This is the third post in my mini series on employment. Part 1 illustrated how agriculture and manufacturing, the two historically large areas of employment, have collapsed over time. Part 2 drilled into the services sector which today accounts for the bulk of employment to show that many categories there have stopped to grow and are under pressure from the twin forces of automation and globalization. Why does all of this matter? My overriding argument is that we have not found a new source o...