🔬 Discovery

Mundell–Fleming model

Modelo Mundell-Fleming

Date
1962 · confidence medium
Place
Washington, D.C., United States
Credited to
Robert Mundell and Marcus Fleming
Field
Knowledge & symbols

What was discovered

An extension of the IS-LM model to a small open economy, describing the short-run relationship between exchange rate, interest rate and output, and the economic-policy 'impossible trinity'.

Formulated independently by Robert Mundell and Marcus Fleming, both economists at the International Monetary Fund at the time.

What it led to

  • Formulation of the economic-policy trilemma
  • A theoretical basis for monetary policy in open economies
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Sources✓ verified 2026-09-28