Sunday, May 4, 2025

"Is AI already shaking up labor market?"

This will be the last of today's posts on the current impact of AI on labor markets.

As an introduction here is a post at Duolingo's LinkedIn last week

Below is an all-hands email from our CEO, Luis von Ahn – we are going to be AI-first. Just like how betting on mobile in 2012 made all the difference, we’re making a similar call now. This time the platform shift is AI. What doesn't change: We will remain a company that cares deeply about its employees.

text, letter

And from The Harvard Gazette, February 14, 2025:

4 trends point to major change, say researchers who studied century of tech disruptions  

A new paper by Harvard economists David Deming and Lawrence H. Summers offers early evidence of artificial intelligence shaking up the workforce.

The study measures more than 100 years of “occupational churn” — or each profession’s share in the U.S. labor market — for a historical look at technological disruption. It revealed a stretch of stability between 1990 and 2017 that runs counter to popular narratives about robots stealing American jobs. But the research also uncovered a recent shift, with the authors identifying several trends driven, at least partly, by AI.

“We really thought the paper would say something like, ‘See, I told you so. Things aren’t changing all that much,’” said Deming, the Isabelle and Scott Black Professor of Political Economy at Harvard Kennedy School and Faculty Dean of Kirkland House. “But when we got into the data, we found the story was a bit more subtle — and more interesting in some ways — than anything we expected.”

For years, Deming and Summers had talked about gauging occupational churn in the U.S. labor market over time. “It would be a systematic way to measure how much all these different types of technology have affected work,” explained Deming, the paper’s lead author.


Labor market volatility over last centuryLine chart comparing employment share of various industries over last century shows sharp contrast between farming, which had a fell steadily from the end of the 1800s till about the 1970s and professional jobs, which have shown an almost steady trend upward over time; blue-collar jobs have seen nearly steady decline since the 1950s; while sales, services, have experienced less dramatic shifts.
Employment share by industry, 1880-2024.
Source: “Technical Disruption in the Labor Market”

Last year the economists applied the metric with help from Kennedy School predoctoral fellow Christopher Ong ’23, the paper’s third author. Their findings, drawn from 124 years of U.S. Census data, originally appeared in a volume published last fall by the Aspen Economic Strategy Group. Summers, a member of the OpenAI board of directors, shared further predictions in a live interview at the Aspen Ideas Festival.

Summers was initially surprised by the level of volatility uncovered in the 1950s, ’60s, and ’70s due to the rise of what are called “breakthrough general-purpose technologies.” “But when I thought about it, it wasn’t surprising,” said the Charles W. Eliot University Professor and Frank and Denie Weil Director of the Mossavar-Rahmani Center for Business and Government at Harvard Kennedy School. “It used to be that only a very limited number of people used keyboards. Now everybody uses keyboards and there are fewer people whose whole job is to use keyboards. That turned out to be a very big structural change that the economy managed.”

The 2000s and 2010s were characterized by what Deming called “automation anxiety.” As evidence, he pointed to an influential study from 2013 asserting that 47 percent of U.S. occupations were at imminent risk of displacement by computers. But the occupational churn metric showed the pace of disruption slowing by 1990 as the labor market entered a stretch of low churn.

Then another surprise appeared in the data. “From 2019 onward,” Deming said, “it looks like things were changing quite a lot.”

“Everybody should be thinking about AI, no matter what they do for a living.”

Lawrence H. Summers, study co-author

Is AI a breakthrough technology along the lines of keyboards, electricity, and computer-based manufacturing? The co-authors’ findings led them to believe so. As evidence, they outline four emerging trends in the U.S. job market.

The first concerns the end of what economists have termed job polarization — a barbell-shaped pattern, with the labor market growing at the top and bottom of the wage distribution. 

What appeared more recently, the researchers found, is a one-sided pattern favoring well-compensated employees with high levels of training and skill. “The trend people were worried about in the 2000s was the downward ramp,” Deming said. “That meant low-paid jobs were growing but middle- and high-paid jobs were not. It’s only in the late 2010s that we see an upward ramp, with mostly high-paid jobs that are growing.”

Another trend, related to the first, finds a recent skyrocketing of science, technology, engineering, and math jobs following a surprising dip in the 2010s. The share of jobs in STEM — including software developers and data analysts — grew from 6.5 percent in 2010 to nearly 10 percent in 2024. “That doesn’t sound like a lot,” Deming said. “But it’s an almost 50 percent increase.”....

....MUCH MORE

Earlier: