1. Science and Technology Policy Institute, Special Construction Center, Boramae-Ro 5 Gil 15, Dongjak-Gu, Seoul 156-714, South Korea
2. Department of Public Administration, Korea University, Anam-Ro 145, Seongbuk-Gu, Seoul 136-701, South Korea
3. Daejeon Development Institute, Jungang-Ro 101, Jung-Gu, Daejeon 301-763, South Korea