American System

This is a teaching stock-flow, not a CBO forecast. It is built to show the structure of Hamiltonian political economy — the American System — as Treasury Secretary Scott Bessent has restated it, with Fed Chair Kevin Warsh’s credit channel in the second pillar.

Starting point, 2026. Manufacturing is about 10.3% of GDP and 12.9 million jobs, versus 17.3 million in 2000 and a 28% GDP share in 1953. Goods imports run about $3.3T against $2.2T of exports. Shipbuilding, API production, and mineral processing are the sovereign bottlenecks; energy is not.

Three pillars. Protection (average goods tariff × reciprocity targeting), national credit (share of new credit to plant and equipment rather than FIRE), and internal improvements (infrastructure, strategic capacity, energy abundance). Effectiveness is their geometric mean, cut when the pillars are unbalanced — a tariff without shops, or shops without credit, leaks.

Lags and bottlenecks. Demand shifts in months; slips, fabs, refiners, and tool-and-die shops take years. Machine tools gate every other sector: you cannot rebuild a commons on leased capital goods. Shipyards are the slowest stock.

Prices. Tariffs pass through in proportion to remaining import dependence, then fade as domestic supply comes on. Energy abundance and capital deepening pull the other way. Reciprocity reduces retaliation drag on exports.

Horizon. The playhead is decades from 2026 to 2096 — 2026, 2036, 2046, through the end of the century. Underneath, stocks compound every year — debt, capital, and the commons do not jump. A mix that looks merely “watch” by 2036 can still spiral by mid-century if g does not clearly outrun r. Hamiltonian policy is a seventy-year solvent, not a term of office.

Debt / GDP. The stock starts at about 124% of GDP in 2026 ($37.5T on $30T of output). The law of motion is the Domar identity: the ratio rises when r exceeds g and the primary balance is in deficit. Hamiltonian policy attacks the ratio through the denominator — real growth from plant, energy, and the industrial commons — and through customs receipts on the primary balance. Warsh’s rate path follows excess inflation; a tariff shock without capacity can lift r above g and start the spiral even while factories are being tooled. Austerity without growth can raise the ratio. Growth that outruns the average rate on the debt is the solvent. Past about 320% of GDP the identity is a crisis, not a forecast.

Sources for the frame: Hamilton, Report on Manufactures (1791); Clay’s American System; Bessent, “While America Slept,” Reagan National Economic Forum (May 2026) and “Hamilton Inspires Trump’s Economic Statecraft,” WSJ (June 2026); Warsh on productive CapEx and a narrower Fed footprint.