Bryan Caplan’s Case Against Education: Signaling vs. Skills

Economist Bryan Caplan has become one of the most prominent critics of modern schooling, arguing that much of the education system is an expensive way to prove traits to employers rather than a practical way to build useful skills. His perspective forces a fundamental question: what is education really doing—for students, for workers, and for society?

The Core Claim: Education as a Costly Signal

Caplan’s starting point is a distinction from labor economics between two views of education:

• Human capital view: Schooling raises productivity by teaching knowledge and skills that make people better workers.
• Signaling view: Schooling mostly certifies traits—such as intelligence, work ethic, and conformity—that workers already have, allowing them to stand out to employers.

Caplan accepts that education creates some human capital, but he argues that a large share of the income boost from extra schooling comes from signaling rather than genuine skill-building.

Why Degrees Pay Off Even When Content Seems Irrelevant

Many students notice an odd pattern: courses feel abstract or unrelated to actual jobs, yet degrees consistently raise earnings on average. Caplan explains this through signaling:

• Completing a degree shows you can stick with a long, demanding process.
• Grades and transcripts reflect organization, reliability, and the ability to meet deadlines.
• Finishing difficult but impractical classes suggests cognitive ability and willingness to follow rules.

Under this view, even “chaff” in the curriculum—material no one uses later—can still pay, because it is part of the costly test that separates students who can endure the process from those who cannot.

Individual vs Social Payoffs: Why the System Can Be Wasteful

Caplan emphasizes a crucial difference between what is best for an individual and what is best for society.

• Individually, it often makes sense to pursue more education because you are competing against other workers in a credential-focused labor market.
• Socially, if everyone lengthens their schooling just to keep the same relative position, society may spend more money and time without much net gain in productivity.

This is sometimes compared to people standing up at a concert: the first person gets a better view, but if everyone stands, the crowd is no better off and everyone is less comfortable.

Credential Inflation and the Rising Education Arms Race

Many jobs that once required only a high school diploma now expect a bachelor’s degree, and roles that previously needed a BA increasingly ask for a master’s. Economists and policy groups have documented a long-term rise in educational attainment in wealthy countries, even as job tasks have not always become equally demanding.

Caplan calls this process credential inflation and sees it as a symptom of signaling-driven competition: employers use degrees to screen because they are an easy, legally safe filter; students respond by accumulating more credentials to stay competitive.

Elementary School vs University: Where Is Learning Most Real?

Caplan does not reject all schooling. He tends to draw sharper contrasts between levels of education:

• Early education: Basic literacy, numeracy, and social skills are widely used in life and work. There is stronger evidence that additional years of early schooling raise cognitive skills and later earnings, at least up to a point.
• Later secondary and tertiary education: Many courses are specialized, theoretical, or quickly forgotten. The gap between what’s taught and what most workers use becomes larger.

Empirical research from labor economics finds that additional years of schooling do increase earnings on average, but debates continue about how much of that effect is causal skill-building versus selection and signaling.

Education, Inequality, and the Disadvantaged

A common concern is that cutting back on education spending would hurt disadvantaged students most. Caplan’s reply is nuanced but controversial:

• He agrees that talented low-income students can gain a lot from access to education, especially when they lack other ways to signal ability.
• He questions whether across-the-board subsidies are the best way to help the average student from a low-income background, if much of education spending feeds the credential race rather than real learning.

Critics counter that underfunded systems typically fail disadvantaged students worse, suggesting that the problem is too little investment in quality and support, not too much spending overall.

What Skills Really Matter in the Labor Market?

Caplan’s view encourages asking which skills employers genuinely use and reward. Studies of job requirements and workplace surveys highlight recurring themes:

• Core competencies: literacy, numeracy, and basic analytical reasoning.
• Non-cognitive traits: persistence, dependability, teamwork, and self-control.
• Job-specific skills: technical knowledge, tools, and protocols used in particular roles.

Caplan argues that schools often emphasize broad academic coverage at the expense of practical and vocational abilities, while the labor market mostly wants a narrower set of robust general skills plus focused training.

Alternative Pathways: Vocational Training and On-the-Job Learning

Because he sees much traditional schooling as wasteful signaling, Caplan favors shifting resources toward more direct career preparation.

