Freakonomics, M.D. Freakonomics, M.D.

78. Do Kids Cause Divorce?

Mar 31, 2023 · 18m

Summary

Host Bapu Jenna explores how unexpected events, like having twins, impact marriage stability using 1980s census data. He finds that spontaneous twins increase divorce rates, particularly for twin girls and lower-income couples, often years later. Drawing on Gary Becker’s economic theory, Jenna explains that deviations from expectations—whether negative shocks like job loss or positive ones like weight-loss surgery—can destabilize marriages. Conversely, policies like Medicaid expansion may reduce "medical divorces" by alleviating financial stress.

Topics discussed

Sponsors: Charles Schwab and AdoptUSKids Introduction: Do twins cause divorce? Methodology: Using 1980 census data to isolate random twin births Findings: Twins increase divorce rates, especially later in life Gender and income effects: Twin girls and lower income impact Ad break and transition to economic theory of marriage Gary Becker's theory: Deviations from expectations drive divorce Medical shocks: Weight loss surgery and marriage stability Stabilizing factors: Medicaid expansion and 'medical divorces' Show hiatus and new book announcement: Random Acts of Medicine Credits, network info, and closing sponsor messages
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