Development of Eco-efficiency as an indicator of sustainable activities of company

Eco-efficiency was prompted by WBCSD (World Business Council for Sustainable Development) as a major concept for company to make in enabling corporate progress towards sustainability. The purpose of this research is to show applicability of eco-efficiency as an evaluation indicator of company's activity to achieve sustainable society. Through investigation of several case studies collected by WBCSD showed that application of Eco-efficiency is still primitive stage. The following issues were pointed out.(1) Most of case studies just calculated limited aspects of environmental loading and various environmental influences were not fully considered.(2) To establish the different quantification method for each users of Eco-efficiency is important. In order to use Eco-efficiency as concept or tool to achieve sustainable society, it showed be more universal. Eco-efficiency with transparent data and calculation method should be used by various stakeholders. Key data to calculate Eco-efficiency depend on the purpose of each stakeholder. The stakeholders are categorized and possible definitions of Eco-efficiency for each stakeholder is discussed in this study.