This paper considers a multivariate t version of the Gaussian dynamic conditional correlation (DCC) model proposed by … than by GARCH type volatility estimates. The t-DCC estimation procedure is applied to a portfolio of daily returns on … suggest a general trend towards a lower level of return volatility, accompanied by a rising trend in conditional cross …

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 … independent of other demographics. A theory of economic incentives to minimize the dispersion of sleep predicts that higher …

Financial frictions are known to raise the volatility of economies to shocks (e.g. Bernanke andGertler 1989). We follow … this line of research to the labor literature concerned by the volatility of labor market outcomes to productivity shocks … are a good candidate to solve the volatility puzzle and rejoin Pissarides (2009) in arguing that hiring costs must be …

individual effects on economic growth and volatility using the power-ARCH framework with annual data since the 1890s. The results …