Brand equity is a phrase used in the marketing industry which describes the value of having a well-known brand name, based on the idea that the owner of a well-known brand name can generate more money from products with that brand name than from products with a less well known name, as consumers believe that a product with a well-known name is better than products with less well-known names.
It refers to the value of a brand. In the research literature, brand equity has been studied from two different perspectives: cognitive psychology and information economics. According to cognitive psychology, brand equity lies in consumer’s awareness of brand features and associations, which drive attribute perceptions. According to information economics, a strong brand name works as a credible signal of product quality for imperfectly informed buyers and generates price premiums as a form of return to branding investments. It has been empirically demonstrated that brand equity plays an important role in the determination of price structure and, in particular, firms are able to charge price premiums that derive from brand equity after controlling for observed product differentiation.
Some marketing researchers have concluded that brands are one of the most valuable assets a company has, as brand equity is one of the factors which can increase the financial value of a brand to the brand owner, although not the only one. Elements that can be included in the valuation of brand equity include (but not limited to): changing market share, profit margins, consumer recognition of logos and other visual elements, brand language associations made by consumers, consumers’ perceptions of quality and other relevant brand values.
Consumers’ knowledge about a brand also governs how manufacturers and advertisers market the brand. It is created through strategic investments in communication channels and market education and appreciates through economic growth in profit margins, market share, prestige value, and critical associations. Generally, these strategic investments appreciate over time to deliver a return on investment. This is directly related to marketing ROI. It can also appreciate without strategic direction. A Stockholm University study in 2011 documents the case of Jerusalem’s city brand. The city organically developed a brand, which experienced tremendous brand equity appreciation over the course of centuries through non-strategic activities. A booming tourism industry in Jerusalem has been the most evident indicator of a strong ROI.
While most brand equity research has taken place in consumer markets, the concept  is also important for understanding competitive dynamics and price structures of business-to-business markets. In industrial markets competition is often based on differences in product performance. It has been suggested however that firms may charge premiums that cannot be solely explained in terms of technological superiority and performance-related advantages. Such price premiums reflect the brand equity of reputable manufacturers.
It is strategically crucial, but famously difficult to quantify. Many experts have developed tools to analyze this asset, but there is no agreed way to measure it. As one of the serial challenges that marketing professionals and academics find with the concept of brand equity, the disconnect between quantitative and qualitative equity values is difficult to reconcile. Quantitative brand equity includes numerical values such as profit margins and market share, but fails to capture qualitative elements such as prestige and associations of interest. Overall, most marketing practitioners take a more qualitative approach to brand equity because of this challenge. In a survey of nearly 200 senior marketing managers, only 26 percent responded that they found the “brand equity” metric very useful.