Economic research report no err 85 23 pp october 2009 does snap decrease food insecurity untangling the self selection effect by mark nord and marie golla self selection by more food needy households into the supplemental nutrition assistance program snap formerly called the food stamp program makes it difficult to observe positive effects of the program in survey data this study . Economic research report number 85 october 2009 mark nord anne marie golla does snap decrease food insecurity untangling the self selection effect 0 5 10 15 20 25 8 6 2 very low food security before snap 20 intial receipt of snap benefits ercent of households months very low food security while receiving snap the supplemental nutrition assistance program snap formerly the food stamp . Does snap decrease food insecurity untangling the self selection effect economic research report number 85 economic research reports band 85 united states department of agriculture isbn 9781515368366 kostenloser versand fur alle bucher mit versand und verkauf duch amazon. Self selection by more food needy households into the supplemental nutrition assistance program snap formerly called the food stamp program makes it difficult to observe positive effects of the program in survey data this study investigates self selection and ameliorative program effects by examining households food security month by month for several months prior to initial receipt of . Download citation does snap decrease food insecurity untangling the self selection effect children in households reporting the receipt of free or reduced price school meals through the