C) Professor, Graduate School of International Studies, Hanyang University (Ph.D.)

C) Head Professor of Social Innovation Convergence Department, Hanyang University

C) Expert member of the Jobs Committee under the direct control of the President

C) Member of the Cooperative Policy Deliberation Committee of the Ministry of Strategy and Finance

C) Member of Fund Selection Committee, Ministry of Employment and Labor

C) Population Policy Advisory Board, Board of Audit and Inspection

C) Executive Director of Korea-Japan Economics and Commerce Association/Korean Japanese Society, etc.

Former) Visiting Professor, Faculty of Economics, Keio University

Broadcasting) Future Class (Tvn) / Myunggyeon Manri (KBS), etc.

Column) Population and economy (The Hankook Ilbo), etc.

Book) Self-sustaining Society/The Future of Population Consumption in Korea/
Korea Will Disappear/The Future of Population Shock Korea/
The power to read the consumer psychology of the FIFA generation / Generation war
The IKEA generation, their counterattack has begun, etc.