This study uses calendar year 2011 point-of-sale transaction data from a leading grocery retailer to examine the food choices of SNAP and non-SNAP households . On average, each month's transaction data contained over 1 billion records of food items bought by 26.5 million households in 127 million unique transactions.

The phase I interim report, is the second of three reports. The first report, the Evaluation of White Potatoes in the Cash Value Voucher: Letter Report, recommended allowing white potatoes for purchase with the cash value voucher. This second report presents the evidence, analyses, and framework that will be applied to develop the final report (phase II), which will include recommendations for potential modifications to the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) food packages.

This report assesses that pilot and includes a qualitative evaluation of the vendor and ITO experiences and an assessment of pilot costs.