A Brief History of Business — Book Notes

A Brief History of Business¶

From a competitive standpoint: an efficient business model competing against another efficient one will coexist. But an efficient model competing against an inefficient one will gradually replace it.

Talking about business means talking about risk. There are four types:

• Low probability, low impact — just absorb it.
• High probability, high impact — avoid or escape it at all costs.
• High probability, low impact — mitigate it (carry an umbrella when it rains).
• Low probability, high impact — transfer it (buy insurance).

The historical arc of commerce has moved from low-node-density networks toward high, then used technology to decentralize: primitive barter → smallholder village economies (tribal) → linear trade routes (the Silk Road) → centralized commercial civilization (cities) → decentralized networks (e-commerce).

Kai-Fu Lee once described what he was doing when building an AI-powered support system for Microsoft's technical support team: "What I'm doing for the tech team is making Microsoft no longer need technical support." Business keeps pushing toward a world where it no longer needs intermediaries. (When node friction disappears, in theory the cost of production equals the cost of sale.)

In a supply-demand imbalance, you can earn a premium — but that premium attracts competitors, and eventually only wages remain. Build a moat around your position, and you can keep out competitors long enough to earn real profit. #finance