Operational and Environmental Efficiencies of Japanese Electric Power Companies from 2003 to 2015: Influence of Market Reform and Fukushima Nuclear Power Accident

Table 5

Dual variables for desirable putputs.

Year	Hokkaido	Tohoku	Tokyo	Chubu	Hokuriku	Kansai	Chugoku	Shikoku	Kyushu
Total revenue
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
Total enterprise value
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
Total electricity sold
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
% of negative value	51%	41%	38%	51%	51%	49%	44%	38%	56%