Investigating Treatment Effects of Participating Jointly in Snap and WIC When the Treatment is Validated Only for Snap

63 Pages Posted: 26 Feb 2019 Last revised: 1 Jun 2023

See all articles by Helen H. Jensen

Helen H. Jensen

Iowa State University - Department of Economics

Brent Kreider

Iowa State University - Department of Economics

Oleksandr Zhylyevskyy

Iowa State University, Department of Economics

Date Written: February 2019

Abstract

USDA operates several food assistance programs aimed at alleviating food insecurity. We study whether participation in both SNAP and WIC alleviates food insecurity compared with participation in SNAP alone. We bound underlying causal effects by applying nonparametric treatment effect methods that allow for endogenous selection and underrepresented program participation when validation data are available for one program (treatment) but not the other. We estimate average treatment effects using data from the National Household Food Acquisition and Purchase Survey (FoodAPS). FoodAPS includes administrative data to validate SNAP participation. Information on local food prices allows us to construct a food expenditure-based monotone instrumental variable that does not require a typical IV exclusion restriction. Under relatively weak monotonicity assumptions, we identify that the impact of participating in both programs relative to SNAP alone is strictly positive, suggesting that the programs are nonredundant. This evidence can support improved design and targeting of food programs.

Suggested Citation

Jensen, Helen H. and Kreider, Brent and Zhylyevskyy, Oleksandr, Investigating Treatment Effects of Participating Jointly in Snap and WIC When the Treatment is Validated Only for Snap (February 2019). NBER Working Paper No. w25587, Available at SSRN: https://ssrn.com/abstract=3341247

Helen H. Jensen (Contact Author)

Iowa State University - Department of Economics ( email )

260 Heady Hall
Ames, IA 50011
United States
515-294-6253 (Phone)
515-294-6336 (Fax)

Brent Kreider

Iowa State University - Department of Economics ( email )

260 Heady Hall
Ames, IA 50011
United States
515-294-6237 (Phone)
515-294-1700 (Fax)

HOME PAGE: http://www.econ.iastate.edu/faculty/kreider

Oleksandr Zhylyevskyy

Iowa State University, Department of Economics ( email )

260 Heady Hall
Ames, IA 50011
United States
(515) 294-6311 (Phone)
(515) 29406644 (Fax)

HOME PAGE: http://www.econ.iastate.edu

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