How much does the Supplemental Nutrition Assistance Program alleviate food insecurity? Evidence from recent programme...

Area of Science:

• Public Health
• Nutrition Policy
• Socioeconomic Research

Background:

• Food security is a critical public health concern, particularly for low-income households.
• The Supplemental Nutrition Assistance Program (SNAP) is a key US policy aimed at alleviating food insecurity.
• Understanding SNAP's impact requires accounting for household self-selection into the program.

Purpose of the Study:

• To quantify the effect of SNAP on food security among recipients.
• To isolate SNAP's impact from the self-selection of food-needy households.
• To provide robust estimates of SNAP's effectiveness in reducing very low food security.

Main Methods:

• Analysis of cross-sectional survey data (Current Population Survey Food Security Supplements, 2001-2009).
• Comparison of food security between current SNAP recipients and recent leavers.
• Multivariate logistic regression and 2-year longitudinal panel analysis to control for economic, demographic, and unobserved variables.

Main Results:

• Households remaining on SNAP had 28% lower odds of very low food security compared to recent leavers.
• Longitudinal analysis controlling for prior food insecurity showed a 45% reduction in odds of very low food security.
• Estimates suggest a significant ameliorative effect of SNAP on very low food security.

Conclusions:

• SNAP demonstrably improves food security for recipient households.
• The program's effectiveness in reducing very low food security is substantial, estimated between 20-50%.
• Findings align with and strengthen previous research on SNAP's positive impact.