국문초록 I. Introduction II. How The Cascadia Region Defines Itself: Is The City Regional Definition The Most Sustainable ? III. Cascadia Policy Activity and Institutions: city-Region Policy Phases And Policy Determinants IV. City-Region Jurisdictional Settings and Examples 1. The Vancouver City Region 2. Portland city-region and Willamette Valley 3. Seattle City-Region V. Some Global City-Region Case Lessons From Cascadia: Concluding Thoughts Reference