Lo – Urban-Rural Differences in a Chain Supermarket’s Sales to SNAP Shoppers before and since COVID-19 Home / Celebration of Undergraduate Research Archives / Poster Urban-Rural Differences in a Chain Supermarket's Sales to SNAP Shoppers before and since COVID-19 (2022) Undergraduate: Amy Lo Link to Abstract Link to Poster Leave a Reply Click here to cancel reply. You must be logged in to post a comment.