Are labor unions good for workers and the economy?
Heritage Foundation says unions cause job losses, while a cited narrow-vote study and the Treasury/CAP/Conversation sources find no job loss or no productivity harm.
Are Labor Unions Good for Workers and the Economy?
The economic evidence points to genuine, well-documented benefits for workers, alongside real trade-offs that vary by context. There's no single "correct" answer — it depends on which effects you weigh most heavily. Here's what the research shows:
Benefits for Workers
Higher wages. The "union wage premium" is one of the most consistently documented findings in labor economics. After controlling for factors such as race, gender, age, occupation, and education, among others, the union wage premium for all workers is 10 percent. Over a career, this adds up: the average male worker will earn $1.3 million more over a lifetime if they have consistently been a member of a union.
Better benefits and working conditions. There is strong evidence that unions improve both fringe benefits and non-wage features of the workplace, with union workers much more likely to be offered certain amenities than nonunion workers. The Treasury Department notes unions raise the wages of their members by 10% to 15%, and "improve fringe benefits and workplace procedures such as retirement plans, workplace grievance policies, and predictable scheduling."
Reducing inequality along demographic lines. Empirical studies have confirmed that unions have closed race and gender gaps within firms — for example, the wage gap between Black and white women was significantly reduced due to union measures. Similarly, collective bargaining has reduced gender wage gaps amongst teachers.
Spillover effects for non-union workers. The positive effects of unions are not limited to union workers — nonunionized firms in competition with unionized workplaces may raise wages, change hiring practices, or improve workplace environment to attract workers. Research also finds unions are a bulwark against wage theft, as states with higher union membership are more likely to pass laws against wage theft, which disproportionately affects low-wage, minority, female, and immigrant workers.
Effects on the Broader Economy
Reduced inequality can boost growth. Numerous studies have found that unions spur the economy by reducing income inequality. One economic logic: inequality harms overall growth by putting money in the hands of wealthy people who tend to save it, rather than lower- and middle-income people who spend it on necessities and thus stimulate demand. Some economists argue the decline of unions over past decades may have contributed to slower economic growth — "secular stagnation."
Productivity: mixed but largely not negative. The most authoritative meta-analysis comes from Richard Freeman and colleagues, who surveyed the global evidence from more than 300 studies and found unions do not, overall, reduce productivity. More specifically, evidence shows unions actually lead to higher productivity in some sectors, such as education and construction, while making no overall difference on productivity in sectors like manufacturing. Part of the mechanism is worker voice: unions give employees avenues to express wage and benefit preferences and to notify managers about inefficiencies within company policies and the production process.
But profits typically fall. 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.
The Counterarguments
Not all research is favorable. Critics point to several costs:
Job growth effects. Some studies find unionization slows the rate of employment growth in workplaces — a finding some economists call the "one constant" in the empirical union literature, consistent with employers setting employment levels conditional on the bargained wage. Heritage Foundation research argues more strongly that unions cause job losses, not merely correlate with firms that already have more layoffs. However, this is contested — a prominent study comparing workers who voted narrowly for unionizing with those who voted narrowly against found newly organized companies were no more likely to shed jobs, though wages didn't rise either in that specific comparison.
Reduced investment. One older firm-level study found a 50 percent increase in unionization decreases R&D spending by 18-25%, annual sales growth by 1-4%, employment growth by 3-6%, and profits by 8-20%.
Diminishing returns with excessive bargaining power. More recent analysis suggests excessive union demands can limit job growth — when unions press for unsustainable terms, this can backfire into slower employment growth and fewer opportunities for the very workers they represent. This same research notes companies facing such pressure often cut investments, particularly in R&D and long-term capital, reducing productivity and profitability.
Bottom Line
The weight of empirical evidence favors unions producing net benefits for individual workers (higher wages, better benefits, more equity) and largely neutral-to-positive effects on economy-wide productivity, without the widely feared decimation of jobs or firm viability. The costs tend to concentrate on profits (which fall) and, in cases of excessive bargaining power, on investment and job growth at the margin. Whether unions are "good for the economy" overall often depends on values — how much weight you place on worker wellbeing and equality versus corporate profit margins and firm-level flexibility — as well as on the specific context (sector, country, and how much bargaining leverage unions actually hold).
Citations (21)
- 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: Union wage premium for all workers is 10 percent after controlling for race, gender, age, occupation, education.
- How Unions Can Increase Firm Productivity and Strengthen Economic Growth | WorkRise
Source excerpt: “Over the course of a lifetime, the average male worker will earn $1.3 million more if they have consistently been a member of a union. ”
statistic, article, points to yes. Claim: Average male union member earns $1.3 million more over a lifetime.
- Labor Unions and the U.S. Economy | U.S. Department of the Treasury
Source excerpt: “There is strong evidence that unions improve both fringe benefits and non-wage features of the workplace. Figure 3 shows how much more likely it is fo...”
evidence, article, points to yes. Claim: Strong evidence unions improve fringe benefits and non-wage workplace features; union workers more likely offered amenities.
