Average is Over: Powering America Beyond the Age of the Great Stagnation is a 2013 book (release date: September 12, 2013) by economist Tyler Cowen laying out his vision for the future trajectory of the global economy. It is a sequel to Cowen's 2011 book The Great Stagnation that argued that America had exhausted many of the low-hanging fruit (such as cheap land and easily achievable improvements in education) that had powered its growth in the 19th century and early 20th century.