Andrew Van Dam, writing for the Washington Post: Where did all the jobs go? Well, we're finally starting to find some satisfactory answers to the granddaddy of all economic questions. The share of Americans with jobs dropped 4.5 percentage points from 1999 to 2016 -- amounting to about 11.4 million fewer workers in 2016. At least half of that decline probably was due to an aging population. Explaining the remainder has been the inspiration for much of the economic research published after the Great Recession.