Abstract
Among "ecosystem" related topics in Japanese newspapers, we can find two different streams, business ecosystem and sustainable ecosystem. First, with regard to business ecosystem, IoT ecosystem, co-creation, and social innovation fascinate various industries. Second, with regard to sustainable ecosystem, people all over the world have been much aware of the importance of CO2 emission, Sustainable Development Goals (SDGs), Corporate Social Responsibility (CSR), and business ethics. This presentation sheds light on the relevance and irrelevance between the two ecosystems to each other.