Why is the UK\u2019s rate of growth so low? What can be done to solve the \u2018productivity puzzle?\u2019 How can the government close the UK\u2019s regional economic divides? And can politicians ever reach consensus on these vital questions?\n\nIn an event hosted by the Institute for Government and the Policy Institute at King\u2019s College London, Bronwen Maddox is joined by David Sainsbury and Ed Balls for a wide-ranging and thought-provoking discussion at the IfG.\n\nLord Sainsbury, the founder and chairman of the Institute for Government, and minister of science and innovation from 1998\u20132006, presents the striking conclusions of his new book Windows of Opportunity: How nations create wealth.\n\nEd Balls, education secretary from 2007\u201310 and shadow chancellor from 2010\u201315, who describes Windows of Opportunity as "a call to arms to policy makers", sets out his thoughts on what governments can do to drive \u2013 and avoid hindering \u2013 growth and productivity.