We conduct a systematic analysis of the costs and benefits of large-scale securities purchases, using the Federal Reserve's QE4 program as a concrete example. This program was initiated at the onset of the pandemic in March 2020 and continued for two years, leading to a doubling of the Fed's...

This paper describes the construction of a financial stress index. This stress index differs from other indexes in that it incorporates the co-movement and volatility of financial series as well as the levels of the series. Our index also uses past experience more than others to guide the...