Seigniorage

Seigniorage is the profit an issuer earns from creating money, measured as the difference between money's face value and its cost of production. A $100 bill costs the US government less than 20 cents to print. The term comes from the seigneur, the feudal lord whose mint kept a share of the bullion brought in for coining.

Why it matters

Seigniorage is a real revenue stream, not an accounting curiosity. The Federal Reserve earns income on the assets backing its currency and remits tens of billions of dollars to the Treasury in a typical year. In the extreme, seigniorage shades into an inflation tax: when a government finances spending by creating money faster than the economy grows, it collects purchasing power from every existing holder of the currency. The more a state relies on seigniorage, the worse its money tends to perform, which makes the concept a useful lens for judging any monetary system.

In the gold vs bitcoin debate

Neither gold nor bitcoin grants anyone meaningful seigniorage, and that is much of their appeal. No mint can conjure gold, and while miners of both kinds earn revenue, competition pushes their production costs toward the market value of what they produce, leaving little issuer profit. Bitcoin makes this explicit: miners spend real energy and hardware for block rewards on a fixed schedule, so the system has no seigneur at all. Fiat currency, by contrast, is a system where seigniorage accrues continuously to the issuer. By this measure, both assets are money without an owner, which is precisely the property their holders are paying for.