Are unions a net win for workers and the economy? I'll dig into the latest research on wages, benefits, and growth effects.
Labor unions have both benefits and costs for workers and for the economy - research is mixed and depends on industry, type of union, and time horizon:
For Workers: Generally Positive, With Tradeoffs
Pros:
•Higher wages - the "union wage premium": The U.S. Treasury Department's 2023 report finds unions raise the wages of their members by 10 to 15 percent. Bureau of Labor Statistics comparisons find a similar effect: among full-time workers, union members earned 16% more per week on average than non-union workers in 2026. Simple comparisons find union workers typically make about 20 percent more than nonunion workers, though after controlling for similar workers the causal premium is around 10 to 15 percent.
•The Center for Economic and Policy Research finds unionization raises service sector workers' wages by over 10% – about $2.00 per hour.
•Better benefits and work environments: There is strong evidence that unions improve both fringe benefits and non-wage features of the workplace. Data from the Bureau of Labor Statistics show that 85 percent of unionized workers have access to paid sick leave, while only 62 percent of non-union workers have access. The Treasury fact sheet notes unions also improve fringe benefits and workplace procedures such as retirement plans, workplace grievance policies, and predictable scheduling.
•Reduced inequality and discrimination: Trade unions reduce wage inequality and unions serve to reduce race and gender wage gaps by encouraging egalitarian wage practices.
•Spillover benefits even for non-members: Each 1 percentage point increase in private-sector union membership rates translates to about a 0.3 percent increase in nonunion wages. Competition means workers at nonunionized firms see increased wages too.
Cons for workers:
•Union dues, potential loss of individual bargaining flexibility.
•Trade unions restrict employment flexibility and by standardizing wages across regions, unions distort labor supply.
•If the premium comes at the expense of normal profits, this can damage firms and employment growth - which can mean fewer job opportunities for workers who are denied job opportunities.
For The Economy: Disputed Among Economists
The Treasury Department released a first-of-its-kind report highlighting evidence that unions serve to strengthen the middle class and grow the economy at large. Proponents argue:
•Unions contribute to a more robust and resilient economy by raising middle-class incomes and financial stability.
•In addition to supporting the middle class, unions contribute to economic growth and resilience in part simply by reducing overall inequality. Reducing inequality can alleviate borrowing constraints, allowing workers to start businesses and build human capital.
•Positive spillovers that extend well beyond union workers include heightened workplace safety norms and civic engagement.
•Some research finds unions can boost businesses' productivity by improving working environments and by giving experienced workers more input into workplace procedures.
Critics and other economic studies find negative aggregate effects:
•Some unions win higher wages for their members, though many do not. But with these higher wages, unions bring less investment, fewer jobs, higher prices, and smaller 401(k) plans for everyone else.
•Lessons from Europe also show the long-term costs of powerful unions: slower growth and higher unemployment. While in the short run powerful unions have historically increased worker pay, they also harmed workers by contributing to conditions that impede employment growth, cut jobs, reduce investment, and sometimes even prompt firms to downsize or close.
•A recent Mercatus Center metaanalysis of 147 studies found overwhelmingly negative effects on employment, investment, productivity, firm survival, profit, research & development, resource allocation, and output.
•Lower profits and the union tax on asset returns leads to reduced investment and, subsequently, lower employment and productivity growth.
The overall effects of labor unions on the economy are disputed by economists.
Bottom line: For individual workers who are union members, unions are typically good - higher pay, better benefits, greater job security and voice at work. The largest gains are for low-wage and middle-wage workers. For the broader economy, unions tend to reduce inequality and boost consumer spending and middle-class stability, but can increase labor costs, reduce flexibility, and potentially reduce investment and job growth if wage premiums exceed productivity gains. Whether the net effect is positive depends on how unions bargain - when the premium comes from productivity growth, firms and workers benefit; when it comes at the expense of profits and investment, it can harm long-term growth.