“…This analysis can be applied easily to all sectors regardless length and complexity of their production processes. However, as the number of the sectors in a national input-output table is limited, for instance, to 403 in the case of Korea, product specific energy consumptions cannot be considered (Wright, 1974;Bullard and Herendeen, 1975;Denton, 1975;Pick and Becker, 1975;Miller and Blair, 1985;Peet et al, 1985;Peet, 1993;Ospelt et al, 1996;Lenzen, 1998;Pachauri, 2002;Pachauri and Spreng, 2002;Park and Heo, 2007;Vringer et al, 2009).…”