The authors thank workshop participants at Hitotsubashi, the Autonomous Technological Institute of Mexico, the London School of Economics and Political Science, Monash University, Tulane University, University College London, the University of Miami, the University of Sussex, the University of Southern California, Yonsei University, the University of Chinese Academy of Sciences, the University of Massachusetts Lowell, Shanghai University of Finance and Economics, the Platform Strategy Symposium, and the Conference on Empirical Legal Studies. Several authors have conducted sponsored research or consulting work for companies mentioned in this report within the past three years: K. Rong for Ant Group and Tencent; D. D. Sokol for Meta; and F. Zhu for Meta, ByteDance, and Microsoft. F. Zhu has also taught in an executive education program for Tencent.