It was made by the founder of supply-side economics, the future economics Nobelist Robert A. Mundell, in 1971.

FORBES: Supply-Side Economics Takes Two To Tango

When Robert A. Mundell won his Nobel Prize in economics in 1999, he spoke of the causes of the Great Depression in his acceptance speech.

FORBES: The Claims Against Gold Still Aren't Sticking

The best-known theory for understanding why a country's current-account balance might rise or fall was developed by Robert Mundell, a Canadian economist, and Marcus Fleming, a Briton, in the early 1960s.

ECONOMIST: Figures to fret about

The current champion of that idea is Robert Mundell, winner of 1999's Nobel Prize for Economics and a professor at Columbia University who advised the European Union for 30 years, right up through the adoption of the euro in 1999.

FORBES: Magazine Article