than by GARCH type volatility estimates. The t-DCC estimation procedure is applied to a portfolio of daily returns on …This paper considers a multivariate t version of the Gaussian dynamic conditional correlation (DCC) model proposed by …-DCC specification. The t-DCC model also passes a number of VaR diagnostic tests over an evaluation sample. The estimation results …

paper offers a solution to this disagreement, suggesting that volatility carries a positive direct effect, but also a … volatility is then ambiguous. The paper reveals the underlying endogeneity of government size in a balanced panel of 95 countries … increase of volatility lowers growth by up to 0.57 percentage points in a democracy, but raises growth by 1.74 percentage …

-term causality can provide good guidance for investors. This paper studies the causality and correlation relationship between the … data from 2000 to 2016. Various panel unit root, co-integration, and model specification and estimation tests are carried …

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 …