Are labor unions good for workers and the economy?
Pro-union sources (CAP, Treasury, EPI, WorkRise) find unions raise wages and productivity, while Heritage and Mercatus argue union monopoly power acts as a cartel and can harm workers and the economy.
Are Labor Unions Good for Workers and the Economy?
This is a genuinely contested question among economists, with substantial evidence on multiple sides. Here's a balanced look at the research:
The Case That Unions Benefit Workers
Higher wages and benefits. The evidence for a "union wage premium" is strong and consistent. Research has consistently demonstrated that unions raise wages for various types of workers, and after controlling for factors such as race, gender, age, occupation, and education, the union wage premium for all workers is 10 percent. The U.S. Treasury Department's analysis found similar magnitude effects, noting that unions raise the wages of their members by 10% to 15%, and they "improve fringe benefits and workplace procedures such as retirement plans, workplace grievance policies, and predictable scheduling."
Better non-wage conditions. Beyond pay, union workers have greater access to critical fringe benefits such as retirement, medical benefits, and life insurance, and unions impact personnel practices by bringing about better workplace grievance systems and improved workplace safety.
Spillover effects on non-union workers. Even people who aren't in unions can benefit. Unionization has spillover effects—competition means workers at nonunionized firms may see increased wages too, and heightened workplace safety norms can pull up whole industries.
Reducing inequality. Research finds that unions fuel equality—today's unions benefit all demographic groups, and unions reduce race and gender wage gaps by encouraging explicit anti-discrimination measures and egalitarian wage practices. Historically, the era when unions were strongest, from 1945 to 1980, was the one period in modern American history when income inequality actually declined—economists call it "the Great Compression." Since 1980, as union membership rapidly declined, income inequality has steadily grown.
The Case That Unions Help the Broader Economy
Productivity effects are more positive than commonly assumed. A landmark survey addressed the common claim that unions hurt efficiency. The global evidence from more than 300 studies on the economic impact of unionisation shows unions do not, overall, reduce productivity. In the U.S. specifically, unions generally have a positive impact on productivity, and this effect is particularly strong among manufacturing firms. Part of the mechanism is voice: this positive relationship is helped by unions giving employees methods to express their opinions—often as avenues for wage and benefit preferences, but also allowing employees to notify managers about inefficiencies in company policies and production processes.
Correcting labor market power imbalances. Some economists argue unions counteract "monopsony" power that employers hold. Mounting evidence shows a pervasive lack of competition across the labor market that leads to suboptimal wage and employment levels—a phenomenon known as monopsony, resulting from corporate concentration and constraints on worker mobility. In this framework, unions are seen as critical to ensuring competitive market outcomes, since collective action can improve social welfare, with higher wages and higher employment resulting from more competitive-like outcomes.
State-level correlations. Recent EPI analysis found that in high-union-density states, 2023 median household income was on average more than $12,000 higher than in low-union-density states, alongside better unemployment insurance and health coverage rates.
The Case That Unions Harm Efficiency/Growth
Reduced firm profits and potential job losses. Even researchers sympathetic to unions acknowledge trade-offs. Studies have found that unionization often hurts corporate profitability by forcing companies to share more of their revenues with workers in the form of increased wages and benefits. More critical analyses argue further that unions can act as labor cartels: Unions function as labor cartels, restricting the number of workers in a company or industry to drive up the remaining workers' wages.
Monopoly power can backfire even for members. More recent skeptical research suggests union power itself isn't automatically good for workers. Union power does not always benefit workers—while powerful unions with monopolistic characteristics can achieve significant gains at the bargaining table, these victories often come with trade-offs that can negatively impact unionized workers and the economy. This research points to specific modern examples: in 2024 the International Longshoremen Association, the only union controlling all major 36 ports on the East and Gulf Coasts, made demands on a "total ban of automation," threatening to "cripple the economy."
Wage premiums can come at the expense of profits/growth. International labor economics research offers a nuanced middle ground: society and firms can benefit when the union wage premium is the result of productivity growth; however, if raised wages come at the expense of normal profits, this can damage the prospects of firms and employment growth—to the long-term detriment of all.
Bottom Line
The consensus among mainstream labor economists (including Harvard's Richard Freeman, whose survey of 300+ studies is often cited as the seminal work) leans toward unions being net positive for workers — raising wages, improving benefits, and reducing inequality — without significantly harming overall productivity, though they do tend to reduce corporate profit margins. The more skeptical view, associated with free-market think tanks like Heritage and Mercatus, argues that union monopoly power can reduce employment, distort investment, and produce worse long-term outcomes than more flexible, cooperative labor-relations models.
In short: it depends heavily on context — the specific industry, the degree of union bargaining power, whether wage gains track productivity gains, and whether you're measuring effects on union members, non-union workers, consumers, or firm owners. There's little serious dispute that unions raise member wages; the sharper disagreement is over the economy-wide costs and benefits.
Citations (18)
- 4 Ways Unions Make Our Economy and Democracy Stronger - Center for American Progress
Source excerpt: “Research has consistently demonstrated that unions raise wages for various types of workers. New data on 2023 workers from the “earner study” portion ...”
evidence, article, points to yes. Claim: Research has consistently demonstrated that unions raise wages for various types of workers.
- 4 Ways Unions Make Our Economy and Democracy Stronger - Center for American Progress
Source excerpt: “After controlling for factors such as race, gender, age, occupation, and education, among others, the union wage premium for all workers is 10 percent...”
statistic, article, points to yes. Claim: After controlling for race, gender, age, occupation and education, the union wage premium for all workers is 10 percent.
