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I thank the participants of the 1st European Conference of the Society for Financial Econometrics (2009, Geneva) and the 12th Conference of the Swiss Society for Financial Market Research (2009, Geneva), the group Treasury Engineering at Zürcher Kantonalbank, and the team Credit Risk Analytics at Credit Suisse, in particular Daniel Aunon, Peter Bolleter, Manuele de Gennaro, Aleksandar Georgiev, Jérôme Koller, Basile Maire, Thomas Nittner, Markus Rech, Maria Stepanova, Daniel Straumann, and Urs Wolf for valuable discussions and numerous workshops. I especially thank Basile Maire for assistance in the computation of Merton’s probabilities of default (PDs). Furthermore, I thank Hendrik Bessembinder (the editor), Markus Betschart, Christian Bluhm, Peng Cheng, Sanjiv Das (the referee), Daniel Egloff, Markus Leippold, and Paolo Vanini for their valuable comments and suggestions. The content of this paper reflects the personal view of the author. In particular, it does not necessarily represent the opinion of Zürcher Kantonalbank.