In short: The 22 Immutable Laws of Marketing by Ries & Trout (1993) are anecdotal, non-scientific propositions: survivorship bias, absence of counterfactuals, internal contradictions. How Brands Grow by Byron Sharp (2010) and the Ehrenberg-Bass research represent the evidence-based alternative built on sixty years of replicated data. On positioning, differentiation, focus and loyalty the empirical evidence contradicts Ries systematically.
- The Ries & Trout laws are speculative propositions, not results of replicated research — Ehrenberg-Bass Institute
- Growth comes from penetration (light buyers), not from loyalty or niche positioning — Sharp (2010)
- The Double Jeopardy Law is replicated in 60+ years of peer-reviewed studies; Ries’s “Law of Leadership” is not — Corsi, Rungie & Casini (2017)
In 2026 the books by Al Ries and Jack Trout are still among the bestsellers in Italian and international business schools. Positioning (1981) and The 22 Immutable Laws of Marketing (1993) have shaped two generations of marketers. Yet an entire stream of academic research — led by the Ehrenberg-Bass Institute for Marketing Science and synthesised by Byron Sharp in How Brands Grow (2010) — shows that most of those “laws” do not hold up against empirical evidence. This is not an ideological demolition: it is a point-by-point comparison between two paradigms, with peer-reviewed sources and verifiable numbers.
Frequently Asked Questions
Who is right: Al Ries or Byron Sharp?
Both partially, but the empirical evidence favours Sharp and the Ehrenberg-Bass Institute on most of the contested points. Ries & Trout were right in placing mental positioning at the centre of marketing in the 1970s and 1980s, but they formulated their “laws” as absolute principles without any replicable empirical basis. Sharp, by contrast, synthesises sixty years of peer-reviewed research based on Nielsen, Kantar and TNS panel data. On penetration > loyalty, distinctiveness > differentiation, mental availability > exclusive positioning, and broad reach > niche focus, the evidence is clear and consistent.
What are the 22 Immutable Laws of Marketing?
The 22 Immutable Laws of Marketing is a book published by Al Ries and Jack Trout in 1993 that lists 22 principles presented as universal laws of marketing. They include the Law of Leadership (“it’s better to be first than it is to be better”), the Law of the Category (“if you can’t be first in a category, set up a new category you can be first in”), the Law of Focus (“a brand should own a word in the mind”) and 19 others. The book has sold millions of copies, but the authors never published peer-reviewed studies to support the laws, which remain anecdotal propositions built on cases chosen ex post.
What is the Ehrenberg-Bass Institute?
The Ehrenberg-Bass Institute for Marketing Science is an empirical research centre founded at the University of South Australia, which since the 1960s has studied real consumer behaviour through sales panel data. It is funded by corporate sponsors such as Coca-Cola, Mars, Unilever and Procter & Gamble. Its findings — Double Jeopardy Law, Duplication of Purchase, Natural Monopoly, the importance of light buyers — are replicated in hundreds of peer-reviewed studies and constitute the most solid empirical corpus on brand growth.
Why is it said that Ries did not produce science?
Because his “laws” suffer from three methodological problems: survivorship bias (only successful brands that confirm the thesis are cited, while those that failed following the same principles are ignored), absence of counterfactual (what would have happened without applying the law is never tested) and internal contradictions (the Law of Focus contradicts the Law of Line Extension, the Law of Division contradicts the Law of Category). A science requires falsifiable hypotheses, replication and controls. The 22 laws have none of them.
Does Byron Sharp say that positioning is useless?
No. Sharp redefines what “positioning” means. He does not deny that a brand must occupy mental space: he argues that this space is built through mental availability (breadth and freshness of the memory associations between brand and usage situations) and distinctive brand assets (colours, logos, sounds, characters that make the brand instantly recognisable), not through a “single word” or a differentiating niche. Positioning exists, but it does not work the way Ries describes it.
Which approach is better for an Italian SME?
An evidence-based approach drawn from Sharp and Ehrenberg-Bass: invest in broad reach to reach light buyers, build distinctive brand assets with obsessive consistency, avoid hyper-targeting, respect Binet & Field’s Share-of-Voice > Share-of-Market rule. The Ries approach — “become first in a niche” — works occasionally for early-stage startups but fails in the vast majority of cases (survivorship bias): the protected niche does not exist in real panel data.
