1. Sunjoo Park is Researcher at the Korea Institute of Public Administration, 235 Jinheung-ro, Bulgwang 1(il)-dong, Eunpyeong-gu, Seoul, Seoul 135-706, Republic of Korea.
2. William Bowen is Professor and Director, PhD Program in Urban Studies and Public Affairs at Cleveland State University, 1717 Euclid Blvd, Cleveland, Ohio 44115, United States.
3. Taekyoung Lim is a PhD Candidate at Cleveland State University, 1717 Euclid Blvd, Cleveland, Ohio 44115, United States.
4. Junseop Shim is Professor at Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-756, Republic of Korea;