By Dirk Van Damme, Head of the Innovation and Measuring Progress division, Directorate for Education and Skills. The world is living through one of its most extraordinary revolutions, with game-changing implications, many of them still unknown. The growth rate of adults with tertiary education qualifications, and the knowledge and skills associated with them, has never been higher. In 2013, on average across OECD countries, 25% of 55-64 year-olds had a tertiary qualification, but 40% of 25-34 year-olds had – an increase of 15 percentage points over 30 years. But among OECD countries, differences are huge. Some countries had expanded their education systems a century ago, while others started to offer opportunities for tertiary education only recently. Read more...