Distributional labor market effects of the United States Regional Greenhouse Gas Initiative

Key findings from this study

• The study found that unskilled workers in energy-intensive sectors experienced immediate wage declines following RGGI implementation, with effects peaking at approximately 7% reduction four years post-reform.
• The authors report that skilled workers in affected sectors showed no consistent wage effects, with most post-treatment estimates statistically insignificant.
• The researchers demonstrate that employment margins—including weeks worked and unemployment probability—exhibited no significant responses to the policy across any worker group.

Overview

This event study evaluates the Regional Greenhouse Gas Initiative's (RGGI) labor market effects across distributional outcomes. The analysis compares RGGI-implementing states with non-implementing states using Current Population Survey data spanning 2000–2020. The initiative, a carbon dioxide emissions trading program in northeastern and mid-Atlantic states, prompted examination of wage and employment consequences for different worker populations.

Methods and approach

The study employed an event-study design comparing labor market outcomes before and after RGGI implementation across treatment and control states. Data came from the Current Population Survey, covering two decades of observations. The analysis stratified workers by skill level and employment sector to isolate differential impacts.

Results

RGGI implementation generated immediate, substantial wage declines for unskilled workers in energy-intensive sectors. This negative effect expanded over time, reaching approximately 7% reduction four years post-reform. The magnitude and persistence of these wage effects distinguish the outcome for low-skill workers from patterns observed elsewhere in the labor market.

Skilled workers experienced less consistent wage effects, with point estimates occasionally negative but generally statistically insignificant across post-treatment periods. The analysis found no significant impacts on weeks worked or unemployment probability for any worker group. Workers in non-energy-intensive sectors exhibited no detectable labor market responses to the policy.

Implications

The results document concentrated distributional consequences of environmental regulation in labor markets. Unskilled workers in carbon-exposed industries bore measurable costs through sustained wage reductions, whereas skilled workers and broader employment margins absorbed minimal observable effects. This pattern suggests that wage adjustment mechanisms, rather than employment contraction, transmitted policy shocks to vulnerable worker populations.

The findings indicate that sector-specific and skill-based heterogeneity characterizes how labor markets respond to emissions regulations. Policymakers implementing similar environmental initiatives must account for differential impacts across worker demographics. The magnitude of wage effects for unskilled workers warrants consideration in policy design and complementary support mechanisms.

Scope and limitations

This summary is based on the study abstract and available metadata. It does not include a full analysis of the complete paper, supplementary materials, or underlying datasets unless explicitly stated. Findings should be interpreted in the context of the original publication.