Large-scale central bank purchases of government bonds have made the long-term interest rate key in the monetary policy debate. How central banks react to bond market movements has varied greatly from one episode to another. Driving the term premium in long-term rates negative may stimulate...

The financial crisis and subsequent economic recession led to a rapid increase in the issuance of public debt. But large-scale purchases of bonds by the Federal Reserve, and other major central banks, have significantly reduced the scale and maturity of public debt that would otherwise have been...