Union density is associated with faster wage growth
Union density is associated with faster wage growth without a clear productivity penalty.
Union density is one of the clearest institutional predictors of faster wage growth and reduced wage inequality.
The claim
Union density matters because it changes bargaining power, not just paychecks.
The mechanism
Unions set floors, narrow wage dispersion, and push up nonunion pay through spillover effects.
The evidence
The wage effect is one of the most replicated findings in labor economics.
Who benefits
Workers, especially lower-wage workers and workers in weak labor markets.
The counter
The strongest counterargument is that unions can reduce flexibility in some settings. That risk exists, but it does not erase the wage effect.
References
Union wage and wage-compression literature.
Premise Assessment
Is the claim as stated true? Four dimensions, each 0–25, sum to 100. The verdict label is derived from this score. Full rubric →
Quality and quantity of direct evidence for or against the claim — RCTs, systematic reviews, natural experiments, large cohort studies.
Strong empirical evidence supports the claim.
Whether the proposed mechanism is valid and established — does the how make sense, or are there fundamental flaws in the causal logic?
Mechanism is well-established and validated.
Degree of agreement among domain experts and relevant scientific or policy bodies — depth and quality of consensus, not just majority opinion.
Mainstream expert agreement with the claim.
Whether findings hold across independent studies, populations, and contexts — resistance to p-hacking and publication bias.
Findings consistently replicate across studies.
Individual vs. Structural
How much of the outcome is explained by structural forces versus individual agency? Four dimensions, each 0–25. Higher scores indicate stronger structural causation. Full rubric →
Score component breakdown not yet available for this entry.