Handbook of Empirical Corporate Finance || Self-Selection Models in Corporate Finance**We thank N.K. Chidambaran, Craig Doidge, Espen Eckbo, Andrew Karolyi, Gordon Phillips, Vojislav Maksimovic, Jeffrey Smith, and Xinlei Zhao without implicating them for any errors or omissions, which remain ours. Li acknowledges the financial support from the Social Sciences and Humanities Research Council of Canada, and the W.M. Young Chair in Finance from the Sauder School of Business at UBC. Li also wishes to thank the support and hospitality of the MIT Sloan School of Management where she completed most of her work on this chapter.