individuals' sleep time exhibits both variability and volatility characterized by stationary autoregressive conditional … young children at home. Volatility is greater among parents with young children, slightly greater among men than women, but … rates. Volatility in sleep spills over onto volatility in other personal activities, with no reverse causation onto sleep …

Volatility has been one of the most active and successful areas of research in time series econometrics and economic … empirical insights to emerge from this burgeoning literature, with a distinct focus on forecasting applications. Volatility is … inherently latent, and Section 1 begins with a brief intuitive account of various key volatility concepts. Section 2 then …

Most affine models of the term structure with stochastic volatility (SV) predict that the variance of the short rate is … stochastic volatility (USV)." Of the models tested, only the A1(4) USV model is found to generate both realistic volatility … estimates and a good cross-sectional fit. Our findings suggests that interest rate volatility cannot be extracted from the cross …

, and the theory and application of dynamic volatility models. I treat the latter much more extensively, de …