This document discusses complexity and governance in metropolitan areas. It argues that globalization and new technologies are decentralizing power and placing it in the hands of communities and individuals. Metropolitan areas are complex systems that are often self-governing. Good governance requires efficient operations, responsible collective decision making, and robust, congruent institutions. The functions of city government include service, community involvement, coordination across sectors, and managing risks. Analytically, governance can be evaluated based on outcomes like citizen satisfaction, trust, and legitimacy. Strategic areas for metropolitan governance include technologies like the internet of things, smart cities, collaborative management, and re-territorialization.