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Older Adults Are No Longer Staying in 'Empty-Shell' Marriages - ny times

nytimes.com

The surge in "gray divorce" among older adults challenges the sunk-cost fallacy head-on — revealing why more people are finally choosing future happiness over decades already spent.

Sunk Cost FallacyLife Course TheorySocial Exchange TheoryIdentity Theory

Theory Briefing

  • Gray divorce rates have risen sharply over recent decades, signaling a generational shift in how older adults weigh long-term commitment.
  • Experts cite multiple theories for the trend, suggesting no single cause explains why late-life marriages are dissolving at higher rates.
  • The 'empty-shell' marriage concept captures unions that persist out of habit or obligation rather than genuine connection — a textbook sunk-cost trap.