Mundell–Tobin effect
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The Mundell–Tobin effect suggests that
nominal interest rate In finance and economics, the nominal interest rate or nominal rate of interest is the rate of interest stated on a loan or investment, without any adjustments or fees. Examples of adjustments or fees # An adjustment for inflation(in contrast with ...
s would rise less than one-for-one with
inflation In economics, inflation is an increase in the general price level of goods and services in an economy. When the general price level rises, each unit of currency buys fewer goods and services; consequently, inflation corresponds to a reductio ...
because in response to inflation the public would hold less in
money Money is any item or verifiable record that is generally accepted as payment for goods and services and repayment of debts, such as taxes, in a particular country or socio-economic context. The primary functions which distinguish money are as ...
balances and more in other
assets In financial accountancy, financial accounting, an asset is any resource owned or controlled by a business or an economic entity. It is anything (tangible or intangible) that can be used to produce positive economic value. Assets represent value ...
, which would drive interest rates down. In other words, an increase in the exogenous growth rate of money increases the nominal interest rate and
velocity of money image:M3 Velocity in the US.png, 300px, Similar chart showing the logged velocity (green) of a broader measure of money M3 that covers M2 plus large institutional deposits. The US no longer publishes official M3 measures, so the chart only runs thr ...
, but decreases the
real interest rate The real interest rate is the rate of interest an investor, saver or lender receives (or expects to receive) after allowing for inflation. It can be described more formally by the Fisher equation, which states that the real interest rate is approx ...
. The importance of the Mundell–Tobin effect is in that it appears as a deviation from the
classical dichotomy In macroeconomics, the classical dichotomy is the idea, attributed to classical and pre-Keynesian economics, that real and nominal variables can be analyzed separately. To be precise, an economy exhibits the classical dichotomy if real variables s ...
.
Robert Mundell Robert Alexander Mundell (October 24, 1932 – April 4, 2021) was a Canadian economist. He was a professor of economics at Columbia University and the Chinese University of Hong Kong. He received the Nobel Memorial Prize in Economic Sciences i ...
was the first to show expected inflation has real economic effects. A similar argument was introduced by economist
James Tobin James Tobin (March 5, 1918 – March 11, 2002) was an American economist who served on the Council of Economic Advisers and consulted with the Board of Governors of the Federal Reserve System, and taught at Harvard and Yale Universities. He devel ...
.


See also

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Solow–Swan model The Solow–Swan model or exogenous growth model is an economic model of long-run economic growth. It attempts to explain long-run economic growth by looking at capital accumulation, labor or population growth, and increases in productivity largel ...


References

Inflation {{economics-stub