Canaries in the Coal Mine: Stanford Economist Bharat Chandar on Young Workers and Surviving the AI Era

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Overview

Bharat Chandar is an economist at the Stanford Digital Economy Lab who studies how AI affects work. He considers AI's effect on the labor market one of the most important questions in labor economics today. He says it became the core of his research over roughly the past year and a half, once he began using these tools himself and understood what they could do. In this session he covers three things: what his research has found about AI and recent employment, why entry-level workers seem most exposed, and his case for using AI as a learning tool so that careers can look less like a "ladder" and more like a "lattice."

13 min read

What the data show about AI and recent employment

Chandar describes a study he published with Erik Brynjolfsson and Ruyu Chen, titled "Canaries in the Coal Mine." The researchers compared occupations with high and low exposure to AI. They used data from the payroll services company ADP to track millions of workers in the United States.

Across the workforce as a whole, the study found no large difference in employment trends between more-exposed and less-exposed occupations. The picture changed when the researchers looked only at young workers. In highly exposed occupations such as software development, customer service, and administrative work, employment among young workers declined. In less-exposed occupations, employment among young workers kept growing. Employment among more experienced workers followed its existing trends even in exposed jobs. Chandar summarizes the headline figure this way: young workers in more AI-exposed occupations saw 16% slower employment growth, which he calls a substantial number.

He links this to what many people starting their careers now report, that getting started has become hard. That is why the team chose the title "Canaries in the Coal Mine." They see these results as a possible early signal of a larger transformation and plan to keep tracking them to find out whether that is what they are.

Ruling out alternative explanations, and what remains uncertain

Chandar says it is not certain whether this is a temporary economic fluctuation or a structural shift driven by AI. So the team tested the most plausible alternative explanations.

The first was interest rates. Chandar notes that the occupations most exposed to rate changes tend to be less exposed to AI. Transportation and construction, for example, are very sensitive to interest rates but have almost no AI exposure. He treats this as one of the key points suggesting the cause is not rate movements.

The second was overhiring in the tech sector. The results stayed the same when the researchers excluded tech jobs and computer-related occupations. Across the various alternatives they tested, the findings remained very similar.

His conclusion is conditional. If a structural change in AI capabilities is affecting the labor market, the effect would not be temporary and could be a long-term shift. If the trend persists as they keep tracking it, he would read that as a sign AI is affecting work. He also points out a limit of the research: there is no clean experiment comparing a world with AI to a world without it, and more research is needed to isolate AI's impact properly.

Why young workers have lost their edge

Chandar's explanation for why young workers in particular are affected turns on the type of knowledge they bring to work. When young workers enter the labor market, much of what they do is implementation, meaning carrying out tasks based on what they learned in school. What they are not yet good at, because they lack experience, is work that depends on tacit knowledge.

He defines tacit knowledge as knowledge that depends on very local context, strategic thinking, social interaction, or things that can only be built up through actual work experience. This is the kind of knowledge that is rarely written down in books. The codified, book-learned knowledge that young workers rely on is where AI's capabilities overlap most directly. In that situation, Chandar suggests, experienced workers may hold a relative advantage both over AI and over young workers.

Why firms may underinvest in young talent

Chandar also discusses whether companies will keep training young workers. He says it is natural for firms to want to hire young people if they want to have middle managers and experienced staff in the future. The problem is that this motivation may not be strong enough. Young people don't have to stay with the company that trained them and can leave for another firm at any time. So firms may still hire some young workers, but fewer than would be in society's overall interest. Chandar describes this as a misalignment between the incentives of individual private firms and those of society as a whole.

His more optimistic view is that if AI really helps people learn and works well as an educational tool, the process of building experience could speed up. He adds that this would also require substantial changes to how education systems and universities are organized, so that people can learn better.

What AI won't do much better in the near term: physical work, strategy, and social interaction

Chandar names three areas where he thinks AI will not get much better in the short to medium term. The first is physical tasks, which are hard to perform without major advances in robotics. The second is strategic thinking and deciding what should be done. The third is social interaction.

He puts particular weight on strategic thinking and expects it to grow more important. His reasoning is that much future work will likely involve directing AI agents: telling them what to do, steering them, and guiding them as they carry out the work. The ability to state what should be done, or what outcome you want, becomes a key skill. He compares this to the role a manager plays in a company, and suggests that management-style work and giving strategic direction could become quite important capabilities.

His advice for young workers who want to build this capacity is to build and use tools as much as possible and become comfortable with that way of working. The faster people adapt to this change, he argues, the better they will handle labor market disruption and technological change.

