Abstract
Viewpoints of several stakeholders were introduced to the concept of eco-efficiency in order to use it for incorporating the evaluation criteria of outsider into decision-making of the company, and to help dialog between factory and outsiders over the company policy. Value and environmental impact differ among stakeholders. Eco-efficiency of several air-conditioners sold in Japan was evaluated and compared for different stakeholders. Market share weighted with external evaluation of environmental soundness, market share, surplus value, and surplus value weighted with environmentally friendly design were value for company, investor, ordinary consumer, and green consumer, respectively. Eco-efficiency for various stakeholders was calculated for dialog on management strategies of a factory. Profit, tax revenue and job opportunity, and contribution to society were value for company and investor, neighborhood citizens and local government, and NGO, respectively. Environmental impact of the concerned aspects was calculated for each stakeholder. These case studies demonstrated the feasibility of such applications of eco-efficiency.
