In blind taste tests run since the 1970s, a majority of tasters have often preferred Pepsi's taste over Coca-Cola's when they don't know which is which — the "Pepsi Challenge." And yet Coca-Cola has remained the better-selling, more highly valued brand for decades. The gap between which tastes better blind and which people actually buy and enjoy is exactly what the concept of brand equity is built to describe: a brand's name and identity can measurably change the experience of a product, not just people's willingness to pay for it.
When the label changes what your brain reports tasting
The clearest evidence for this isn't just sales data — it's neuroscience. In a widely cited 2004 study, neuroscientist Read Montague and colleagues gave people Coke and Pepsi under blind conditions, then again with the brand visible, scanning their brains throughout. Once participants could see which drink was which, many people's reported preference shifted toward Coke — and brain activity in regions associated with memory and self-image, not just taste processing, changed too when the Coke brand became visible. That pattern suggests the brand itself was altering something upstream of simple flavour perception, rather than just tipping a close preference after the fact.
Brand equity as a real, if hard to price, asset
This is the underlying logic behind treating a brand as a genuine financial asset, distinct from the physical product itself. Companies and analysts estimate "brand equity" as the extra value — in price premium customers will pay, in loyalty, in the ease of launching new products under a trusted name — that a strong brand generates beyond what the product's raw features alone would justify. Some of the world's most valuable companies carry brand valuations in the tens of billions of dollars, treated by accountants and acquirers as a real, if famously difficult to price, asset.
What we're still unsure about
Exactly how much of brand-driven preference reflects a real, measurable shift in perceptual experience — as the Montague study's brain-imaging results suggest — versus a reported preference shaped by social desirability and self-image, wanting to say you prefer the "cooler" brand, is still debated among marketing researchers and neuroscientists. Studies like Montague's, however influential, have real limits: modest sample sizes, a single product category, and results that haven't always replicated as cleanly with other brand pairs. That makes sweeping claims about "the neuroscience of branding" more provisional than the popular retelling of this particular study usually suggests.
This sits inside Branding & Brand Equity, one of seven topics in Marketing, one of four domains in Business, one of seventeen subjects the app can quiz you on.