# The Economics of Marketplaces: Take Rates, Middlemen, and Power

Page: https://stenobird.com/podcast/run-the-numbers-6739797/the-economics-of-marketplaces-take-rates-middlemen-and-power
Text version: https://stenobird.com/podcast/run-the-numbers-6739797/the-economics-of-marketplaces-take-rates-middlemen-and-power.md
Podcast: [Run the Numbers](https://stenobird.com/podcast/run-the-numbers-6739797)
Published: 2026-03-02T10:02:00+00:00
Episode link: https://podcasters.spotify.com/pod/show/cjgustafson222/episodes/The-Economics-of-Marketplaces-Take-Rates--Middlemen--and-Power-e3fnml5
Audio file: https://anchor.fm/s/10e7a9a40/podcast/play/116168805/https%3A%2F%2Fd3ctxlq1ktw2nl.cloudfront.net%2Fstaging%2F2026-1-28%2F418988753-44100-2-0bf45ceaa7c7d.mp3
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JSON: https://stenobird.com/v1/public/podcasts/run-the-numbers-6739797/episodes/the-economics-of-marketplaces-take-rates-middlemen-and-power
Duration seconds: 3033

## Resource

In this episode of Run the Numbers, CJ breaks down the 5,000-year history of marketplaces—from Mesopotamia to Amazon—and the economics behind take rates, trust layers, and vertical unbundling. We unpack Airbnb’s fee backlash, Facebook Marketplace’s hidden value, why inventory kills platforms, and how AI will reshape discovery—without eliminating the middleman. — SPONSORS: Rillet is an AI-native ERP built for modern finance teams that want to close faster without fighting legacy systems. Designed to support complex revenue recognition, multi-entity operations, and real-time reporting, Rillet helps teams achieve a true zero-day close—with some customers closing in hours, not days. If you’re scaling on an ERP that wasn’t built in the 90s, book a demo at https://www.rillet.com/cj Tabs is an AI-native revenue platform that unifies billing, collections, and revenue recognition for companies running usage-based or complex contracts. By bringing together ERP, CRM, and real product usage data into a single system of record, Tabs eliminates manual reconciliations and speeds up close and cash collection. Companies like Cortex, Statsig, and Cursor trust Tabs to scale revenue efficiently. Learn more at https://www.tabs.com/run Abacum is a modern FP&A platform built by former CFOs to replace slow, consultant-heavy planning tools. With self-service integrations and AI-powered workflows for forecasting, variance analysis, and scenario modeling, Abacum helps finance teams scale without becoming software admins. Trusted by teams at Strava, Replit, and JG Wentworth—learn more at https://www.abacum.ai Brex is an intelligent finance platform that combines corporate cards, built-in expense management, and AI agents to eliminate manual finance work. By automating expense reviews and reco…

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