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KDI 경제교육·정보센터

ENG
  • 경제배움
  • Economic

    Information

    and Education

    Center

국제무역
Trapped at Home: Weather Shocks, Income, and International Migration
CEPR
2026.09.22
By mid-century, climate change is expected to push millions of migrants across borders, yet direct empirical evidence is limited. Using recent monthly bilateral flow data for 127 developing-country origins and 180 destinations, we estimate migration responses to weather shocks. High-dimensional fixed-effects absorb all origin-, destination-, and migration corridor-by-year confounders, seasonality, and global shocks; identification exploits residual within-corridor weather anomalies. We find no evidence that climate stress raises emigration: higher origin temperatures reduce outflows, while precipitation has no effect. Complementary analysis pinpoints depressed origin income as an underlying mechanism: climate stress tightens household budgets, decreasing the financial viability of international movement.