Bitcoin is regularly referred to as new gold, digital gold or gold 2.0. If Bitcoin is indeed gold-like the correlation of Bitcoin and gold returns should be positive. We estimate the correlation of the two assets across time, across different return frequencies and across quantiles and find a...

This paper describes a novel and simple way to jointly estimate spillovers and correlations. The proposed framework is based on an expanded return vector including lagged returns. The correlation matrix of this expanded return vector provides the (contemporaneous) correlation and (lagged...

Existing multivariate GARCH models either impose strong restrictions on the parameters or do not guarantee a well-defined (positive definite) covariance matrix. We focus on the multivariate GARCH model of Baba, Engle, Kraft and Kroner (BE=) and show that the covariance and correlation is not...