The authors thank Paulo Albuquerque, Anocha Aribarg, Bryan Bollinger, Anindya Ghose, Elisabeth Honka, Masakazu Ishihara, Pranav Jindal, Xiao Liu, Ana Martinovici, Tom Meyvis, Eitan Muller, Shervin Tehrani, Olivier Toubia, and Russ Winer as well as participants at the University of Texas–Dallas Bass Frontiers of Research in Marketing Science Conference 2020, Marketing Science Conference at Duke 2020, Rutgers Mentor-Mentee Symposium 2019, and New York University (NYU) Marketing Department seminar series for their comments. The authors also thank Hanson Ho and Mengzhu Chen for their research assistance and Norman White, Robin Wurl, Shenglong Wang, Eugene Dzedzits, and the staff at both the NYU Stern Research Computing and High Performance Computing centers for their help with the computational challenges encountered during estimation. Finally, the authors acknowledge the assistance provided by Analysis Group and Christopher Borek, managing principal at Analysis Group, and Nino Sitchinava during the design of the experiment. Original data collection was part of a major lawsuit. Legal requirements and nondisclosure agreements prevent the authors from providing some details. The usual disclaimer applies.