AI Economics — free book

The Business Engineer
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AI Economics

The Discipline of the Money in the AI Era. Price the work. Build the margin. Own the ledger.

104 pages41 platesby Gennaro Cuofano
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First edition · Aug 2026 AI Economics — cover
The money changed its object
The AI era brought marginal cost back: price the work, build the margin, own the ledger.

Software sold copies at near-zero marginal cost. This era sells work, and work has a cost of goods: inference, paid per token, on a price curve the firm does not control. Gross margin becomes a design outcome, and the seat breaks from both ends.

The capital to produce intelligence is committed years ahead on a physical clock, against demand that arrives in quarters. The P&L you read is not the capital you owe, so the book builds instruments to reconcile the two: the hurdle, the acid test, the joints.

A page from inside
A balance scale: tokens, compute and attention on one side, outcomes the referee accepted on the other, with three readings underneath.
Plate XII — Cost per Accepted Outcome · one of 41
What you’ll take away
The unit
Cost per accepted outcome

Tokens, environment compute and attention, divided by outcomes a referee accepted. Budget in tokens per accepted outcome, never in price tables.

The capital
Revenue against depreciation, not capex

Capex buys an asset that produces revenue for five to thirty years; revenue is a twelve-month flow. Three comparisons work instead.

The instruments
The hurdle and the acid test

The hurdle is a division on the capital deployed. The acid test scores six gauges on one shared rail so a composite cannot average the finding away.

GC

Gennaro Cuofano — creator of The Business Engineer & FourWeekMBA, read by 94,000+ founders, operators, and investors. Text and plates are original work. Where the field’s practice runs ahead of published proof, the book states the pattern as method, with the observation that would retire it.

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