The Taylor Rule is a rule that links inflation and economic growth to a central bank's policy rate.
It was created in 1993 by economist John Taylor and presupposes an equilibrium federal funds rate that is 2% higher than the yearly inflation rate.
Thus, Twice is the answer for the blank.
It means that the real interest rate should be raised when inflation increases.
The Taylor principle is the theory that, in order to reduce economic heat when inflation rises (by raising the real interest rate), the nominal interest rate should be raised "more than one-for-one."
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