Institution profile
Columbia University
Columbia researchers across the schools of social work, public health, and SIPA have led trials on poverty, child development, and urban interventions.
3
Experiments
2003–2021
Year span
3 / 3
Positive findings
0
Null findings
Top policy areas
- Cash Transfers · 1
- Energy & Environment · 1
- Public Health · 1
Experiments from Columbia University
- Positive
Child Tax Credit 2021 Expansion (American Rescue Plan)
US Treasury / Columbia University Center on Poverty and Social Policy / Brookings evaluation · United States (national) · 2021 · Cash Transfers
Effect: Monthly child poverty rate dropped from 15.8% (June 2021, pre-expansion) to 11.9% (July 2021, first month of payments) — the largest single-month decline in child poverty ever recorded. Food insecurity among households with children dropped by 26%. Difficulty paying basic expenses declined by 30%. Effects fully reversed when payments expired in January 2022; child poverty climbed back to pre-expansion levels within two months. No significant negative effect on parental labor force participation was detected.
- Positive
British Columbia Carbon Tax
Province of British Columbia · British Columbia, Canada · 2008 · Energy & Environment
Effect: Fuel consumption 15% lower than rest of Canada by 2012; GDP growth roughly equivalent; emissions per capita down 10%
- Positive
Organ Donation Opt-Out Defaults — Cross-National Evidence
Johnson & Goldstein (Columbia) / multiple national health ministries · Multiple countries (Europe) · 2003 · Public Health
Effect: Johnson & Goldstein: opt-in countries averaged 15% donor registration rates; opt-out countries averaged 98% — an 83-percentage-point difference. Wales: registered donor rate rose from 48% to 79% within 18 months of opt-out implementation. Transplant rates: significant increases in actual transplantation in opt-out countries vs. comparable opt-in countries.