1. In August, 1979, the annual rate of inflation in the U.S. was nearly 12%, and the U.S. short-term nominal interest rate was nearly 10%. Over the next 35 years, both the rate of inflation and...

1. In August, 1979, the annual rate of inflation in the U.S. was nearly 12%, and the U.S. short-term nominal interest rate was nearly 10%. Over the next 35 years, both the rate of inflation and short-term nominal interest rate tended to fall. By August 2014, the rate of inflation was about 2% and the short-term nominal interest rate was close to 0%. How has the real short-term interest rate changed from 1979 to 2014? Why do the inflation rate and the nominal interest rate tend to move together over the long-run?