Price-based demand response (DR), or time-varying rates, is an underutilized resource that could substantially contribute to load flexibility for electricity systems. In this webinar, authors JP Carvallo and Lisa Schwartz discuss a new technical brief sponsored by the U.S. DOE Office of Electricity. This research finds that evaluation of price-based DR as a solution to meet identified electricity system needs is uncommon for both bulk power system planning and distribution system planning processes. Even where price-based DR is considered as a solution, its characterization and treatment are often deficient. In the webinar, the authors will provide recommendations for improving consideration of price-based DR in the context of long-term planning for bulk power and distribution systems.