What's the key thing to know about decoy pricing?

The asymmetric dominance effect. Add a clearly inferior third option to a two-product choice set, and consumer preference shifts toward the option that dominates the new entrant. The effect was first formally documented in early-1980s consumer research and has been replicated across thousands of experiments since, making it one of the most stable findings in choice psychology and a direct violation of the regularity assumption of classical choice theory.

How does decoy pricing play out in CPG and FMCG?

The Economist subscription case is the canonical replication. When subscribers were offered a web-only tier at one price, a print-only tier at a higher price, and a print-plus-web bundle at that same higher price, 84 percent picked the bundle. Remove the print-only middle option (the dominated decoy) and 68 percent picked web-only instead. The dominated option pulled the target.

What's the practical takeaway on decoy pricing for pricing teams?

The pack-architecture analogue is everywhere. The Best tier in a Good-Better-Best ladder makes the Better tier look like a deal. A 750ml bottle priced just below a 1L bottle pulls volume into the 1L. A multi-pack format priced worse per gram than a large single pack pulls volume into the large pack. The decoy does not need to sell. It needs to be visible at the moment of choice.

Can you walk through a worked example of decoy pricing?

A coffee brand used a decoy to drive sales of the product it actually wanted to grow. Scenario: a premium blend that felt too dear Standard Blend 200g at $4.99: 62% share Premium Blend 200g at $7.99: 38% share Premium was the higher-margin target, but $7.99 read as expensive sitting next to $4.99. The decoy A Premium Blend 150g at $6.99: same coffee, but worse value per gram than the 200g.

Decoy Pricing and Asymmetric Dominance: How a Third Option Reshapes the First Choice

Adding a dominated option to make the target option look more attractive by comparison

Updated 3 May 2026From the Price Pack Architecture module, lesson 6: Good-Better-Best Strategy

TL;DR

Decoy pricing is the deliberate use of an asymmetrically dominated option, clearly worse than the target on at least one dimension while comparable on others, to shift consumer preference toward the target, and it is one of the most replicated effects in choice psychology.

The asymmetric dominance effect. Add a clearly inferior third option to a two-product choice set, and consumer preference shifts toward the option that dominates the new entrant. The effect was first formally documented in early-1980s consumer research and has been replicated across thousands of experiments since, making it one of the most stable findings in choice psychology and a direct violation of the regularity assumption of classical choice theory.
The Economist subscription case is the canonical replication. When subscribers were offered a web-only tier at one price, a print-only tier at a higher price, and a print-plus-web bundle at that same higher price, 84 percent picked the bundle. Remove the print-only middle option (the dominated decoy) and 68 percent picked web-only instead. The dominated option pulled the target.
The pack-architecture analogue is everywhere. The Best tier in a Good-Better-Best ladder makes the Better tier look like a deal. A 750ml bottle priced just below a 1L bottle pulls volume into the 1L. A multi-pack format priced worse per gram than a large single pack pulls volume into the large pack. The decoy does not need to sell. It needs to be visible at the moment of choice.

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What it is

The Asymmetric Dominance Effect

Decoy pricing applies the asymmetric dominance effect: when a shopper is weighing two options and you add a third that is clearly worse than one of them but not the other, preference shifts toward the option that dominates the decoy. The question it raises: can a product almost nobody buys still earn its place on the shelf?

The classic demonstration

A classic retail example makes the point. A shop sold a bread maker at $279, and few people bought it. The shop then added a second, fancier model at $429. The $429 machine barely sold, but sales of the original $279 model roughly doubled. The expensive model was never meant to sell. It reframed $279 from "expensive gadget" to "the sensible one," and that reframing did the work.

How the decoy shows up in GBB

In Good-Better-Best (GBB), the decoy dynamic runs by itself. The Best tier acts as a soft decoy for Better, not because Best is inferior, but because its high price makes Better's quality-for-money look exceptional by comparison.

