Friday’s Labor Department data shows an uptick in jobs, but an unemployment rate that remained steady from February to March. While the size of the labor force is increasing, the economy is not strong enough to get all would-be workers off the sidelines and into jobs.
In 1900, 41 percent of the U.S. workforce was employed in agriculture. One hundred years later, that share had declined to 1.9 percent. Over that interval, the jobs that were easy and cheap to mechanize were mechanized, and now we are left with a handful of jobs that machines find extremely difficult to do. Machines can’t make strategic decisions about which crops to grow, and as a general rule they can’t fix themselves, so that leaves a significant role for managers and mechanics. Until recently, machines were also really bad at doing things like picking heads of lettuce and other delicate crops, as this requires a deftness of hand and an attention to detail that machines lack.