Are labor unions good for workers and the economy?

This is a contested question — I'll gather recent evidence on how unions affect workers and the broader economy.

Labor unions have both significant benefits and costs for workers and the economy, and research shows the net effect depends on how unions operate.

Benefits for Workers

The most studied benefit is the union wage premium. The U.S. Treasury Department's 2023 report, its most comprehensive review of unions, found:

> Unions raise the wages of their members by 10 to 15 percent. Unions also improve fringe benefits and workplace procedures such as retirement plans, workplace grievance policies, and predictable scheduling.

Other advantages widely recognized include:

Benefits are not limited to members. The Treasury found:

> Unionization also has spillover effects that extend well beyond union workers. Competition means workers at nonunionized firms see increased wages too.

Unions also:

> help create a fairer economy by benefiting all demographic groups. By encouraging egalitarian wage practices, unions serve to reduce race and gender wage gaps.

In public opinion surveys, larger shares of Americans say unions have positive effects, including increasing worker salaries and giving workers more power and job satisfaction, while advantages can include safer workplaces and better standards for all workers, reducing income inequalities and ensuring that workers receive a fair share of economic success, and economic stimulus by higher wages contributing to increase consumer spending

Benefits for the Economy

Proponents argue unions contribute to economic stability and growth:

Other research notes positive effects include:

Stable labor relations also reduce disruptions and uncertainty, encouraging investment, and unions contribute to growth by advocating for fair wages, improving worker productivity, and promoting stable labor relations

Some studies find unionized industries tend to have higher productivity and lower rates of labor turnover, suggesting that unions can contribute to a more stable and efficient workforce.

Costs and Negative Effects

Critics and economic analyses point to trade-offs:

For employers and the economy:

More broadly:
> excessive wage demands or frequent strikes can negatively impact economic growth

Other critiques argue:

> labor unions can contribute to economic stagnation by demanding wages and benefits that exceed what employers can afford
> Furthermore, labor unions can discourage innovation and productivity by protecting underperforming workers and resisting changes to work processes

A 2025 review of 147 studies by the Mercatus Center at George Mason University found that when unions use legally protected monopoly power to deliver big wins:

> companies respond to wage pressure by cutting research and development, reducing capital investment, slowing company growth, and ultimately shrinking job opportunities for unionized workers

Its Rust Belt case study concluded:

> Unions wielding monopoly privileges and fueling strikes and labor conflicts were responsible for 55 percent of the region's decline in US manufacturing employment

The same research notes that the historic union wage advantage has narrowed:

> Labor unions have historically secured higher wages for unionized workers. However, since the 1980s, the wage gap between unionized and non-unionized workers has narrowed due to competition and technological changes

Other common disadvantages for workers include paying union dues/fees, reduced workplace flexibility, and slower decision-making.

Bottom Line

Many economists therefore distinguish between how unions are structured: pluralistic, decentralized models with flexible bargaining (as in Germany and the UK) tend to sustain benefits while avoiding large monopoly costs, whereas highly adversarial monopoly-style unions are more likely to produce negative economic consequences.