[TL;DR: Buyers make most purchase decisions using fast, memory-based shortcuts before they ever research options (Kahneman). The brand that wins is the one that comes to mind first in the buying moment (Sharp). And buyers aren't looking for the best option -- they're looking to avoid the worst one (Sutherland). Your marketing strategy needs to account for all three.]

How Buyers Actually Make Decisions (And Why Being Better Is Not Enough)

Most Australian SME owners run their marketing on a flawed assumption: that buyers research carefully, weigh their options, and choose the best product or service available.

That's not what the evidence shows. It's not even close.

Three researchers, working from three very different angles, arrived at the same uncomfortable conclusion: the decision is largely made before the buyer ever contacts you. Your job is not to impress them when they arrive. Your job is to be in their head before that moment.

Here's what the science actually says.

System 1 Has Already Made the Call

In 2002, Daniel Kahneman won the Nobel Prize in Economics for work that fundamentally changed how we understand human decision-making. His landmark framework, detailed in Thinking, Fast and Slow, distinguishes two modes of thinking:

Here is what this means for your marketing. For the majority of B2C and B2B purchases, System 1 has already reached a verdict before System 2 gets involved. A buyer searches Google, scans the results, and within seconds feels a sense of familiarity, trust, or unease about each option. That sensation is System 1 at work.

Kahneman calls this cognitive ease. When something feels familiar, the brain signals "safe." When something feels unfamiliar, the brain signals "proceed with caution." This is not rational. It is evolutionary. Our ancestors needed fast threat assessment, and our brains still run the same circuitry when choosing between a plumber and a scaffolding company.

The practical implication is stark: a brand that feels familiar converts at a higher rate than an unfamiliar brand, even if the unfamiliar brand has better prices, better reviews, and a better service. Familiarity itself is a persuasion mechanism. It works before anyone reads a word of your copy.

The Brand That Comes to Mind First Almost Always Wins

If Kahneman explains the psychological mechanism, Byron Sharp provides the marketing evidence.

Sharp is a professor at the Ehrenberg-Bass Institute at the University of South Australia in Adelaide, and his 2010 book How Brands Grow is arguably the most rigorous marketing science text of the last thirty years. His research, drawn from 40+ years of consumer panel data across 130+ brands in 13+ product categories, challenges almost every assumption small business marketing is built on.

His central concept: mental availability.

Mental availability is not brand awareness. Awareness is binary: you have either heard of a brand or you have not. Mental availability is multidimensional. It describes whether your brand comes to mind specifically when a buyer enters the category and starts thinking about purchasing.

Sharp's research shows that a buyer looking for, say, a local accountant does not run through a comprehensive mental checklist. Their brain retrieves one, maybe two, names from memory. They consider those options. They choose. The accountants who do not come to mind never had a shot at the business.

This has enormous implications for how you think about your marketing spend.

Sharp's analysis of 880 IPA effectiveness award-winning campaigns found that 82% achieved growth through reaching new buyers, not through retention or loyalty strategies. Only 2% succeeded primarily through loyalty. The evidence is not ambiguous: brands grow by being thought of by more people, not by being adored by fewer.

Sharp calls the specific triggers that cause buyers to think about a category Category Entry Points (CEPs). A tradie searching for a supplier might be triggered by a project deadline, a breakdown, a seasonal rush, a conversation with another tradie. Every one of those moments is an entry point. Every brand linked to more of those moments in buyers' minds has more shots at the business.

Consistency compounds this effect. Sharp's research on distinctive brand assets (consistent use of logos, colours, imagery, tone, taglines) shows that these assets allow mental availability to accumulate over time. Every time a business changes its look "to freshen things up," it erases memory deposits that took years to build.

Buyers Are Not Trying to Find the Best Option. They Are Trying to Avoid the Worst.

The third piece of this puzzle comes from Rory Sutherland, Vice Chairman of Ogilvy UK, whose 2019 book Alchemy documents decades of behavioural economics research from the advertising trenches.

Sutherland's key insight: buyers do not optimise. They satisfice.

The term comes from Herbert Simon, but Sutherland applies it with precision to marketing. "Satisficing" means finding an option that is good enough and safe enough, then stopping the search. A business owner hiring a Google Ads agency is not looking for the mathematically optimal agency. They are looking for one they are confident will not be a disaster.

This is a profound shift in how to frame your marketing message.

Most SME marketing is designed to prove superiority: longest experience, most competitive price, highest quality. Sutherland's research suggests that is exactly the wrong frame. Buyers who are satisficing are not asking "who is best?" They are asking "who is safe?"

This connects directly to Kahneman's work on loss aversion. Kahneman and Tversky demonstrated that the pain of a bad outcome is roughly twice as intense as the pleasure of an equivalent good outcome. For a business owner hiring an agency, choosing badly and wasting $2,500 per month feels far worse than the upside of choosing slightly better and getting 15% more leads.

The marketing implication is clear: signals of trustworthiness and risk reduction are worth more than claims of superiority.

