Prof. Greg Clark CBE is global advisor on cities, innovation, mobility, and investment. He is Group Advisor for Future Cities & New Industries at HSBC, moderator of the World Cities’ Summit Mayors Forum, Chairman of Connected Places Catapult. He has worked with more than 300 cities in 5 continents, and is the author of 10 books. His monthly column, The Planet of Cities, is published by RICS. He is global cities expert on the BBC World Service My Perfect City. He was previously chairman of the OECD Forum of Cities & Regions and Global Fellow, ULI and the Brookings Institution.