City NIMBYs, a new article authored by NYU Furman Center Faculty Director Vicki Been, explores the growing trend of opposition to development in cities. It describes the academic discussions of this trend to date, reviews the known impact of opposition and regulatory barriers to development, and proposes factors that may explain the growing opposition to development in cities. In conclusion, the article discusses what the underlying causes of opposition to development reveal about the differences between suburban and city-focused Nimbyism, and suggests research and policy analysis that might help decision makers respond more effectively to opposition to development in cities.