Deliberate decoys go a step further. Some brands add a product designed to be dominated by the one they actually want to sell:

price decoy: same quality as Better, higher price
feature decoy: same price as Better, fewer features
value decoy: slightly bigger than Better, at a disproportionately higher price

0 sales needed

a decoy earns its place by being seen at the moment of choice, not by selling

Formula & calculation

Decoy Design Principles

A decoy works only if it is genuinely dominated by the product you want to sell on at least one dimension, while looking comparable on another.

The dominance test

Target beats decoy when Target price <= Decoy price AND Target quality >= Decoy quality

the clean-dominance case

Or, more loosely, when the target offers the better value ratio:

Value ratio = Quality / Price, and the target's must beat the decoy's

the value-dominance case

Did the decoy pay off

Decoy effectiveness = volume shifted to target / volume the decoy took

above 1.0x means the decoy moved more than it kept

A pure decoy that barely sells can reach 3 to 5x. One that also attracts real buyers runs lower, as the case below shows.

Worked example

Without a decoy: Product A at $3.49 holds 45% share, Product B at $5.99 holds 55%
Add Product C at $5.49 (same features as A, worse value): shares move to A 52%, B 42%, C 6%

So A gained 7 points while the decoy C took 6 points:

Decoy effectiveness = 7 / 6 = 1.17x

1.17x

the decoy moved more volume to the target than it kept for itself

A modest result, but net-positive: the decoy pulled more to the target than it captured.

Worked example

Coffee, Decoy Pricing at Shelf

A coffee brand used a decoy to drive sales of the product it actually wanted to grow.

Scenario: a premium blend that felt too dear

Standard Blend 200g at $4.99: 62% share
Premium Blend 200g at $7.99: 38% share

Premium was the higher-margin target, but $7.99 read as expensive sitting next to $4.99.

The decoy

A Premium Blend 150g at $6.99: same coffee, but worse value per gram than the 200g.

Decoy value: $6.99 / 150g = $4.66 per 100g
Premium 200g value: $7.99 / 200g = $4.00 per 100g

The smaller pack is dominated by the 200g on every rational measure.

What happened to share

Standard 200g: 42% (down 20 points)
Premium 200g: 44% (up 6 points)
Premium 150g decoy: 14%

The revenue math

Per 100 units sold, premium revenue (the 200g plus the 150g decoy, both premium) moved like this:

Before: 38 x $7.99 = $303.62
After: 44 x $7.99 + 14 x $6.99 = $351.56 + $97.86 = $449.42

+48% premium revenue

from a decoy that also turned into a real product

The decoy took 14% rather than the sliver a pure decoy keeps, because some shoppers genuinely wanted a smaller premium pack. It anchored Premium 200g and quietly became a legitimate portion-control offer at a 48% gross margin.

Practitioner insight

Decoy Pricing in FMCG Practice

Deliberate decoys are more common on shelf than most teams admit. Five recognisable shapes:

The stepping-stone decoy

A pack size sitting between Good and Better at slightly worse value per unit than Better. Shoppers compare the two and Better wins. Common in drinks, where a 750ml bottle at $3.49 makes the 1-litre at $3.99 look like the obvious buy.

The phantom decoy

A product listed in the retailer's system and shown on shelf but rarely in stock. The price tag is visible and anchors perception, but shoppers cannot actually buy it. Ethically questionable, and occasionally observed.

The format decoy

A multipack, say 3x100g at $4.99, placed next to a single larger pack of 400g at $3.99. The multipack is worse value per gram, but its presence makes the big pack look like a deal. It still sells to shoppers who value portion control.

The seasonal decoy

A limited-edition premium product that anchors the range during peak periods (Christmas, Easter), lifting the mix upward for the season with no permanent listing.

The line you do not cross

The decoy must still be a real product that serves the shoppers who buy it. A deliberate rip-off undermines trust and brand reputation, and the damage outlasts the mix gain.

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