Fisher equation
Estimate of future interest rates
In financial mathematics and economics, the Fisher equation expresses the relationship between nominal interest rates, real interest rates, and inflation. Named after Irving Fisher, an American economist, it can be expressed as real interest rate ≈ nominal interest rate − inflation rate.
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Fisher equation
Estimate of future interest rates
In financial mathematics and economics, the Fisher equation expresses the relationship between nominal interest rates, real interest rates, and inflation. Named after Irving Fisher, an American economist, it can be expressed as real interest rate ≈ nominal interest rate − inflation rate.
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From Wikipedia
In financial mathematics and economics, the Fisher equation expresses the relationship between nominal interest rates, real interest rates, and inflation. Named after Irving Fisher, an American economist, it can be expressed as real interest rate ≈ nominal interest rate − inflation rate. In more formal terms, where r {\displaystyle r} equals the real interest rate, i {\displaystyle i} equals the nominal interest rate, and π {\displaystyle \pi } equals the inflation rate, then ( 1 + i ) = ( 1 + r ) ( 1 + π ) {\displaystyle (1+i)=(1+r)(1+\pi )} . Since the r π {\displaystyle r\pi } is negligible the approximation r = i − π {\displaystyle r=i-\pi } is often used instead since the nominal interest rate, real interest rate, and inflation rate are usually close to zero. The form r = 1 + i 1 + π − 1 {\displaystyle r={\frac {1+i}{1+\pi }}-1} is also common.
Text: Wikipédia, CC BY-SA 4.0. ·
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