The Evidence on Teaching

The Effects of School Spending on Educational and Economic Outcomes (court-ordered finance reforms)

Jackson, C. K., Johnson, R. C., & Persico, C. · 2016

grade Bnatural-experimentindependentreplicatednumbers spot-checked
Sample
PSID cohorts born 1955-85
Population
US children spanning court-ordered school-finance reforms.
Design
Exogenous reform-timing variation; long-run registry-style outcomes.
Key findings
Overturned the blanket 'money doesn't matter': money bought real inputs (smaller classes, teacher pay, longer years) for poor children in a low-spending era and moved lifetime outcomes.
Genetic confound
Reform timing plausibly orthogonal to family genotype.
Replication notes
Verified. Confirmed on modern test data by Lafortune et al. 2018.
DOI / URL
10.1093/qje/qjv036

Effects

OutcomeMetricValueMeasureTimingVsHorizonClass
10% more spending x 12 school years, full sampleoutcomes+0.31 years education; ~+7% wages; -3.2pp adult povertystandardizedadultbusiness-as-usualadulthoodattainment
Low-income childrenoutcomes+0.46 years; +9.6% wages; -6.1pp poverty — effects concentrated among the poor, small for the affluentstandardizedadultbusiness-as-usualadulthoodattainment

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