This paper presents insights on U.S. business cycle volatility since 1867 derived from diffusionindices. We employ a Bayesian dynamic factor model to obtain aggregate and sectoral economicactivity indices. We find a remarkable increase in volatility across World War I, which isreversed after...

We estimate demand, supply, monetary, investment and financial shocks in a VAR identified with a minimum set of sign restrictions on US data. We find that financial shocks are major drivers of fluctuations in output, stock prices and investment but have a limited effect on inflation. In a second...

The prominent role of monetary policy in the U.S. interwardepression has been conventional wisdom since Friedman andSchwartz [1963]. This paper presents evidence on both thesurprise and the systematic components of monetary policybetween 1929 and 1933. Doubts surrounding GDP estimates forthe...