Abstract
I classify the decoupling status using the change rate of CO2 emission per capita and the change rate of income per capita at the prefecture level in Japan. I evaluate the influence over the change rate of CO2 emission per capita by the change rate of income per capita, the change rate of energy intensity and the change rate of carbon intensity employing decompositon method. I clarify the influence of the change rate of income per capita, the change rate of energy intensity and the change rate of carbon intensity on the decoupling status. As a result, 4 prefectures achieve ″Absolute good decoupling″, and both the change rate of energy intensity and the change rate of carbon intensity are negative in all prefectures.