Weijia (Daisy) Dai is an Assistant Professor of Marketing at Purdue University's Mitch Daniels School of Business. Her research studies how information environments and digital platforms affect consumer behavior, firm strategy, and consumer welfare. Her work examines the design and effects of advertising, ratings, reviews, and disclosures across digital platforms, restaurants, and health-related consumer markets. Her research has been published in Marketing Science, American Economic Journal: Microeconomics, and Quantitative Marketing and Economics. She received her Ph.D. in Economics from the University of Maryland, an M.A. in Economics from the University of Southern California, and a B.A. in Economics from Wuhan University.