Are labor unions good for workers and the economy?

This question has strong arguments on both sides — I'll gather the latest research on how unions affect workers and the broader economy.

Labor unions have both significant benefits and significant costs for workers and the economy — research is mixed and the net effect depends on industry, bargaining structure and how the union uses its power.

Benefits for workers

1. Higher pay and benefits: This is the most studied effect.

2. Workplace protections:

3. Spillover effects: Competition means workers at non-unionized firms see increased wages too and heightened workplace safety norms can pull up whole industries. Union members are also more likely to vote, donate to charity, and participate in civic life.

4. Reducing inequality: By encouraging egalitarian wage practices, unions serve to reduce race and gender wage gaps, and income inequality often feeds back into inequality of opportunity, which impedes growth. Research also shows unions not only raised the wage floor but also lowered the ceiling by moderating executive compensation.

Some research has indicated that labor unions improve productivity by providing training for workers, reducing turnover and improving labor-management communication. Other work finds unions can boost businesses' productivity by improving working environments and by giving experienced workers more input into decisions that design better and more cost-effective workplace procedures.

From the employer perspective, unions can result in lower employee turnover and better trained workforce and can improve workplace safety and therefore profitability.

Costs and risks for workers and the economy

1. Direct costs to workers and employers:

2. Critiques about competitiveness and efficiency:

Critics argue that unions make workplaces less competitive by raising labor costs and making it harder to fire underperformers, that they reduce employment by limiting the labor supply, and that they increase the cost of living by pushing employers to raise prices on goods and services to cover higher labor costs.

The cons of labor unions are also addressed as: decline in competitive advantage for American companies, corruption, potential decrease in productivity, possible reduction in employee motivation, and increased inefficiencies. Trade unions in competitive labor markets can have disadvantages, such as higher wages, reduced competitiveness, job losses, and limited productivity, and may impose restrictive work rules and regulations that can limit flexibility and hinder productivity.

3. Employment and investment effects:

A Mercatus Center synthesis of 147 studies and a Rust Belt case study found unions wielding monopoly privileges and fueling strikes and labor conflicts were responsible for 55 percent of the region's decline in US manufacturing employment.

4. Changing wage premium: 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. Some recent studies tracking plants where organizing drives succeeded vs. failed find forming a union does not raise workers' wages relative to plants that vote against unionizing in competitive markets.

Productivity effects are also mixed and tend to vary by sector. Other studies have found a negative union effect.

What does overall economy research say?

Bottom line

Research suggests moderate union power strikes a balance and that unions with more balanced and flexible structures allowing decentralized bargaining - as in Germany and the UK - avoid rigid monopoly structures and help sustain employment and encourage investment.

In short, unions are generally good for the workers they represent, but whether they are net good for the economy depends on whether they use bargaining power to improve productivity and share gains sustainably, or to create monopoly-style costs that reduce competitiveness.