Take rate is the marketplace's revenue divided by the gross transaction volume it processes. Airbnb's blended take rate is around 14%; eBay sits in the 10 to 13% range; high-end marketplaces (Etsy with payments, StubHub) can hit 20%+. Marketplaces with strong differentiation can charge higher take rates; commodity matching markets get squeezed.
Take rate is a strategic lever: too low and the business can't support its operating costs; too high and supply or demand defects to alternatives. The right take rate depends on the value the platform creates beyond pure matching.