Study on controversial issues related to network neutrality in leading countries, focusing on economic efficiency and user protection

Perspectives on the issue of network neutrality, which has emerged due to the rapid increase in internet traffic, vary around the world depending on the circumstances and the stakeholders in each country. The goal of this study is to derive the main issues related to network neutrality based on cases from different countries, and suggest solutions that consider both economic efficiency and user protection. This study surveys the existing theoretical studies on network neutrality, and summarizes the basic principles of network neutrality as guarantee of transparency, prohibition of charging for incoming calls, prohibition of traffic discrimination, and reasonable network management, to help the reader understand the issue of network neutrality.