A Google review count of 127 tells a prospective buyer that 127 other people took the risk before them. That is risk reduction through social proof. A visible Google Partner badge tells them a third party has assessed and validated the agency. That is risk reduction through authority. A case study showing results for a similar business tells them "someone like you already tried this and it worked." That is risk reduction through similarity.

These signals do not work because they prove you are the best. They work because they reduce the perceived risk of choosing you. Sutherland would call this the difference between a claim and a signal. Claims are cheap. Signals are costly to fake, which is precisely why buyers trust them.

Where Kahneman, Sharp, and Sutherland Agree

These three researchers arrived at their conclusions through entirely different methods, but they converge on the same truth about buyer behaviour.

Being the best is not irrelevant. But it is third in the queue behind being remembered and being trusted.

What This Means for Your Business

Byron Sharp describes Google Search Ads as physical availability, not advertising. They catch buyers at the exact moment of declared intent. But Sharp's research shows that buyers with prior familiarity convert at meaningfully higher rates from the same ads, because cognitive ease is already working in your favour. The ad gets the click; the mental availability gets the conversion.

This means pausing advertising in slow periods is exactly backwards. The periods when enquiries drop are the periods when mental availability is being built or eroded for the next busy season. Staying present when the phone is quiet is not waste. It is investment in the next wave of buyers.

The goal is not to win the rational argument. It is to be the brand that a buyer's System 1 recognises and clears as safe, before their System 2 even wakes up.

FAQ

Why do buyers seem to research heavily before purchasing if System 1 makes the decision quickly?

Research and decision are two different things, and Kahneman's framework explains this precisely. Buyers frequently use research to justify a decision System 1 has already reached, not to reach it from scratch. When someone reads three pages of reviews for a service business, they are often looking for confirmation of an initial gut feeling rather than conducting genuinely open-minded evaluation. Kahneman calls this tendency confirmation bias operating within a System 1 context. The practical implication: your reviews and trust signals still matter enormously, but their primary job is to give System 1's preference a rational justification, not to create that preference from nothing. This is why a business with strong brand recall and average reviews regularly outperforms a business with no recognition and exceptional reviews. The unfamiliar option faces a credibility deficit that no number of five-star ratings can fully overcome.

Does this mean product features and benefits are irrelevant in marketing?

Features and benefits still matter, but at a different stage of the decision process. For buyers who are already familiar with your brand, detailed information helps System 2 validate what System 1 has already decided. For buyers who have never encountered your brand, no amount of feature detail overcomes the friction of unfamiliarity. Think of it this way: features close the deal, familiarity gets you into consideration. Sharp's research suggests most SME marketing over-invests in the closing phase (detailed copy, offers, landing page optimisation) and under-invests in the reach phase (broad awareness, consistent brand presence, linkage to multiple Category Entry Points). Both matter. The balance is usually wrong, weighted heavily toward conversion and almost nothing toward the mental availability that makes conversion possible in the first place.

If mental availability matters so much, why do Google Ads work for brands nobody has heard of?

Google Search Ads work because they provide physical availability at the exact moment of declared intent. A buyer who is actively searching "commercial scaffolding Adelaide" has stated their need, and relevant ads will get consideration regardless of prior familiarity. But Sharp's research shows that for the same ad spend, businesses with higher mental availability earn better click-through rates, higher conversion rates, and lower cost per lead over time. Familiarity reduces cognitive friction at every stage of the funnel. The two strategies reinforce each other: Google Ads catches in-market buyers; brand-building activity ensures more of those buyers recognise your name and apply cognitive ease when they see your result, translating into better Quality Scores, stronger performance, and compounding returns as the brand grows.

How does Rory Sutherland's satisficing model apply to B2B purchasing specifically?

In B2B, the risk calculus that drives satisficing is often more intense than in B2C. A B2B buyer who chooses badly does not just suffer personally. They answer to a team, a manager, or a board. The professional and reputational downside of a bad vendor choice amplifies loss aversion considerably. This means the risk reduction signals that Sutherland identifies carry even more weight in B2B contexts: case studies from similar businesses, recognisable client logos, verifiable credentials, and direct referrals from trusted peers. Sutherland's framework also explains why the cheapest option rarely wins in B2B. A suspiciously low price triggers loss aversion rather than appeal. "If it is this cheap, what are we not getting?" is a System 1 response that no rational price comparison can easily overcome. In B2B, price signals risk. Premium pricing, positioned correctly, signals confidence.

Further Reading

• Thinking, Fast and Slow by Daniel Kahneman - The foundational text on System 1 and 2 thinking, cognitive biases, and loss aversion
• How Brands Grow by Byron Sharp - Forty years of brand growth research that challenges marketing conventional wisdom with hard data
• Alchemy by Rory Sutherland - Why the psychologically correct solution is often the opposite of the logically obvious one
• Ehrenberg-Bass Institute: Mental Availability Research - The source institute for Byron Sharp's ongoing brand growth research
• Sam Tomlinson: The 10 Marketing Commandments - Practical application of timeless marketing principles, including "clear crushes clever"