It helps that this is an idea driven , not by Westminster but by the leaders of a thriving impact economy, who see partnering with government as essential to turbo-charge its growth. They include charitable foundations, impact investors, mainstream investors, such as Legal & General, and a wide-variety of brand-name companies with a track record of social action, including Greggs, Severn Trent, Octopus Group and Greene King. Several recent impact labs hosted by the London School of Economics, bringing together different government departments with impact economy counterparts, have already identified some promising opportunities for action. Watch this space.