the.com/interest rate
the price of impatience, quoted as a percentage.
means the cost of borrowing money or the reward for lending it, expressed as a yearly percentage of the amount.
from from old debates over usury; medieval lenders called the fee interesse, latin for it matters, the compensation owed for a loss suffered by waiting.
central banksset one rate to steer an entire economy
compoundingturns small rates into large fortunes, slowly
negative ratesbanks once paid you to borrow, briefly
1980s peakus rates topped 20 percent fighting inflation