Dietary Effects of the Food Stamp Program
基于1979-80年低收入家庭食品消费调查数据，估计食品券福利和现金收入变化对家庭营养素摄入的影响，发现食品券的膳食效应远大于现金收入。
Abstract Based on data from the 1979–80 Survey of Food Consumption in Low‐Income Households, this paper estimates the effects of changes in cash income and the food stamp benefit on household nutrient availability, while controlling for two potential sources of selection bias. The major finding of the empirical analysis is that the estimated dietary effects of changes in food stamp benefits are considerably larger than those resulting from changes in cash income, with estimates of the ratios of the MPC for the food stamp benefit to the cash‐income MPC ranging from three to seven across nutrients. No significant evidence of selection bias was found, and the estimated dietary effects of food stamp benefits from the selection bias models are similar to those from the basic model estimated by ordinary least squares regression.