1 Introduction and Overview (Ryuhei Wakasugi) -- 2 Features of Japanese Internationalized Firms: Findings Based on Firm-Level Data (Ryuhei Wakasugi, Banri Ito, Toshiyuki Matsuura, Hitoshi Sato, Ayumu Tanaka and Yasuyuki Todo) -- 3 Heterogeneity and the Structure of Export and FDI: A...