서울시 정책특보,
전 서울연구원장, 전 한국조세재정연구원장, 전 연세대학교 경제학과 객원교수, 전 통계청장 Seoul Policy Special Report
Former Seoul Institute director
Former President of Korea Institute of Public Finance (KIPF)
Former Visiting Professor, Yonsei University
Former Commissioner of Statistics Korea