- 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...”
attribution, article, points to yes. Claim: Treasury says unions raise members' wages 10-15% and improve fringe benefits and workplace procedures.
- Labor Unions and the U.S. Economy | U.S. Department of the Treasury
Source excerpt: “Empirical studies have confirmed that unions have, indeed, closed race and gender gaps within firms. For example, one study finds that the wage gap be...”
evidence, article, points to yes. Claim: Unions have closed race and gender gaps within firms, e.g., Black-white women wage gap.
- Labor Unions and the U.S. Economy | U.S. Department of the Treasury
Source excerpt: “[12] Another study provides evidence of how collective bargaining has reduced gender wage gaps amongst teachers.”
evidence, article, points to yes. Claim: Collective bargaining has reduced gender wage gaps among teachers.
- Labor Unions and the U.S. Economy | U.S. Department of the Treasury
Source excerpt: “[13] The positive effects of unions are not limited to union workers. Nonunionized firms in competition with unionized workplaces may choose to raise ...”
evidence, article, points to yes. Claim: Nonunion firms competing with union workplaces may raise wages or improve conditions.
- What recent research says about the benefits of labor strikes and growing worker power for broader U.S. economic growth - Equitable Growth
Source excerpt: “A study from University of Illinois at Urbana-Champaign’s Marc Doussard and Ahmad Gamal suggests that unions are a bulwark against wage theft. The aut...”
evidence, article, points to yes. Claim: Unions are a bulwark against wage theft; higher-membership states more likely to pass anti-wage-theft laws.
- How Unions Work for the Economy
Source excerpt: “Numerous studies have found that unions spur the economy by reducing income inequality. Lawrence Summers, the former secretary of the treasury and for...”
evidence, article, points to yes. Claim: Numerous studies find unions spur the economy by reducing income inequality.
- How Unions Work for the Economy
Source excerpt: “Inequality harms overall economic growth by putting more money into the hands of the very wealthy, who tend to save that money, and less money into th...”
evidence, article, points to yes. Claim: Inequality harms growth by shifting money to wealthy savers rather than lower-income spenders.
- How Unions Work for the Economy
Source excerpt: “In fact, research has shown that the decline of unions over the past few decades may have contributed to slower economic growth and what is called “se...”
evidence, article, points to yes. Claim: Decline of unions may have contributed to slower growth and secular stagnation.
- 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: Meta-analysis of 300+ studies finds unions do not overall reduce productivity but do hurt profits.
- How Unions Work for the Economy
Source excerpt: “· Despite the myth that unions reduce productivity, evidence shows that they actually lead to higher productivity in some sectors, such as education a...”
evidence, article, points to yes. Claim: Unions lead to higher productivity in some sectors such as education and construction.
- 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 voice to express preferences and flag inefficiencies, aiding productivity.
- 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 revenues with workers.
- Union Density Effects on Productivity and Wages | The Economic Journal | Oxford Academic
Source excerpt: “Unionisation also slows the rate of employment growth in workplaces. This finding, which Addison and Belfield (2004) termed the ‘one constant’ in the ...”
evidence, article, points to no. Claim: Unionisation slows employment growth in workplaces, the 'one constant' in the union literature.
- What Unions Do: How Labor Unions Affect Jobs and the Economy | The Heritage Foundation
Source excerpt: “The balance of economic research shows that unions do not just happen to organize firms with more layoffs and less job growth: They cause job losses. ”
attribution, article, points to no. Claim: Heritage argues unions cause job losses rather than merely correlating with firms with more layoffs.
- What Unions Do: How Labor Unions Affect Jobs and the Economy | The Heritage Foundation
Source excerpt: “[32] One prominent study comparing workers who voted narrowly for unionizing with those who voted narrowly against unionizing came to the opposite con...”
evidence, article, points to yes. Claim: Narrow-vote comparison found newly unionized firms were no more likely to shed jobs, though wages didn't rise.
- What Unions Do: How Labor Unions Affect Jobs and the Economy | The Heritage Foundation
Source excerpt: “Finds that a 50 percent increase in the ratio of union employees to total employees at a firm decreases R&D spending by 18 percent to 25 percent, decr...”
statistic, article, points to no. Claim: 50% rise in unionization decreases R&D 18-25%, sales growth 1-4%, employment growth 3-6%, profits 8-20%.
- Do More Powerful Unions Generate Better Pro-Worker Outcomes? | Mercatus Center
Source excerpt: “Excessive union demands limit job growth and work opportunities. Union power doesn’t just boost wages indefinitely; in fact, when unions press for uns...”
evidence, article, points to no. Claim: Excessive union demands can limit job growth and work opportunities.
- Do More Powerful Unions Generate Better Pro-Worker Outcomes? | Mercatus Center
Source excerpt: “Companies facing excessive union demands often cut investments—particularly in R&D and long-term capital—reducing productivity and profitability.”
evidence, article, points to no. Claim: Companies facing excessive union demands cut investment in R&D and capital, reducing productivity and profitability.