WIC Participation and Relative Quality of Household Food Purchases

Evidence from FoodAPS

Di Fang, Michael R. Thomsen, Rodolfo M. Nayga, Jr, Aaron M. Novotny

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We examine the effect of the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) on the quality of household food purchases using the National Household Food Acquisition and Purchase Survey (FoodAPS) and propensity score matching. A healthy purchasing index (HPI) is used to measure nutritional quality of household food purchases. WIC foods explain the improvement in quality of food purchases, not self-selection of more nutrition-conscious households into the program. The improvement in purchase quality was driven entirely by WIC participating households who redeemed WIC foods during the interview week. There was no significant difference between WIC participants who did not redeem WIC foods and eligible nonparticipants. In this sample, there is no evidence that lack of access to clinics has adverse effects on participation nor is there evidence that HPI depends on supermarket access. A supervised machine learning process supports our main conclusion on the importance of WIC foods.

Original languageEnglish
JournalSouthern Economic Journal
DOIs
Publication statusPublished - 2019 Jan 1

Fingerprint

Household
Participation
Food
Purchase
Nutrition
Purchasing
Learning process
Self-selection
Propensity score matching
Supermarkets
Machine learning

Keywords

  • C21
  • D1
  • I1
  • I3
  • I38

ASJC Scopus subject areas

  • Economics and Econometrics

Cite this

WIC Participation and Relative Quality of Household Food Purchases : Evidence from FoodAPS. / Fang, Di; Thomsen, Michael R.; Nayga, Jr, Rodolfo M.; Novotny, Aaron M.

In: Southern Economic Journal, 01.01.2019.

Research output: Contribution to journalArticle

Fang, Di ; Thomsen, Michael R. ; Nayga, Jr, Rodolfo M. ; Novotny, Aaron M. / WIC Participation and Relative Quality of Household Food Purchases : Evidence from FoodAPS. In: Southern Economic Journal. 2019.
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