Connectedness and directional spillovers in energy sectors: international evidence

Abstract

This paper provides a comparative analysis of how the energy-sector stocks of 20 regional blocs (Americas, Australasia, BRIC, Southeast Asia, Scandinavia, Southern Europe, Far East, Europe, European Union, Emerging Europe, Asia, G7, G12, Economic and Monetary Union (EMU), CCARBNS (Latin America, North America, PIIGS, Asia-Pacific and NORCS) are connected from 5 July 1994 to 21, 2020. It uses various techniques: Diebold and Yilmaz (2014) (DY 2014, hereafter) spillover indices, TVP-VAR, and LASSO-VAR. Our main results are as follows: First, the DY approach results show that the biggest net contributor of volatility is the CCARBNS region. followed by the G12 and G7 regions, while the biggest receiver of volatility is Southeast Asia region. Second, the TVP-VAR and LASSO-VAR results reveal that Scandinavia, Far East, and America’s regions are net receivers of energy shocks, with net transmitters being CCARBNS, G7, G12 and Emerging European regions. Third, during the 2007–2008 financial crisis and recent COVID-Since the COVID-19 outbreak, energy stock market spillovers have reached unprecedented high levels. Fourth, world policy uncertainty greatly influenced the magnitude of volatility spillovers across regional energy stock markets.