Choi served as an economics professor at the
University of Wyoming in the United States and at the
Hankuk University of Foreign Studies, as the President of the Korea Institute of Public Finance, and as Chief of
National Assembly Budget Office. In May 2013, Choi was named chairman and chief executive officer of South Korea's
National Pension Service (NPS). The NPS has
₩420 trillion (US$400 billion) in
assets under management, making it one of the world's top four pension funds in terms of total assets. ==References==