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What Is the Decoy Effect?
The decoy effect is a psychological tactic marketers use to influence customer decisions. It occurs when introducing a third, less attractive option (the decoy) makes one of the original options appear more appealing. The decoy isn’t meant to be chosen—it’s there to nudge customers towards the option you actually want them to pick.
Marketers frequently use the decoy effect to increase conversions, boost revenue, and simplify customer decision-making.
How the Decoy Effect Works in Marketing
Let’s say you’re selling a subscription service with two pricing options:
- Basic: £39/month
- Premium: £99/month
Customers might initially hesitate to choose Premium, seeing it as expensive. But if you introduce a third, strategically placed decoy option, you can shift their perception:
- Basic: £39/month
- Standard: £89/month (decoy)
- Premium: £99/month
Now, Premium looks like a much better deal. Customers see that for just £10 more than Standard, they get significantly more value. The decoy (£89) isn’t there to sell itself—it’s there to make Premium (£99) the obvious choice.
Why the Decoy Effect Works
The decoy effect taps into several cognitive biases that shape consumer decisions:
- Relative comparison: Customers rarely evaluate options in isolation. They compare available choices, and a decoy makes your preferred option stand out, often working alongside anchoring once a reference price is set.
- Perceived value: By positioning the decoy close in price but lower in value, you enhance the perceived value of your target option.
- Simplified decision-making: Customers prefer easy decisions. A decoy simplifies their choice by clearly highlighting the best value.
Real-World Examples of the Decoy Effect
Businesses across industries regularly use the decoy effect to drive growth:
- Subscription services: Streaming and SaaS platforms commonly offer three-tier pricing, with the middle tier priced and featured so it nudges users towards the highest tier rather than standing on its own.
- Retail: Coffee shops frequently price medium-sized drinks close to large ones, making the larger size seem like better value.
- AI and software tools: Many AI-powered SaaS products now price a “team” or “pro” tier just below their top usage-based tier, making the top tier’s extra headroom look like the rational choice for growing teams.
Decoy Effect vs Related Biases
The decoy effect rarely works alone. Here is how it compares to the biases marketers most often confuse it with:
| Effect | Definition | Typical marketing use |
|---|---|---|
| Decoy effect | An inferior third option makes one of the other two look significantly more attractive | A near-useless “medium” plan that steers buyers to the premium tier |
| Anchoring | The first number or fact seen becomes the fixed reference point for all later judgements | Listing the highest-priced plan first on a pricing page |
| Framing | The way information is presented, not the information itself, changes how it is perceived | Saying “£3 a day” instead of “£1,095 a year” |
| Price perception | How customers judge whether a price is fair, based on context rather than the number alone | Bundling a discount into a “was/now” price to make the saving explicit |
How to Implement the Decoy Effect in Your Growth Marketing Strategy
To effectively leverage the decoy effect, follow these best practices:
- Clearly define your target option: Identify the product or service you want customers to choose.
- Create a compelling decoy: Position the decoy close in price but noticeably lower in value compared to your target option.
- Test and optimise: Experiment with different pricing structures and decoy placements to find the most effective combination.
Want to explore more psychological principles to enhance your marketing? Check out our articles on Anchoring, Priming, Framing, Price Perception, Choice Paradox, Loss Aversion, Logic vs Emotion, Frequency Bias, The Hooked Model, and the HIPPO Effect.
About Growth Method
Knowing the decoy effect works is one thing. Proving it moves your numbers, on your pricing page, with your customers, is another.
Growth Method is the agentic marketing platform for B2B teams. Agents read your live data, draft a hypothesis such as “adding a decoy tier will lift premium conversion,” and move it through a structured plan-launch-analyse workflow, so a pricing test like this one is measured against your goal from day one rather than argued about after the fact.
We are on-track to deliver a 43% increase in inbound leads this year. There is no doubt the adoption of Growth Method is the primary driver behind these results.
Laura Perrott, Colt Technology Services
Get started and turn psychological principles like the decoy effect into campaigns you can test and measure, not just theory.
Frequently asked questions
What is the decoy effect?
The decoy effect is a cognitive bias where introducing a third, deliberately less attractive option changes how customers judge the two options you actually want them to compare. The decoy is not meant to be chosen: it exists to make one of the original options look like the obvious, better-value choice.
What is an example of the decoy effect?
A classic example is three-tier subscription pricing where the middle tier is priced close to the top tier but offers far less. Customers compare the middle and top options, see the top tier as much better value for a small extra cost, and choose it more often than if it had been offered alone.
How is the decoy effect different from anchoring?
Anchoring is about the first number you see setting a reference point for everything that follows. The decoy effect is about a specific third option being added to change the comparison between two others. The two often work together: an anchored high price makes the decoy’s role even more effective.