- U.S. Treasury Department: nation’s economy would benefit from stronger labor unions | American Federation of State, County and Municipal Employees (AFSCME)
Source excerpt: “The Treasury report, too, emphasizes that unions raise the wages of their members by 10% to 15%, and they “improve fringe benefits and workplace proce...”
statistic, article, points to yes. Claim: Treasury analysis found unions raise members' wages by 10% to 15% and improve fringe benefits and workplace procedures.
- Secretary Statements & Remarks
Source excerpt: “We also observe that union workers have greater access to critical fringe benefits, such as retirement benefits, medical benefits, and life insurance....”
evidence, official document, points to yes. Claim: Union workers have greater access to fringe benefits such as retirement, medical benefits and life insurance.
- Secretary Statements & Remarks
Source excerpt: “Unionization also has spillover effects. Competition means workers at nonunionized firms may see increased wages too. Heightened workplace safety norm...”
evidence, official document, points to yes. Claim: Unionization has spillover effects: nonunion firms may raise wages and safety norms spread across industries.
- Secretary Statements & Remarks
Source excerpt: “Importantly, our research also finds that unions fuel equality. Today’s unions benefit all demographic groups. Unions reduce race and gender wage gaps...”
evidence, official document, points to yes. Claim: Unions reduce inequality and race and gender wage gaps, benefiting all demographic groups.
- How Unions Work for the Economy
Source excerpt: “Freeman and his coauthors found that in the United States, unionization appears to be associated with higher productivity in the education and constru...”
evidence, article, points to yes. Claim: Freeman and coauthors found unionization associated with higher productivity in US education and construction, notably manufacturing.
- Unions do hurt profits, but not productivity, and they remain a bulwark against a widening wealth gap
Source excerpt: “The global evidence from more than 300 studies on the economic impact of unionisation shows unions do not, overall, reduce productivity. ”
evidence, article, points to yes. Claim: Evidence from more than 300 studies shows unions do not, overall, reduce productivity.
- How Unions Can Increase Firm Productivity and Strengthen Economic Growth | WorkRise
Source excerpt: “In the United States, unions generally have a positive impact on productivity, and this effect is particularly strong among manufacturing firms. ”
evidence, article, points to yes. Claim: In the US, unions generally have a positive impact on productivity, especially in manufacturing.
- How Unions Can Increase Firm Productivity and Strengthen Economic Growth | WorkRise
Source excerpt: “In part, this positive relationship is helped by unions giving employees methods to express their opinions. Often, they are avenues for workers to exp...”
evidence, article, points to yes. Claim: Unions give employees a voice to express preferences and flag inefficiencies, aiding productivity.
- How Unions Can Increase Firm Productivity and Strengthen Economic Growth | WorkRise
Source excerpt: “Mounting evidence has shown there is a pervasive lack of competition across the labor market that leads to suboptimal wage and employment levels. This...”
evidence, article, points to yes. Claim: Pervasive lack of labor market competition (monopsony) leads to suboptimal wages and employment.
- How Unions Can Increase Firm Productivity and Strengthen Economic Growth | WorkRise
Source excerpt: “While competition policy, such as antitrust enforcement, offers partial solutions, evidence also suggests that unions are critical components of ensur...”
evidence, article, points to yes. Claim: Unions are critical to ensuring competitive market outcomes, improving social welfare with higher wages and employment.
- Unions aren’t just good for workers—they also benefit communities and democracy
Source excerpt: “In high-union-density states, 2023 median household income was on average more than $12,000 higher than in low-union-density states. ”
statistic, article, points to yes. Claim: In high-union-density states, 2023 median household income was over $12,000 higher than in low-density states.
- How Unions Work for the Economy
Source excerpt: “(Studies have found, however, that unionization often hurts corporate profitability by forcing companies to share more of their revenues with their wo...”
evidence, article, points to no. Claim: Unionization often hurts corporate profitability by forcing firms to share more revenue with workers.
- What Unions Do: How Labor Unions Affect Jobs and the Economy | The Heritage Foundation
Source excerpt: “Unions function as labor cartels, restricting the number of workers in a company or industry to drive up the remaining workers' wages. ”
attribution, article, points to no. Claim: Heritage argues unions function as labor cartels, restricting workers to drive up remaining workers' wages.
- Do More Powerful Unions Generate Better Pro-Worker Outcomes? | Mercatus Center
Source excerpt: “The following key points summarize the main findings of this paper: Union power does not always benefit workers. Research shows that while powerful un...”
evidence, official document, points to no. Claim: Mercatus finds union power does not always benefit workers; monopolistic unions' gains bring trade-offs harming workers and economy.
- Do More Powerful Unions Generate Better Pro-Worker Outcomes? | Mercatus Center
Source excerpt: “In 2024 the International Longshoremen Association (ILA), the only labor union controlling all major 36 ports on the East and Gulf Coasts, made demand...”
evidence, official document, points to no. Claim: In 2024 the ILA demanded a total ban on automation, threatening to cripple the economy.
- Union wage effects - IZA World of Labor
Source excerpt: “Society and firms can benefit when the union wage premium is the result of productivity growth. However, if raised wages come at the expense of normal...”
evidence, reference entry, neutral. Claim: Union wage premiums benefit firms when tied to productivity growth but can harm firms and employment if they cut into normal profits.