The methodological problem of the 22 Laws
Before comparing the two paradigms, it is necessary to explain why the 22 Immutable Laws are not science in a technical sense. Karl Popper’s demarcation criterion requires a theory to be falsifiable: it must be capable of being disproved by data. Ries’s laws are not, for three structural reasons.
Survivorship bias. The book cites Coca-Cola as proof of the Law of Leadership, Xerox as proof of the Law of Category, Federal Express as proof of the Law of Focus. But for every Coca-Cola there is a Crystal Pepsi, a Tab, a New Coke; for every Xerox there are dozens of categories created and then killed; for every Federal Express there are failed “focus” couriers. If you only select winners, any theory works retrospectively. Daniel Kahneman, in Thinking, Fast and Slow (2011), defines this pattern as the “narrative illusion” typical of business books.
Internal contradictions. The Law of Line Extension (no. 12) says that extending a brand across multiple categories is a mistake. The Law of Sacrifice (no. 17) repeats the same concept. But the Law of Division (no. 11) says that categories divide over time, creating new opportunities. If a brand had to wait for division before extending, how many concrete decisions could it make? Andrew Ehrenberg noted as early as the 1990s that successful line extensions (Apple, Samsung, Amazon, Virgin) systematically contradict the Law of Focus, yet no reformulation of the book has ever addressed the critique.
Absence of counterfactual. To prove that “it is better to be first than to be better”, one would need to show that, with equal resources, first movers systematically beat better players. But Golder and Tellis, in a study published in the Journal of Marketing Research (1993), analysed 500 brands across 50 categories: the failure rate of “first movers” is 47%, and many current market leaders are fast followers, not pioneers. The myth of first-mover advantage does not hold up against the data.
Positioning vs Mental Availability
Ries’s central thesis is that every brand must “own a word in the consumer’s mind”: Volvo = safety, BMW = driving, Ferrari = prestige. The brand is built by focusing on a single attribute and repeating it obsessively until the consumer makes the automatic association.
Jenni Romaniuk and Byron Sharp, in How Brands Grow Part 2 (Oxford University Press, 2022), propose a different model: the brand should not own a word, but be mentally available in as many “category entry points” as possible. Think of when you buy a soft drink: the consumption moments are dozens (lunch at work, dinner with friends, cinema, sport, summer heat, study break). A brand grows by occupying as many of these entry points as possible, not by concentrating on a single one.
Peer-reviewed evidence favours the Sharp-Romaniuk model. Romaniuk & Sharp, in Marketing Theory (2004), document that leading brands have more memory associations across more usage categories, not fewer. Small brands have fewer associations, not a single strong association. The “word in the mind” is an effect of size, not a cause of growth: when a brand is huge, everyone remembers it even with a synthetic word. Not the other way around.
Differentiation vs Distinctiveness
Ries & Trout argue that marketing is a “war of perceptions” where the brand must differentiate itself by telling why it is different from competitors. USP (Unique Selling Proposition), value proposition, brand essence: the entire literature derived from Rosser Reeves and Ries puts differentiation at the centre.
Sharp flips the perspective with a crucial distinction: differentiation vs distinctiveness. Differentiation means being objectively different (quality, features, price, benefit). Distinctiveness means being immediately recognisable, regardless of what is being sold. Romaniuk, in Building Distinctive Brand Assets (Oxford, 2018), shows that consumers choose brands on the basis of at-a-glance recognisability — colour, logo, font, jingle, character — not on the basis of a rational analysis of differences.
This is why Coca-Cola’s red + script logo, McDonald’s golden M, the Nike swoosh, the red-black Netflix wordmark work: they are not differentiating (there are other colas, other fast-food chains, other shoes, other streaming services), they are distinctive. Consumers do not compare features: they recognise patterns. A study by Tanusondjaja, Trinh and Romaniuk (International Journal of Market Research, 2016) on global CPG brands shows that leading brands are rarely differentiated in a technical sense, but almost always strongly distinctive.
Focus / Niche vs Penetration
Ries’s Law of Focus (no. 5) and Law of Sacrifice (no. 17) say the same thing: it is better to dominate a niche than to be mediocre in many. “If you try to be all things to all people,” they write, “you will end up being nothing to no one.” The corollary: SMEs should find a defensible niche and ignore the mass market.
The Ehrenberg-Bass evidence contradicts this thesis with consistent panel data. The Double Jeopardy Law, formalised by Ehrenberg, Goodhardt and Barwise (1990) and replicated in over fifty years of studies, shows that brands with smaller market share do not only have fewer buyers: they also have less loyalty per buyer. The “small but fiercely loyal” brand does not exist: it is statistically almost impossible.
