Lyft Engineering·Mar 25, 2026·8 min read·Iraklikhorguani55Beyond A/B Testing: Using Surrogacy and Region-Splits to Measure Long-Term Effects in MarketplacesRead original on eng.lyft.comScore breakdownTechnical depth51Practical value45Originality100Writing quality100Source reputation83Recency0External engagement0On-site engagement0NayaRead shows a summary and links to the original article. The full article is hosted on eng.lyft.com.