System File

Supply-Side Economics

Promised trickle-down. Wallet test failed.

The System Files · One Page Per Rival · No. 06

The Record: 1981 — Present
What it promised
Cut taxes at the top — on high incomes, capital, and corporations — and the gains flow downward: investment, jobs, and rising wages for everyone. Growth so strong the cuts pay for themselves. "A rising tide lifts all boats."
What it ran on
Accumulation at the top, trusted to transmit downward. The fuel was the same as capitalism's — capital — but concentrated harder, on the theory that concentration is where investment comes from.
What it demanded of the worker
Patience. The gains arrive at the top first, by design; the worker's share arrives later, through the transmission. The worker's job was to wait for the trickle.
What the wallet got
The waiting is now five decades old and documented. The top's share of income and wealth rose to records; the CEO-to-worker ratio went from roughly 21:1 to roughly 285:1; median wages stagnated against productivity; and the transmission mechanism — the trickle itself — is the single most studied failure in modern economic policy. The tide rose. The boats did not.
Where it was honest
Incentives are real, and marginal rates do change behavior — the insight wasn't fake, it was oversold. And it correctly identified that punishing success is a dead end, a principle Affordism keeps: our ceiling is unbounded. The difference is that we bolt the floor to it.
The verdict
Scored 5.5 of 24 on the eight tests — documented, not projected. Its own defining metric, the worker's wallet, is where it failed most completely: 0.5 on Material Wellbeing, the lowest wallet score of any implemented system except financialized capitalism. It asked the worker to wait, and the wait never ended.
Exhibit A — Their own best case, in their own words

Don't take our word for any of this. Read the system's own canon and its own advocates: George Gilder's Wealth and Poverty (1981), the intellectual bestseller of the movement; Arthur Laffer's curve and its defenders at the Laffer Center; and the Reagan-era policy record in the primary sources. If their case reads stronger to you than the fifty-year wallet record, follow it. We link our rivals' best material on purpose — a system confident in its comparison doesn't hide the competition.