Latest / Marketing Psychology with Fexingo: Behavioral Triggers, Persuasion, and Consumer Behavior / How the Consistency Principle Keeps You Loyal to Brands
Transcript
- Lucas: There's a coffee shop near my apartment — not a chain, just a local spot — and they use a paper punch card. Buy nine coffees, get the tenth free. It's not a particularly clever program. But here's the thing: I've walked past three other coffee shops that are closer, cheaper, and honestly, make a better latte. And I still go to the one with the punch card. Luna: Because you're nine-tenths of the way to a free coffee. That's the pull. Lucas: Exactly. But it's not really about the free coffee. The punch card is activating a deep psychological principle: consistency. Once we've made a small commitment — buying that first coffee, getting that first stamp — we want our future behavior to be consistent with that initial choice. Luna: It's the same reason I still have a gym membership I use twice a month. I signed up, I paid, so I must be someone who goes to the gym. Lucas: Right. And that's the Consistency Principle in a nutshell. Psychologists Robert Cialdini made it famous in his book Influence. The idea is that people have a deep desire to be, and to appear, consistent. Once we take a stand or make a choice, we encounter personal and interpersonal pressure to behave in ways that are aligned with that earlier commitment. Luna: And marketers have been using this for decades. The classic example is the foot-in-the-door technique. Get someone to agree to a small request, and they're much more likely to agree to a larger one later. Lucas: Exactly. There's a famous 1966 study by Jonathan Freedman and Scott Fraser. They went door to door and asked homeowners if they would put a small sign in their window that said 'Be a safe driver.' Almost everyone agreed. Two weeks later, a different researcher came by and asked if they could put a large, ugly billboard in their front yard that said 'Drive Carefully.' Seventy-six percent of the people who had agreed to the small sign also agreed to the billboard. In a control group that was only asked about the billboard, only seventeen percent agreed. Luna: That's a massive jump. And it's not because they suddenly loved the billboard — it's because they had already committed to being a 'safe driving supporter.' Now, refusing the larger request would feel inconsistent with that identity. Lucas: And that's the mechanism: we adjust our self-image to fit our actions. Once I start going to that coffee shop regularly, I start thinking of myself as a regular. And then skipping it feels like I'm betraying that identity. Luna: Which is also why Apple's ecosystem is so sticky. You buy an iPhone — that's a big commitment. But then you start using iMessage, iCloud, Apple Music. Each small step locks you in further. Switching to Android would mean losing all that consistency. It feels like a betrayal of your past self. Lucas: Apple is a masterclass in the Consistency Principle. They don't just sell you a phone. They sell you an identity. And once you've bought in, every additional service — Apple Pay, AirPods, Apple Watch — is a smaller commitment that reinforces the larger one. It's the opposite of the foot-in-the-door: it's the 'door-in-the-face' effect, but consistency is the engine in both directions. Luna: And to bring it back to the coffee shop — the punch card works because it creates an artificial commitment. The first stamp is trivial. But by the fifth stamp, you've already invested. The ninth stamp? You're not leaving now. Lucas: There's a brilliant study from 2010 by Joseph Nunes and Xavier Dreze. They looked at a car wash loyalty program. Customers were given a card that required eight stamps for a free wash. One group got a blank card with eight slots. Another group got a card that already had two stamps pre-filled and required ten stamps total. So both required eight purchases for the reward. But the group with the head start — the two stamps already there — completed the card at a significantly higher rate. The reason? They felt like they had already made progress. The commitment was already begun. Luna: So it's not just about consistency. It's about the illusion of progress. You're not starting from zero — you're already on a path. Lucas: And once you're on that path, inconsistency feels bad. There's a term for that discomfort: cognitive dissonance. Leon Festinger's theory from the 1950s says that when our actions don't match our beliefs, we feel tension. And we'll change our beliefs to match our actions rather than the other way around. Luna: So if I buy an expensive pair of shoes that I can't really afford, I'll convince myself they're worth it because they're high quality, they'll last, I deserve them. I won't admit I made a mistake. Lucas: Exactly. And smart marketers lean into that. They get you to make a public commitment — like a social media post, a review, a referral. Once it's public, the pressure to stay consistent is even stronger. You've not only told yourself you're a customer — you've told your friends. Luna: I saw a brand recently that asks customers to post a photo with their product and tag a friend. It's a tiny commitment. But now that person has publicly associated themselves with the brand. They're more likely to buy again. Lucas: Yeah. And that's where I want to step back for a second, because this show is entirely ad-free, and it stays that way because of listeners who chip in a couple of dollars a month. If these marketing conversations have sparked something you've actually used — a concept you tried at work, a tactic you spotted in the wild — that small support genuinely makes the difference. Luna: It's like the first stamp on the punch card. A little commitment that keeps the whole thing going. Lucas: Exactly. You can find it at buy me a coffee dot com slash fexingo. And thank you to everyone who already has. Okay — back to consistency. Lucas: So we've talked about the positive side — how brands use consistency to build loyalty. But there's a darker application too. It's called the 'escalation of commitment' or the 'slippery slope.' Luna: This is how you end up with a timeshare. Or a subscription you forgot about but can't cancel because you've already paid for the year. Lucas: Exactly. And it's why free trials are so effective. You sign up for a thirty-day free trial of a streaming service. You put in your credit card info — that's a commitment. After thirty days, you're charged. But you've already invested time setting up your profile, building a watchlist. Canceling now feels like wasting that effort. So you stay. And then you stay another month. And another. Luna: The key is that the commitment is incremental. Each step is small enough that it doesn't trigger a red flag. But cumulatively, it's huge. Lucas: And the worst part? Once you've escalated, it's hard to back out without feeling like a fool. That's why some subscription services make cancellation intentionally difficult. They're banking on your desire to be consistent with your past decision. Luna: So how do we defend against it? How do we know when consistency is helping us versus trapping us? Lucas: The best defense is to pause and ask: 'If I were making this decision for the first time right now, with no past commitments, would I still choose this?' That's a question that breaks the spell of consistency. Luna: That's a hard question to ask yourself honestly. Especially when you've already invested time, money, or identity. Lucas: It is. But it's the only way to escape the trap. And for marketers, the lesson is different: use consistency ethically. Build loyalty by helping customers make genuine commitments that improve their lives. Don't use it to lock people into bad decisions. Luna: The coffee shop punch card is a good example of ethical use. It rewards repeat behavior without tricking anyone. The customer knows exactly what they're getting. Lucas: Right. And there's research showing that customers who earn rewards through consistent behavior actually value the brand more. It's not just about retention — it's about relationship. Luna: One thing I wonder: does the Consistency Principle work differently in different cultures? Because I know that in some cultures, collectivism might override personal consistency. Lucas: That's a great question. Cialdini's research was mostly in individualistic Western cultures. There is evidence that in more collectivist societies, consistency with group norms can be stronger than consistency with personal commitments. But the principle still holds — it's just the reference point that shifts. Instead of 'I said I would,' it's 'We said we would.' Luna: So a brand might use group commitments — like a team challenge or a community goal — to activate consistency in those contexts. Lucas: Exactly. And that's a good reminder: the most effective marketing adapts psychological principles to the specific audience. Consistency is universal, but its triggers are local. Luna: So next time I see a punch card, I'll know what's happening. But I'll probably still use it. Lucas: Oh, me too. The trick is not to fight the principle — it's to be aware of it. Use it when it serves you, and recognize when it's being used on you. That's the whole goal of this show.