I did a visual version of this some years ago to reason about companies and products.

https://www.qtra.io/hn-comment-bizmodels (pdf)

The "Arbitrage" version isn't labelled properly, but it's basically taking money from a buyer in one market and buying from a seller in another market, then delivering the service back between markets.

It's convoluted and reflects thinking from 5 years ago, but if a product/company doesn't make money one of these ways, it probably doesn't make money, and if it does, metrics are just a matter of scaling numbers in one of the nodes.