The Fisher equation, familiar from Chapter 4, states that the nominal interest rate equals the real interest rate plus the inflation rate.
The equation on this slide is obtained by solving the Fisher equation for the real interest rate, and using the expected (rather than actual/realized) inflation rate to determine the ex ante (rather than ex post) real interest rate.
Thus, the real return savers expect to earn on their loans, and the real cost borrowers expect to pay on their debts, is the nominal interest rate minus the inflation rate people expect.
The Fisher equation, familiar from Chapter 4, states that the nominal interest rate equals the real interest rate plus the inflation rate. The equation on this slide is obtained by solving the Fisher equation for the real interest rate, and using the expected (rather than actual/realized) inflation rate to determine the ex ante (rather than ex post) real interest rate. Thus, the real return savers expect to earn on their loans, and the real cost borrowers expect to pay on their debts, is the nominal interest rate minus the inflation rate people expect.
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