Her research interests lie at the intersection of urban economics, trade, and industrial organization. Her recent articles use detailed data on retail sales to characterize how product prices and availability vary across U.S. cities and to measure the implications of this variation on household living costs. Her current research examines spatial and socio-economic disparities in the availability and consumption of food products. This work, supported by the U.S. Department of Agriculture and the Wharton Social Impact Initiative, seeks to understand the roles that differentials in price sensitivity, nutritional preferences, and retail access each play in explaining socio-economic disparities in nutrition. Selected Publications