Smallest effect worth shipping Articles — Atticus Li

Atticus Li

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Smallest effect worth shipping

Articles exploring smallest effect worth shipping through the lens of behavioral science and experimentation. Practical frameworks for growth leaders who measure in revenue, not vanity metrics.

1 article

smallest effect worth shipping Apr 16, 2025 2 min read

Start With the Money: Defining the Smallest Effect Worth Shipping

How to define a smallest effect worth shipping (SEWS) using financial impact, a tight measurement window, and disciplined experiment design.

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Product team reviewing experiment metrics and financial impact thresholds on a dashboard

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