We gratefully acknowledge helpful comments from Jawad Addoum, Jennie Bai, Brad Barber, Philip Bond, Qi Chen, Jaewon Choi, Tony Cookson, Olivier Dessaint, Caroline Flammer, Thierry Foucault, Laurent Fresard, Abhinav Gupta, Matt Gustafson, Zhiguo He, Gerard Hoberg, Harrison Hong, Sudarshan Jayaraman, John Xuefeng Jiang, Andrew Karolyi, Jonathan Karpoff, Sophia Kazinnik, Doron Levit, Jiasun Li, Pedro Matos, Randall Morck, Tobias J.