Historical comparisons: the Luddites versus the 20th century

Chandar finds it helpful to compare AI with earlier technological shifts, and he points to two contrasting patterns. In the Industrial Revolution, he argues, the most skilled workers faced the greatest risk. His example is the Luddites, who were skilled weavers. Many of them lost their jobs because of the new inventions of the period, even though they were among the more skilled workers of their society. He sees a parallel in that knowledge workers and more highly educated workers may be more exposed to AI.

Electricity and the IT revolution in the 20th century, he says, largely ran the other way. Middle-skill and low-skill work tended to be more exposed to those technologies, and the most skilled and educated people benefited far more from them. Which of these two patterns AI will follow, he says, remains to be seen.

He flags one way AI may differ from past cases: how fast its capabilities are improving. AI today performs a much wider range of tasks than it did three years ago. When new work and new demand are created, a question follows that did not arise in the same way before: will humans do that new work, or will AI capabilities advance quickly enough that AI does it too? Chandar sees this as the point where AI may break from earlier technologies.

Augmentation versus automation

Chandar notes that there is a lot of discussion about using AI to assist workers and strengthen their capabilities, as opposed to replacing them and automating everything they do. In an essay he wrote, he aimed to propose one concrete solution that he believes could substantially assist workers: using AI as a tool to help people learn.

His example of someone already augmenting themselves with AI is the startup founder. The team is very small, but with access to AI it can get much more done. Founders can now handle functions they didn't previously know how to do, because AI tools make those functions accessible. He calls this a good example of augmentation.

He offers a simple test for whether you are being automated or augmented, and says it depends on what kind of work you focus on. Is the range of work you can do expanding, or is this technology shrinking your work? When technology benefits workers, he explains, it usually broadens the range of tasks they can do. Technology that automates or replaces workers removes some of their tasks, so they end up doing less. His goal is to find ways to augment workers so they can do more. He says the best way to do that historically has been education, because education lets workers do far more than they could before.

He then frames the present as an opportunity. He sees a chance for the biggest change in learning capability that we have experienced in 100 years or more, and he expects it to come from personalized learning with AI tools.

How Chandar uses AI in his own work, and where he doesn't

Chandar describes his own use of AI. He uses it most in mathematics. He finds AI very good at writing models and proofs, because reviewing the AI's output is much more efficient than writing everything from scratch. He counts this as an important aid to his work.

He hardly uses AI for writing. His reason is not that he distrusts AI's ability to write. It is that writing helps him think, and doing it himself helps him understand the problem better. If he writes without coming to understand the content, he says, much of the value of writing is lost.

Deciding what to delegate: the human role in "what to build"

From this he moves to a broader point. When we decide what to delegate to AI and what to keep in human hands, he says, the decision depends on what humans want. Part of it is a matter of values about right and wrong, and part is simply expressing our preferences. What do we want to build? What would make us better off and happier? What do we actually want to accomplish with AI? These are things we must communicate to AI.

Chandar says it is unclear to him how such tasks could be automated, at least in the short to medium term, because part of them depends on our own reflection. People have to think about what they truly want, and sometimes they only discover it by reflecting more deeply. For this reason he considers giving direction on what to build and implement to be more distinctively human than AI-like, in the short to medium term. He sees AI as closer to the execution and implementation side.

Two scenarios for inequality

Chandar then describes two scenarios with different implications for inequality. In the first, AI sharply reduces the advantage of having learned something new. If the barriers to reaching the top of a field or performing at the highest level in an occupation fall a great deal, because AI can handle many of the hardest tasks, labor market inequality could be much lower. The gap between people who learned a lot in school and are highly capable, and people who didn't try very hard in school, might not be very large. He finds it interesting that this implies a possible tradeoff between inequality and investment in learning.

In the second scenario, AI increases the advantage conferred by strategic thinking or social skills. Then working hard in school could become even more valuable, because anyone who can develop strategic thinking could be highly valuable in the labor market. Chandar does not say which scenario will prevail.

His advice to students is to use AI tools as much as possible, build things themselves, and focus on developing that strategic thinking. The questions he wants them to ask are how to use these tools well, where the tools still fall short, and where they as humans can add value.

Keeping critical thinking in the loop

Chandar acknowledges that AI's effects on how people think are very complex. He mentions a range of new educational interventions involving AI that are designed to keep people focused on critical thinking rather than simply handing off tasks. His example is Khan Academy, which has a feature that lets students use AI but does not give them the answer directly. Instead, the AI helps them work their way to the answer.

From career ladder to career lattice

Chandar ends with his vision. If we really harness AI's ability to support learning, he imagines a future where people can move between different occupations far more easily, as demand for those occupations shifts over time. If some occupation becomes much more economically important and we can find ways to help people move into it faster, he believes a great deal of potential could be unlocked.

He does not claim this outcome is assured; he presents it as a hope. In his words, he sincerely hopes we move away from a career ladder, which carries more risk from technological change, and toward something closer to a career lattice that better suits workers.