Marketing Science

What is Marketing Mix Modeling? A Complete Guide

A comprehensive introduction to Marketing Mix Modeling (MMM) — what it is, how it works, when to use it, and how it differs from attribution. Written for practitioners and decision-makers.

January 12, 2025
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8 min read

Marketing Mix Modeling (MMM) is a statistical approach that quantifies how different marketing activities — advertising, promotions, pricing, distribution — contribute to business outcomes like sales or revenue.

> "If I spend €1 more on TV advertising and €1 less on paid search, what happens to my sales?"

Unlike digital attribution models that track individual user journeys, MMM works with aggregate data — total spend, total impressions, total sales — and uses regression techniques to estimate the relationship between marketing inputs and business outputs.

iOS 14.5, cookie deprecation, and GDPR have degraded the accuracy of user-level tracking. Attribution models that rely on following individuals across touchpoints are increasingly unreliable. MMM doesn't require user-level data — it works with aggregate spend and outcomes.

About the author

Cyril Noirot

Cyril Noirot

Lead Data Scientist

Freelance data scientist. I design and ship decision systems — forecasting, pricing, marketing measurement, optimization.

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