By Lenny Rachitsky · lennysnewsletter.com · @lennysan on X · YouTube · LinkedIn
This second installment of a marketplace growth series tackles the chicken-and-egg problem: once a marketplace is constrained by geography or category, founders must decide whether to concentrate resources on supply or demand. Drawing on interviews with 17 marketplace companies, the author finds that 14 of 17 focused on supply first, since supply often drove its own demand or generated strong word-of-mouth. The remaining cases, such as Rover, TaskRabbit, and Zillow, found supply easy to get and shifted resources to demand. The piece also notes that Patreon discovered it was not truly a marketplace, which helped it refocus. The lesson is that the choice of which side to prioritize should follow evidence about where the real constraint lies.
01Key takeaways
- Most marketplaces should concentrate early resources on supply, since supply often drives demand on its own.
- Check whether supply is truly scarce before committing to it; if suppliers join easily, shift focus to demand.
- Supply that is flexible and offers meaningful income tends to attract itself.
- Creating scaled supply early can matter more than brand or product polish, though that tradeoff is debated.
- Be willing to discover you are not a marketplace and adjust your vision and metrics accordingly.
02Key sections
- Supply-first is the dominant pattern
- Most successful marketplaces, 14 of 17 interviewed, concentrated early resources on growing supply. Companies such as Eventbrite, Lyft, DoorDash, and Etsy found that supply created its own demand.
- When demand becomes the constraint
- In three cases supply was easy to acquire because the offer was flexible and valuable to suppliers, or because the supply was public data. Demand then became the bottleneck.
- Admitting you aren't a marketplace
- Patreon initially thought of itself as a marketplace but realized its product-market fit lay elsewhere. Recognizing this let it pivot toward an apps and developer platform.
- Looking ahead to growth levers
- The series will next cover how marketplaces built initial supply and demand, including common growth levers and tactics.
03From the post
““When we were starting out, we looked at the biggest marketplace companies – eBay, Craigslist, Amazon. There were two things in common: (1) They had all the supply, and (2) they had ugly products and brand. The lesson we took away from this was that all that matters is supply. So we decided to focus on that above all else. We postponed building brand and delightful product until we had liquidity. Dozens of other startups took another direction. Case after case, it proved a mistake. Creating scaled supply early on matters more than anything.” — Sander Daniels, Thumbtack (This is a special edition of my newsletter — the second in a series of posts sharing insights from interviews with founders and early employees at today’s most successful marketplace businesses. Our regularly scheduled weekly Q&A series will resume in a few weeks.) The response to the first edition of this series has significantly more enthusiastic than I anticipated (who knew so many people are interested in marketplace growth 🥳), so I’m excited to jump right into part two. To be honest,…”
04Frameworks mentioned
Summary and takeaways written by PM Atlas; quotes are short excerpts. © the original author.