Potential alternatives include:

• Vocational and technical education: programs linked closely to specific trades or industries.
• Apprenticeships: structured on-the-job training where workers learn while contributing to production.
• Employer-led certification: tests or portfolios designed by firms or industry groups to prove relevant skills.

OECD and other international organizations have documented strong labor-market outcomes for well-designed vocational systems in some countries, especially where employers participate actively in training design and evaluation.

Political and Civic Effects of Schooling

Beyond economics, governments often justify education on the grounds that it produces informed, engaged citizens. Research generally finds that higher levels of schooling correlate with greater political participation and civic involvement, though the mechanisms are debated.

Caplan is skeptical that the political effects of education justify large public subsidies. He stresses that more schooling does not guarantee more accurate beliefs about policy, and that citizens frequently hold mistaken views on complex economic and social issues despite high educational attainment.

Counterarguments: The Case Against Caplan’s Case

Critics of Caplan raise several challenges:

• Underestimating learning: They argue that he places too much weight on what students remember on tests and too little on deeper changes in thinking, numeracy, and communication that persist.
• Ignoring heterogeneity: Some institutions and fields (for example, engineering, medicine, or high-quality community colleges) may deliver substantial human capital, even if others do not.
• Misdiagnosing failure: Poor learning outcomes in some systems might result from underinvestment, large class sizes, or inadequate support, not from inherent futility of schooling.

Others argue that the non-economic functions of education—building shared culture, social networks, and a common civic baseline—are more important than Caplan acknowledges.

Reform Ideas: If Caplan Is Partly Right, What Should Change?

One need not accept Caplan’s most radical proposals to take his concerns seriously. Several reform directions can be discussed without fully embracing or rejecting his thesis:

• Refocus curricula on high-yield skills: literacy, numeracy, clear writing, basic statistics, and digital skills.
• Strengthen vocational routes for students who prefer hands-on learning and direct workforce entry.
• Experiment with alternative credentials such as standardized skill assessments, portfolios, or micro-credentials that complement or substitute for traditional degrees.
• Align funding with demonstrated learning outcomes and labor-market results, while guarding against test-score narrowness.

Some universities and training providers are already experimenting with competency-based education and partnerships with employers to ensure programs translate into real capabilities.

Practical Takeaways for Students and Families

Whatever one thinks of Caplan’s broader policy recommendations, his analysis suggests several practical questions for individuals considering education choices:

• How strong is the evidence that this program builds skills directly useful for my goals?
• Is the credential recognized and valued in my preferred job market?
• Are there shorter or more targeted pathways (certificates, apprenticeships, community college) that deliver similar or better outcomes?
• Am I mainly buying a signal, and if so, is the cost worth it given my alternatives?

For some careers—such as medicine, law, or teaching—formal degrees are legally required. Even if parts of the curriculum are inefficient, opting out is often not realistic. In such cases, Caplan’s work mainly serves as a prompt to advocate for better, more focused training rather than to abandon education entirely.

Frequently Asked Questions (FAQs)

Does Caplan think we should abolish education?

No. He believes early education and some forms of higher education deliver real value, but he argues that we overspend on long, general academic pathways that mostly function as signals rather than true skill-building.

If education is partly signaling, does that mean it has no benefits?

Signaling can be individually beneficial because it helps employers identify reliable, capable workers. Caplan’s concern is that when everyone invests more in signaling, the social payoff may be small compared with the time and money consumed.

How does signaling differ from selection?

Selection means schools admit people who already have desirable traits. Signaling adds that going through the program itself is a costly way to demonstrate those traits, because graduation requires sustained effort, compliance, and performance.

Are vocational programs always better than academic degrees?

Not necessarily. The value of vocational versus academic routes depends on program quality, labor-market demand, and individual preferences. High-quality vocational systems in some countries show strong outcomes, but poorly designed programs can trap students in narrow, low-return tracks.

What evidence supports or challenges Caplan’s views?

Labor economists use tools like twin studies, policy changes, and natural experiments to estimate the causal impact of education on earnings and skills. While evidence clearly shows that more schooling is associated with higher income, researchers continue to debate how much of this comes from human capital versus signaling and selection.

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Medha Deb

Medha Deb is an editor with a master's degree in Applied Linguistics from the University of Hyderabad. She believes that her qualification has helped her develop a deep understanding of language and its application in various contexts. Medha specializes in the areas of beauty, health, sports, and wellness and is committed to ensuring that the content on the website is…