Notes, Comments and Preliminary results Jul 14 2020 Yasuhito Tanaka   Involuntary unemployment with indivisible labor supply under perfect competition   Abstract  Contact Information  Citation  Full Text  -  Preliminary Result   Dec 24 2019 Masahiko Hattori and Yasuhito Tanaka   General analysis of dynamic oligopoly with sticky price   Abstract  Contact Information  Citation  Full Text  -  Note