Global energy markets connectedness: evidence from time–frequency domain

Abstract

We examine the presence of dependence across 51 energy markets classified into different regions from Jan 2007 to June 2021. In order to examine the presence of dependence across different energy markets, we apply standard and threshold dependence measures proposed by Diebold and Yilmaz, Int J Forecast 28:57-66, ( 2012 ) and Baruník and Křehlík, J Financ Econ 16(2):271-296, ( 2018 ). We highlight the presence of strong dependence between the energy markets at both regional level and across other regions. European and American energy markets are highly connected within the region over the long-run whereas Asia–Pacific and the African energy markets offer optimal diversification opportunities. Both short- and long-run dependence exists between Chinese and the Hong Kong energy markets and between the US and Canadian energy markets. We also witness substantial increase dependence across all the energy markets during different crisis periods.

Portfolio risk and return between energy and non-energy stocks

“…Diversifying asset classes based on their greenness allows investors to tailor their investment strategies. Indeed, from the investor perspective, investing in the energy market provides new investment opportunities and a given level of risks [ [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] , [16] , [17] , [18] , [19] , [20] , [21] , [22] , [23] , [24] , [25] , [26] , [27] , [28] , [29] , [30] , [31] , [32] , [33] , [34] , [35] , [36] , [37] , [38] , [39] , [40] , [41] , [42] , [43] , [44] , [45] , [46] , [47] , [48] , [49] , [50] , [51] , [52] , [53] , [54] , [55] , [56] , [57] , [58] , [59] , [60] , [61] , [62] , [63] ]. Over recent years, the growing popularity of this asset class has inspired academia to explain the optimal performance of energy funds compared with their conventional counterparts.…”