Are labor unions good for workers and the economy?

I'll gather current evidence on how unions affect workers and the broader economy.

Labor unions have both significant benefits and costs for workers and for the broader economy. Research points to a mixed but generally positive effect for members, with spillover benefits and some trade-offs at the economy-wide level.

For Workers: Largely Positive

1. Higher wages - the union wage premium
Economists find union members make more than comparable non-union workers.
While simple comparisons show union workers make about 20 percent more, more rigorous methods that control for worker characteristics and compare workplaces that barely voted to unionize vs. barely failed find a causal premium of around 10 to 15 percent, with larger effects for longer-tenured workers. Other summaries put the figure at roughly 10 to 15 percent.

Raw Bureau of Labor Statistics data for 2025 showed median weekly wages of $1,404 for union members vs. $1,174 for nonunion workers, though those figures don't adjust for occupation or industry.

Pros vs cons summaries note unions:
Can bring increased pay and benefits
Make it easier to address problems with employers
But require dues and fees, in some cases even for workers who don't want to join
And can make promotion for younger workers more difficult due to unions' focus on seniority

2. Better benefits and working conditions
There is strong evidence that unions improve both fringe benefits and non-wage features of the workplace. Contracts frequently bundle in employer-sponsored health insurance and defined-benefit pension plans, and studies find unions raise the likelihood of being offered amenities like healthcare and retirement benefits.

Worker wellbeing is greatly affected by non-wage benefits like flexible scheduling or workplace safety regulations. Unions give workers a structured way to flag safety hazards without risking their jobs.

3. Greater job security and equality
Most union contracts require "just cause" for termination rather than at-will employment, resulting in much longer average tenure. Unions also promote within-firm equality by adopting explicit anti-discrimination measures and egalitarian wage-setting practices like single-rate or automatic progression structures.

Empirical studies have confirmed that unions have closed race and gender gaps within firms. Union membership is now roughly equal across men and women, with Black men having a particularly high representation rate at 13 percent compared to the population average of 10 percent.

4. Spillovers to non-union workers
The positive effects are not limited to union workers. Nonunion firms in competition with unionized workplaces may raise wages to attract workers.

Each 1 percentage point increase in private-sector union membership rates translates to about a 0.3 percent increase in nonunion wages, with larger effects for workers without a college degree. Research covering 1980-2010 found declining unionization accounted for roughly a third of the overall drop in average hourly wages, with about two-thirds of that coming from weakened spillover pressure on nonunion employers.

For the Economy: Benefits and Costs

Only about 10 percent of U.S. wage and salary workers belonged to a union in 2025, with another estimate putting the figure including covered non-members at about 11%, yet the economic footprint stretches well beyond dues-paying members.

Positive economic effects:

•Reduced inequality: Over the last century, union membership rates and income inequality have diverged - membership peaked at one-third of the workforce in the 1950s when inequality was near its lowest, then membership steadily declined while inequality steadily rose to 10 percent membership in 2022 while the top 1% earned almost 20 percent of total income. Unions negotiate pay floors that disproportionately benefit lower- and middle-wage workers.

•Consumer spending and stability: When workers earn more, they spend more - the strongest macroeconomic argument in favor of unions. Higher wages translate directly into household purchasing power that supports local businesses, creating a multiplier effect. Because union wages are locked in for 3-5 year contracts, consumer spending from unionized households holds relatively steady even when the broader economy contracts, providing a counter-cyclical buffer during downturns like 2008 and the pandemic.

•Lower turnover and civic engagement: Lower turnover is one of the clearest productivity gains - replacing a worker costs half to double annual salary, and union workers quit less often because of grievance procedures and predictable raises. For employers this can result in lower employee turnover and a better trained workforce. Unions may also produce benefits for communities - union members vote 12 percentage points more often than nonunion members.

The Treasury Department's first-of-its-kind report concluded unions serve to strengthen the middle class and grow the economy at large and that increased financial stability to those in the middle or bottom could allow workers to start businesses and build human capital, promoting economy-wide growth and resilience.

Negative or contested economic effects:

•Higher labor costs and prices: The effects cut both ways: unions compress the wage gap and stabilize spending, but they also increase labor costs in ways that can slow hiring and constrain business flexibility. They can increase labor costs that lead to employer becoming less competitive, such as by requiring pensions, and make it harder to promote and terminate workers.

Critics argue unions function as labor cartels that restrict the number of workers to drive up wages, just as OPEC attempts to cut oil supply to raise price, with companies passing higher wages to consumers through higher prices and often earning lower profits.

•Fewer jobs and less investment: This, along with functioning as labor cartels that seek to reduce job opportunities, causes unionized companies to lose jobs, with economists consistently finding unions decrease the number of jobs available in the economy. Research cited by critics argues unions effectively tax investments by negotiating higher wages and lowering profits, causing companies to reduce investment and become less competitive. Some research finds a one-percentage-point increase in state-level union membership is associated with about a quarter-point decrease in real GDP growth, though other economists argue this misses distributional benefits.

•Reduced flexibility: Unionized employers must negotiate over any changes in working conditions and often avoid making changes because benefits are not worth time and cost, making businesses less flexible. Seniority-based promotion systems and detailed work rules can slow management's ability to reassign staff.

Bottom Line

For individual workers who are members, the evidence for higher pay, better benefits, safer conditions, and stronger job protections is strong. For the economy as a whole, unions tend to reduce wage inequality, raise wages even for non-members, and provide consumer-spending stability, but they do so by raising labor costs, which can lead to higher consumer prices, reduced investment, fewer jobs in heavily unionized firms, and slower aggregate growth.

Whether that trade-off is "good" depends on values: unions probably slow aggregate GDP growth modestly while redirecting a larger share of that growth to workers, which is either a feature or a bug depending on what you think an economy is for.

Citations (4)

1treasury.govGovernment
Labor Unions and the U.S. Economy
Backs: “Higher wages - the union wage premium. Economists find union members make more than comparable non-union workers.”
2legalclarity.orgCommercial content
How Do Labor Unions Affect the Economy: Pros and Cons
Backs: “barely failed find a causal premium of around 10 to 15 percent, with larger effects for longer-tenured workers.”
3fool.comCommercial contentquality 0.84
What Is a Workers Union?
Backs: “$1,174 for nonunion workers, though those figures don't adjust for occupation or industry.”
4heritage.orgNonprofits and think tanks
What Unions Do: How Labor Unions Affect Jobs and the Economy
Backs: “They can increase labor costs that lead to employer becoming less competitive, such as by requiring pensions, and make it harder to promote and terminate workers. Critics argue unions function as labor cartels that restrict the number of workers to drive up wages, just as OPEC attempts to cut oil supply to raise…”