An interesting and very thorough study by Daron Acemoglu and Pascual Restrepo at MIT and Boston University respectively looks at how industrial robots are taking over jobs that were previously performed by humans and how this impacts the future of both wages and job creation. For the study, the authors examined the effect of industrial robot usage over the period between 1990 and 2007 (with the year 2007 selected as the last year of the study to eliminate the impact of the Great Recession) on local labor markets in the United States with the data broken down into commuting zones. Let’s look at some of their conclusions, keeping in mind that a 2013 paper by Frey and Osborne concluded that 47 percent of U.S. workers’ jobs are at risk of automation over the next two decades and that some of the impacts are felt by adding only one additional robot per thousand workers:
1.) Impact on Employment: Using the employment to population ratio between 1990 and 2007 and the increase in robots adoption of one more robot per thousand workers between 1993 and 2007, a commuting zone with a value of exposure to robots equals to the average for the entire United States experienced 0.37 percentage points lower employment to population ratio than commuting zones with no robot workers. In other words, adding one more robot per thousand workers reduced employment by 6.2 workers.
3.) Impact on Men vs. Women: The authors concluded that employment and wages fall for both men and women, however, the effects of adopting industrial robots on declining employment for men are about 1.5 to 2.0 times higher than they are for women.
4.) Impact on Different Industries: Here is a graphic which shows the negative effects of robots on the employment to population ratio in different industries over the period between 1993 and 2007:
Here is a graphic which shows the negative effects of robots on the employment to population ratio for specific occupations over the period between 1993 and 2007:
As you can see, the greatest impact on the employment to population ratio is felt in the manufacturing industries followed by services and retail. Just think about that the next time that you use a self-scanning and checkout system at your local retailer.
5.) Impact on Educational Levels: Here is a graphic which shows the negative effects of robots on the employment levels for various educational levels over the period between 1993 and 2007:
The greatest negative impact of increased use of robot workers on employment is felt by male workers with a high school or some college education.
Here is a graphic which shows the negative effects of robots on wages for various educational levels over the period between 1993 and 2007:
The greatest negative impact of increased use of robot workers on wages is felt by males and female with less that a high school education.
To close this posting, let’s look at how the employment to population ratio for American workers has dropped significantly over the past decade and a half:
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