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By Lenny Rachitsky · lennysnewsletter.com · @lennysan on X · YouTube · LinkedIn
Lenny Rachitsky explains why marketplaces fail, drawing on dozens of failed examples. He argues the core causes mirror any startup: lacking product-market fit on demand or supply, poor liquidity, weak unit economics, and scaling faster than quality allows. He groups failures into five reasons, plus several less common ones.
Subscriber post — summary only01Key takeaways
- Marketplaces must find product-market fit twice, once for supply and once for demand.
- Demand-side PMF requires being much cheaper, much better, or offering a much better experience.
- Supply stays only if it gains new revenue or incremental income from the platform.
- Liquidity depends on reliably and quickly matching supply with demand, often starting with a narrow focus.
- Unit economics and scaling too fast can kill marketplaces even when demand exists.
02Frameworks mentioned
Summary and takeaways written by PM Atlas; quotes are short excerpts. © the original author.