1. HaeRan Shin is Professor in the Department of Geography, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, South Korea and Adjunct Professor at the Institute for Korean Regional Studies, Institute for Gender Research, The Institute for Peace and Unification Studies, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, South Korea; Thi My Hang Bui is a PhD student in the Department of Geography, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, South Korea;