The Gender Pay Gap Explained: Raw vs. Adjusted, Causes, and Fixes

Raw vs. Adjusted: Two Numbers That Get Confused

Almost every heated argument about the gender pay gap is really two different statistics talking past each other. The raw (or unadjusted) gap compares the median earnings of all women to all men, without controlling for role, hours, industry, or experience — commonly cited around women earning roughly 82–84 cents per male dollar. The adjusted gap compares men and women in the same job, at the same level, with the same experience, and shrinks to a much smaller but persistent figure.

Both numbers are real and both matter; they just answer different questions. The raw gap measures the overall economic difference in what men and women earn, driven heavily by occupational sorting and hours. The adjusted gap isolates 'unexplained' pay differences for genuinely comparable work — the portion most likely attributable to bias or negotiation dynamics. Serious discussion requires naming which one you mean.

What Actually Drives the Gap

The raw gap has several well-documented contributors, and understanding them points to different remedies than a single 'discrimination' explanation would.

• Occupational segregation: women are overrepresented in lower-paying fields and underrepresented in higher-paying ones.
• The motherhood penalty: women's earnings often drop after having children while men's do not, reflecting caregiving load and career interruptions.
• Hours and part-time work: differences in hours worked account for part of the raw gap.
• Vertical segregation: fewer women in the highest-paid senior and executive roles.
• Negotiation and starting-salary dynamics: differences that compound over a career.
• The residual, unexplained portion — the adjusted gap — consistent with bias in pay-setting.

Why Small Gaps Compound Into Large Ones

A gap that looks modest in a single year becomes enormous over a career, because pay is cumulative. A lower starting salary means every future percentage raise is applied to a smaller base, every bonus computed from a lower number, and every next-job offer anchored to a lower prior salary. A few percentage points at 25 can translate to hundreds of thousands of dollars by retirement, plus reduced Social Security and retirement savings.

What Individuals Can Do

While the gap is a structural problem that individuals didn't create and can't solve alone, there are concrete moves that protect you. The most powerful is information: knowing the market rate and the posted range for your role removes the guesswork that disadvantages anyone negotiating blind.

1. Research market pay and use posted ranges as an anchor, not your prior salary.
2. Negotiate every offer and raise — the gap is partly a negotiation-frequency gap.
3. Discuss pay with trusted colleagues; your legal right to do so is a key tool for spotting inequity.
4. Document your accomplishments so raise and promotion cases rest on evidence, not advocacy.
5. Know your compa-ratio and request a market adjustment if you're below the band midpoint for your level.

What Employers Can Do

The adjusted gap is largely fixable at the organizational level, and the employers who've closed it did so with process, not slogans. Structured pay bands remove ad-hoc discretion; regular pay-equity audits catch unexplained gaps and correct them; and transparency in ranges keeps offers honest before they're made rather than litigated afterward.

Removing salary-history questions, standardizing starting offers within bands, training managers on equitable pay decisions, and making promotion criteria explicit all attack the mechanisms that produce the unexplained gap. None of it is exotic — it's the same disciplined compensation structure that produces fair, defensible pay for everyone, which is why transparency and pay equity tend to advance together.