Does Prenatal WIC Participation Improve Child Outcomes?

Working Paper: NBER ID: w24691

Authors: Anna V. Chorniy; Janet Currie; Lyudmyla Sonchak

Abstract: Large literatures document positive effects of WIC on birth outcomes, and separately connect health at birth and future outcomes. But little research investigates the link between prenatal WIC participation and childhood outcomes. We explore this question using a unique data set from South Carolina which links administrative birth, Medicaid, and education records. We find that relative to their siblings, prenatal WIC participants have a lower incidence of ADHD and other common childhood mental health conditions and of grade repetition. These findings demonstrate that a “WIC start” results in persistent improvements in child outcomes across a range of domains.

Keywords: WIC; Child Outcomes; Prenatal Participation; ADHD; Mental Health

JEL Codes: I18; I38


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
prenatal WIC participation (I38)lower probability of being diagnosed with ADHD (J79)
prenatal WIC participation (I38)lower probability of being diagnosed with other common childhood mental health conditions (I12)
prenatal WIC participation (I38)lower likelihood of grade repetition (I21)

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