Mundell is best known in politics for his support of
tax cuts and
supply-side economics; however, in economics it is for his work on currency areas, as well as international
exchange rates, that he was awarded the
Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel by the Bank of Sweden (
Sveriges Riksbank). Nevertheless, supply-side economics featured prominently in his Bank of Sweden prize speech. In the 1960s, Mundell's native Canada floated its exchange rate: this caused Mundell to begin investigating the results of
floating exchange rates, a phenomenon not widely seen since the 1930s "
Stockholm School" successfully lobbied
Sweden to leave the
gold standard. In 1962, along with
Marcus Fleming, he co-authored the
Mundell–Fleming model of exchange rates, and noted that it was impossible to have domestic autonomy, fixed exchange rates,
and free capital flows: no more than two of those objectives could be met. The model is, in effect, an extension of the
IS/LM model applied to currency rates. According to Mundell's analysis: • Discipline under the
Bretton Woods system was more due to the US
Federal Reserve than to the discipline of gold. • Demand side
fiscal policy would be ineffective in restraining
central banks under a floating exchange rate system. • Single currency zones relied, therefore, on similar levels of price stability, where a single monetary policy would suffice for all. His analysis led to his conclusion that it was a disagreement between
Europe and the
United States over the rate of inflation, partially to finance the
Vietnam War, and that Bretton Woods disintegrated because of the undervaluing of gold and the consequent monetary discipline breakdown. There is a famous point/counterpoint over this issue between Mundell and
Milton Friedman. This work later led to the creation of the
euro and his prediction that leaving the Bretton Woods system would lead to "
stagflation" so long as highly progressive income tax rates applied. In 1974, he advocated a drastic tax reduction and a flattening of income tax rates. Although lionized by some conservatives, he had many of his harshest critics from the right as he denied the need for a fixed gold-based currency or currency board; still often recommended this as a policy in
hyperinflationary environments; and was both a fiscal and
balance of payments deficit hawk. He is well known for stating that in a floating exchange rate system, expansion of the money supply can come about only by a positive balance of payments. In 2000, Mundell recommended that
Canada permanently tie
its dollar's value to the
U.S. dollar. == Father of the euro ==