This paper introduces a new approach to modelling the conditional variance in a multivariate setting. It is essentially a combination of the popular GARCH model class with a spatial component, inspired by generalized space-time models. The resulting spatial GARCH model takes into account both...

Russian agriculture has seen substantial changes since the breakup of the Soviet Union. This paper studies the spatial integration and price volatility of the Russian wheat markets. Despite the vast distances between regions the results do not show significant price variations between regions....

The article is devoted to the estimation of volatility spillovers occurred on the oil and gas market taking into account cross-sectional dependence. The latter is implemented via spatial specifications of the BEKK multivariate volatility model. We also use DCC, GO-GARCH and ADCC models as a...