AAI International Advisor for Japan. Professor Hayashi’s main research area is competition law in EU, US, and Japan, and his current research projects are (a) merger regulation in Antitrust, especially about legislative history of the Japanese antitrust merger regulation; (b) Law and Economics and (c) competition and regulation in the presence of network externalities. He is also actively engaged in making policy recommendations and deliberations in the area of competition law and policy. He is a member of the Competition Policy Research Center, Fair Trade Commission of Japan.