This course explains the feature and current business model of ICT industry from the global perspective which is transforming its shape very rapidly reflecting technological progress such as 5G, IoT, big data and AI in addition to digitization since 1990s. This course also summarizes competitive and cooperative relationship simultaneously occurred between traditional network providers (telecommunications)/media (e.g. newspaper and television) and platformers (e.g. GAFA) from the perspective of economics and introduce present status and regulatory discussion concerning media converged services. Furthermore, we analyzes the importance of “media localism” based on the economics of information and consider the role of ICT including media localism to solve social issues in the era of aging population.