Labor Economics
Minimum Wage
Government-mandated wage floor — debated employment effects
Minimum wage is a government-mandated minimum hourly wage. Federal US: $7.25/hour (2024; unchanged since 2009). Many states/cities higher. Goal: reduce poverty, support low-wage workers. Classical theory: above equilibrium → unemployment among low-skill workers. Empirical evidence: mixed; effects on employment often small (Card-Krueger 1994, others). Reasons: monopsony power; consumer demand; productivity adjustments. Debate: Some economists support (anti-poverty); others worry (job losses, automation). Trade-offs: wages vs employment, formal vs informal sector.
- US federal$7.25/hour (since 2009)
- Many states higherCalifornia ~$16; Washington ~$16
- Original federal$0.25 (1938, FLSA)
- GoalReduce poverty; support low-wage workers
- Classical theoryCauses unemployment if above equilibrium
- Empirical evidenceMixed; often modest employment effects
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Why minimum wage matters
- Labor economics. Major topic.
- Public policy. Frequently debated.
- Inequality. Anti-poverty tool.
- Politics. Recurring issue.
- Business decisions. Cost of labor.
- Policy design. Indexing, regional variation.
- Education. Labor market analysis.
Common misconceptions
- Always causes unemployment. Empirical evidence mixed.
- Always solves poverty. Many minimum wage workers in middle-income families.
- Federal hasn't risen. Inflation-adjusted: down significantly.
- Same effects everywhere. Local cost-of-living matters.
- Free market always best. Imperfect markets exist.
- Only affects minimum-wage workers. Spillover to slightly above.
Frequently asked questions
What's minimum wage?
Government-mandated minimum hourly wage. Below this: illegal to pay. US federal: $7.25/hour (since 2009; not adjusted for inflation). Many states/cities: higher (CA, NY, WA). EU countries: vary widely. Australia: ~$23 AUD. UK: ~£11. Originally aimed at: reducing poverty among low-wage workers, preventing exploitation.
What does classical theory predict?
If wage floor above equilibrium: shortage of demanded labor (companies want fewer workers); surplus of supply (more want to work). Result: unemployment, especially among low-skill workers. Higher wages for those employed; lost jobs for others. Trade-off: wages vs employment. Predicted by basic supply-demand model with competitive labor markets.
What did Card-Krueger find?
David Card and Alan Krueger (1994). Studied fast-food jobs in NJ vs PA after NJ raised minimum wage. Expected: fewer jobs in NJ. Found: similar or slightly more jobs. Surprised economists. Published in AER (top economics journal). Major impact: weakened consensus on negative employment effects. Card later won Nobel Prize (2021) partly for this work.
Why might it not cause unemployment?
Multiple explanations. (1) Monopsony power: employers have wage-setting power; minimum wage can offset. (2) Efficiency wages: higher wages → less turnover → maintained productivity. (3) Demand effect: workers spend on consumption; some companies benefit. (4) Productivity adjustments: workers and firms adapt. (5) Specific to low-wage industries with little price elasticity. Real effects: smaller than classical theory predicts in many cases.
What's the modern evidence?
Mixed. Recent metaanalyses find: modest employment effects, generally small for moderate increases. Larger increases may have larger effects. Localities raising significantly: still produce larger effects. Disagreement: economists still divided on effects. Most: modest minimum wages have small employment effects; large increases may be different.
How does it affect prices?
Some price increases. Companies pass costs to consumers (especially in services like restaurants). Customers may consume less. Distribution: progressive (poor benefit more from wages, higher prices affect everyone proportionally). Some studies: price effects modest. Specific to industries with high low-wage labor share.
What about $15/hour movement?
Major political movement. Many cities (Seattle, NYC, San Francisco, etc.) implemented $15/hour. Studies of effects. (1) Seattle: some employment impact in restaurants; others find modest. (2) Cities with high cost of living: less impact than expected. (3) Federal proposal: $15 federal minimum. Politically contentious. Complications: regional cost of living differences (NY $15 ≠ Mississippi $15).