Dolgopolova, Irina; Hye, Qazi; Stewart, Iyala - In: Quality & Quantity: International Journal of Methodology 48 (2014) 2, pp. 887-898
is represented by four sub-variables (electric power, oil, natural gas, and coal energy). Using a panel data covering …">2004</CitationRef>) approach to determine cointegration and the (Econometrica, 55, 251–276, <CitationRef CitationID="CR17 …