what is the Federal Funds rate and why is it the most important interest rate in the world? (b) How does the Federal Reserve bank keep inflation under control? (c) Why did the Federal Funds Rate reach historically high levels in the early 1980s (please see page 14 of the presentation)? (d) In terms of monetary policy, how do we call the effect of selling US Bonds by the central bank? (e) In terms of monetary policy, how do we call the effect of buying US Bonds by the central bank? (f) Why do foreign nations like to purchase US Bonds?