“Food stamp programs provide stamps or coupons that may be used for the purchase of food, or of particular foods. The stamps may be denominated in value terms or in terms of quantities of specific foods.”
Source: Rogers, B. L. et al. 2002. "Food-Based Safety Nets and Related Programs". Social Protection discussion paper series, No. 0225. Washington, DC: The World Bank. <http://documents.worldbank.org/curated/en/546931468780609944/pdf/297350E.pdf>. Accessed 11 June 2020.