The U.S. Underestimates Growth; The official statistics are missing changes that are lifting American incomes. Martin Feldstein, May 18, 2015, Opinion. "Today’s pessimists about the economy’s rate of growth are wrong because the official statistics understate the growth of real GDP, of productivity, and of real household incomes. Understanding this problem should change the political debate about income growth and income inequality. But it should not change the focus on what matters: policies to increase everyone’s real incomes even faster." Link