The Double Jeopardy law states that brands with smaller market share suffer doubly: they have fewer buyers, and those buyers buy less often. Part 2 confirms this law holds true for:
: Romaniuk introduces frameworks for identifying and protecting "Distinctive Brand Assets" (colors, logos, characters, and fonts) that help consumers identify a brand without needing to see the name. Targeting the Whole Market
This law dictates that brands with less market share have far fewer buyers, and these buyers are slightly less loyal.
In any given product category, smaller brands suffer twice. First, they have a much lower market penetration (fewer buyers). Second, their remaining buyers purchase the brand slightly less often and are slightly less loyal.
Maya watched the numbers rise and noticed something the book’s second half had whispered in theory and now proved in practice: mental availability mattered as much as physical availability. Customers didn’t need to love Ember deeply—they only needed to remember it when the moment of need arrived. That faint recognition, multiplied across millions of small moments, built growth.
Consumers do not think of brands in isolation. They think of brands when triggered by . CEPs are the internal and external cues that buyers use to navigate a purchase (e.g., "I need a quick lunch," "Something to keep me awake," "A gift for a colleague"). Growth requires a brand to link itself to multiple CEPs.
Mental availability is the propensity for a brand to be thought of in buying situations—it’s about being famous enough to be remembered.
If you want to delve deeper into the specific statistical models, charts, and case studies featured in the book, let me know if you would like to look into , expert commentary , or framework worksheets based on these principles. Share public link
The book reinforces that marketing is a science governed by empirical laws, not a creative discipline driven by gut feeling. It dismantles traditional marketing myths regarding deep brand loyalty, highly targeted niches, and the necessity of meaningful brand differentiation. Key Concept: Mental and Physical Availability
Being physically present where consumers look for the category.
The Evidence-Based Marketing Revolution Continues Byron Sharp’s groundbreaking book How Brands Grow completely disrupted the marketing world by challenging conventional wisdom with empirical data. In How Brands Grow Part 2 , co-authored with Jenni Romaniuk, the Ehrenberg-Bass Institute extends these evidence-based principles to emerging markets, service industries, luxury sectors, and digital spaces.
