In the
long run, many economists think that automation and robotics are going to
replace a significant percentage, if not the majority, of manufacturing jobs.
However, most of those job losses will be in low-wage countries
where unskilled workers are doing routine, mind-numbing jobs. Despite an
increase in robots on the assembly line, the United States has added more than
25,000 manufacturing jobs during 2016.
At the beginning of the 19th century, it was so expensive to make apparel that a typical person had one outfit of clothing. As costs started dropping because of automation, people started buying more and more, so that by the 1920s the average person was consuming ten times as much cloth per capita per year. More demand for cloth meant a greater need for textile workers.
In 1900, 41% of American workers were employed in agriculture, but by 2000, automated machinery, such as tractors and harvesting equipment, brought that down to just 2%, MIT professor David Autor wrote in the Journal of Economic Perspectives in 2015. Farmers moved to cities and took other jobs while food became less expensive.
The arrival of the automobile ushered out horses, reducing the need for blacksmiths and stable hands, but the auto industry created many more jobs than the horse-drawn economy lost.
In the 21st century, computers are performing tasks humans once did, making workers more productive. When ATMs were introduced in the 1970s, people thought they would be the death knell for bank tellers. The number of tellers per bank did fall, but because ATMs reduced the cost of operating a bank branch, more branches opened, which in turn hired more tellers. U.S. bank teller employment rose by 50,000 from 1980 to 2010.
The Future of American Jobs Are we headed for a 15-hour work-week? That's what noted economist John Maynard Keynes predicted in his famous 1930 essay Economic Possibilities for Our Grandchildren. He said that in the next century technology would make us so productive we wouldn't know what to do with all our leisure time. It hasn't quite worked out that way yet, but we do have shorter hours now than 80 years ago. As a nation, we should strive for a shorter work-week. Americans work longer hours than workers in Europe where a 35-hour work-week is the norm. Europeans also enjoy six weeks of vacation, while Americans have two weeks off per year.