An analysis shows that the Federal Reserve’s large-scale asset purchases have been effective at reducing the economic costs of the zero lower bound on interest rates. Model simulations indicate that, by 2012, the past and projected expansion of the Fed’s securities holdings since late 2008...

We estimate the natural rate of interest (r*) using a semi-structural model of the U.S. economy that jointly characterizes the trend and cyclical factors of key macroeconomic variables such as output, the unemployment rate, inflation, and short- and long-term interest rates. We specify a...

Before the recent recession, the consensus among researchers was that the zero lower bound (ZLB) probably would not pose a significant problem for monetary policy as long as a central bank aimed for an inflation rate of about 2 percent; some have even argued that an appreciably lower target...