Worse still: the Natural Monopoly Law shows that large brands attract a disproportionate share of the category’s light buyers. Ignoring the mass market means handing growth to larger competitors. The “defensible niche” strategy works in rare cases (extreme luxury, ultra-high-margin specialised B2B), but it is not the general rule — it is the exception. Brands that grow widen their base, they do not narrow it. We dive deeper into the mechanism in our guide on light buyers and brand growth in 2026.
Loyalty vs Light Buyers
Ries’s thinking inherits from Peter Drucker and relationship marketing the idea that loyal customers are the most valuable strategic asset. Cultivate loyalty, reward top customers, invest in CRM and retention: the post-Ries literature turned this into dogma.
The Ehrenberg-Bass Institute has demonstrated that exclusive loyalty is a statistical exception, not the norm. The majority of consumers hold a “repertoire” of 3-8 brands per category from which they choose based on availability at the moment. Light buyers (70-80% of the customer base) buy the brand once or a few times a year, and they are the ones driving growth: when a brand grows, it grows because more people buy it at least once, not because existing customers buy twice as much.
Byron Sharp sums up the operational consequence with a sentence that dismantles half a century of relationship marketing: “Brands grow by acquiring more buyers, especially light buyers”. Investing massively in loyalty programmes and retention has diminishing returns; the growth reserve lies in the consumers who barely remember your brand. It is the same argument developed in our deep dive on the How Brands Grow summary by Byron Sharp.
Comparison table: 22 Immutable Laws vs empirical evidence
What remains valid of Al Ries in 2026
It would be wrong to dismiss Ries as a charlatan. Three genuine contributions survive the empirical critique, even if they need to be reread through Sharp’s categories.
First: marketing is primarily a battle for attention, not for the product. Ries & Trout anticipated the concept of the “attention economy” by decades. Today Byron Sharp reiterates it when he speaks of mental availability: it doesn’t matter how good the product is if the consumer doesn’t think of it at the moment of choice. On this, the two paradigms converge.
Second: communicative simplification pays off. Ries argued that complex messages don’t work, that the consumer has no mental bandwidth for rational analyses. On this, the evidence proves him right: Nielsen Norman Group and Flesch readability research document that immediate comprehensibility increases memorability. The difference is that Sharp suggests achieving this simplicity with distinctive assets (colours, sounds, characters), not with a single slogan-word.
Third: positioning as a cognitive category exists. Sharp does not deny that brands occupy mental spaces; he denies that they do so by monopolising a word. But the general principle — that the brand lives in the mind, not in the product — remains a powerful insight that Ries placed at the centre of the discipline long before consumer neuroscience. As discussed in our analysis of buyer personas as pseudoscience, classical targeting has the same epistemological problem as Ries: powerful intuitions without replicable proof.
Do you need to build an evidence-based brand?
Deep Marketing supports SMEs and Italian brands in building distinctive identities grounded in Ehrenberg-Bass empirical evidence, not in anecdotal slogans. Request a brand audit or explore our branding and visual identity consulting to design distinctive brand assets and a reach strategy aligned with sixty years of scientific research.
Sources and References
- Ries, A. & Trout, J. — The 22 Immutable Laws of Marketing, HarperBusiness (1993)
- Sharp, B. — How Brands Grow: What Marketers Don’t Know, Oxford University Press (2010)
- Romaniuk, J. & Sharp, B. — How Brands Grow Part 2 Revised Edition, Oxford University Press (2022)
- Romaniuk, J. — Building Distinctive Brand Assets, Oxford University Press (2018)
- Ehrenberg-Bass Institute for Marketing Science — University of South Australia
- Golder, P. & Tellis, G. — Pioneer Advantage: Marketing Logic or Marketing Legend?, Journal of Marketing Research (1993)
- Corsi, Rungie & Casini — Double Jeopardy 50 Years On, Australasian Marketing Journal (2017)
- Romaniuk, J. & Sharp, B. — Brand Salience and Customer Defection, Marketing Theory (2004)
- IPA — Les Binet & Peter Field, The Long and the Short of It
- Bain & Company — The Biggest Contributor to Brand Growth (2024)
- Tanusondjaja, Trinh & Romaniuk — Exploring Brand User Profiles, International Journal of Market Research (2016)
