Amazon Ads Multi-Touch Attribution

Randall Lewis, Florian Zettelmeyer, Brett R. Gordon, Cristobal Garib, Johannes Hermle, Mike Perry, Henrique Romero and German Schnaidt

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Abstract: Amazon's new Multi-Touch Attribution (MTA) solution allows advertisers to measure how each touchpoint across the marketing funnel contributes to a conversion. This gives advertisers a more comprehensive view of their Amazon Ads performance across objectives when multiple ads influence shopping decisions. Amazon MTA uses a combination of randomized controlled trials (RCTs) and machine learning (ML) models to allocate credit for Amazon conversions across Amazon Ads touchpoints in proportion to their value, i.e., their likely contribution to shopping decisions. ML models trained purely on observational data are easy to scale and can yield precise predictions, but the models might produce biased estimates of ad effects. RCTs yield unbiased ad effects but can be noisy. Our MTA methodology combines experiments, ML models, and Amazon's shopping signals in a thoughtful manner to inform attribution credit allocation.

Date: 2025-08
New Economics Papers: this item is included in nep-exp and nep-ind
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