volatility of US and UK GDP growth appears to have become increasingly correlated in the recent past. …

We use a factor model with stochastic volatility to decompose the time-varying variance of Macro economic and Financial … component plays an important role in driving the time-varying volatility of nominal and financial variables. The cross …-country co-movement in volatility of real and financial variables has increased over time with the common component becoming more …

We build a dynamic factor model with time-varying parameters and stochastic volatility and use it to decompose the … common global uncertainty plays a primary role in explaining the volatility of inflation, interest rates and stock prices …, although to a varying extent over time. Region-specific uncertainty drives most of the exchange rate volatility for all Euro …

We develop a dynamic factor model with time-varying parameters and stochastic volatility, estimate it with several … findings, the estimates suggest that global uncertainty plays a primary role in explaining the volatility of inflation …

allow for low-frequency variation in the volatility of the shocks, and 2) the estimated degrees of freedom are quite low for … exclude the Great Recession from the sample. We also show that inference about low-frequency changes in volatility - and, in …