Assistant Professor Katherine Harris-Lagoudakis had articles published in the most recent issues of Economic Letters and Economic Inquiry. In Economic Letters, Harris-Lagoudakis co-authored the article "Establishment level information as proxies for demand, congestion and social interaction," with Michael Conlin and Stacy Dickert-Conlin, both of Michigan State University. The article uses cell phone location data linked to store level transactions from a large grocery store chain and finds that the relationship between the number of daily transactions and daily cell phone visits varies within store, across time. In Economic Inquiry, Harris-Lagoudakis co-authored "Purchases over the SNAP benefit cycle: Evidence from supermarket panel data," with Hannah Wich of Stephen F. Austin State University. Their article investigates the effect of Supplemental Nutrition Assistance Program (SNAP) benefit disbursement on intramonthly household level purchases made from a supermarket retailer and finds that spending, the likelihood of shopping, the bulk expenditure share and the national brand expenditure share increase by $2, 1.5, 2, and 0.6% points, respectively, on the day that SNAP benefits are disbursed.

Establishment level information as proxies for demand, congestion and social interaction
Michael Conlin, Stacy Dickert-Conlin, and Katherine Harris-Lagoudakis
Economic Letters 241:111833
doi: 10.1016/j.econlet.2024.111833

Purchases over the SNAP benefit cycle: Evidence from supermarket panel data
Katherine Harris-Lagoudakis, and Hannah Wich
Economic Inquiry
doi: 10.1111/ecin.13241