Talia Gillis studies the intersection of law, economics, and consumer markets, focusing on household financial behavior and the impact of technological and legal changes on consumer welfare. Her research delves into the effects of regulatory tools and financial disclosures on consumer welfare, as well as how households manage their financial resources and the role of mental accounting in these processes. Gillis's recent work examines the implications of artificial intelligence and consumer fintech on consumer welfare, addressing potentially significant distributional concerns. She gained recognition for her paper "The Input Fallacy," which won the 2022 AALS Scholarly Papers Competition, and she was awarded the 2022 Junior Faculty Grant from the Richard Paul Richman Center for Business, Law, and Public Policy. Gillis joined the faculty at Columbia Law School in 2020 after completing her S.J.D. degree at Harvard University, where she also pursued a Ph.D. in economics and held several fellowships related to empirical law, finance, and negotiations. Earlier in her career, she clerked for Deputy Chief Justice Hanan Melcer at the Supreme Court of Israel.