more for Tylenol than generic acetaminophen, even though the pill inside is identical.

How is brand equity measured?

Through a combination of financial metrics (price premium, brand valuation), consumer metrics (awareness, perceived quality, loyalty, NPS), and market metrics (market share relative to ad spend, customer lifetime value).

What is the difference between Aaker's and Keller's brand equity models?

Aaker's model focuses on five brand assets (awareness, perceived quality, associations, loyalty, proprietary assets) and is more strategically oriented. Keller's CBBE pyramid focuses on the consumer journey from awareness to deep emotional resonance and is more psychologically oriented.

Can brand equity be negative?

Yes. If consumer associations with a brand are predominantly negative (distrust, poor quality, scandal), the brand name actively hurts the product. The brand would sell better without the name attached.

How does brand equity show up on a balance sheet?

Brand equity is captured in the goodwill line item during acquisitions. When a company is purchased for more than its net tangible assets, the premium includes brand value. Some companies also report brand value as an intangible asset.

What is the most valuable brand in the world?

Apple, valued at $1.3 trillion by Kantar BrandZ in 2025. Apple has held the top position for several consecutive years, driven by brand loyalty, perceived quality, and premium pricing power.

How does AI search affect brand equity?

AI search models (like Google AI Overviews and ChatGPT) recommend brands based on patterns in their training data. Brands with strong equity signals (frequent, positive mentions in authoritative content) are more likely to be cited and recommended by AI.

How long does it take to build brand equity?

Years to decades. Brand equity compounds through consistent messaging, reliable product quality, and cumulative customer experiences. There are no shortcuts, though viral moments can accelerate awareness (the first level of equity).

Sources & References

1. Aaker, D. (1991). Managing Brand Equity. Free Press.
2. Keller, K.L. (1993). "Conceptualizing, Measuring, and Managing Customer-Based Brand Equity." Journal of Marketing, 57(1), 1-22.
3. Sharp, B. (2010). How Brands Grow. Oxford University Press.
4. Kantar BrandZ 2025 Global Top 100
5. Qualtrics: Customer-Based Brand Equity Models: Keller vs. Aaker
6. Criterion Global: Brand Equity Theory Models
7. Canva: How to Build Brand Equity in 2025
8. The Branding Journal: What is Brand Equity?
9. Bain & Company: The Value of Customer Retention

Written by Conan Pesci | April 4, 2026 | Markeview.com

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