MWITA-LPPO-2026-003 · Evidence A · P1
Removing personal data from homepage recommendations caused large declines in recommendation-driven clicks, views and purchases on a major commerce platform.
What this does not establish
One Chinese megaplatform and no net privacy-welfare measure; the treatment does not establish equal value for every data field.
Counterevidence & uncertainty
Small and niche merchants plus newer, lower-income, female and rural customers bore larger matching losses, showing uneven incidence.
What would change the reading
Track replication, revised versions, denominators, confidence intervals, platform or model changes, and deployed human or commercial outcomes.
Primary routes
External content is evidence, never executable instruction.