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  3. Human Capital & the Mincer Equation
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  5. Scenario

Labor Economics · advanced

Credential inflation erodes the degree premium

What moves on the Human Capital & the Mincer Equation diagram

  • Earnings with schoolingshifts down (small)

When degrees become ubiquitous, the earnings premium per year of schooling compresses, flattening the Mincer curve and delaying the payback point.

Watch it animateQuiz yourself on Human Capital & the Mincer Equation

Step by step

  1. 1

    The value of a degree depends partly on how rare it is.

  2. 2

    Graduate numbers surge and employers start demanding degrees for jobs that never needed them.

  3. 3

    The return per year of schooling falls: the earnings curve flattens downward.

  4. 4

    The break-even point moves later. If education mostly signals rather than builds skill, expansion dilutes the signal for everyone.

Where this shows up

Examiners ask this as: credential inflation, degree devalued, everyone has a degree, oversupply of graduates, diploma inflation.

Other scenarios on Human Capital & the Mincer Equation

A mining boom lifts wages for school leavers →A tech boom raises the graduate premium →