Gauti B. Eggertsson, Manuel Lancastre, and Lawrence H. Summers explain in their paper "Aging, Output Per Capita and Secular Stagnation" the role of aging in the Secular Stagnation model.
Peter Conti-Brown, author of one of the best book about the institution of Fed, "The Power and Independence of the Federal Reserve", explains what Jay Powell's nomination means to the Fed independence and why Janet Yellen should have stay as governor after his Chair term ended.