I thank the editorial team at John Wiley & Sons for their support throughout the development of the book, in particular Laura Walsh, who first contacted me with the idea for this book, Emilie Herman, Meg Freeborn, and Bill Falloon as well as the reviewers who made valuable comments.

Ron Charnock has been very supportive and encouraged me with many helpful tips. Others who have given me ideas, sometimes unwittingly, that are incorporated in the text are Geoffrey Foisie, Randy Baron, Juan Monteverde, Randall Steinmeyer, Eric Andersen, and Marc Weinberg.

Adam Mersereau recognized the potential behind applying the newsvendor formula to the cash management problem and referred me to Warren Powell, who developed the algorithm in Chapter 14 with Juliana Nascimento.

Ashish Tripathy worked with me on analyzing probabilities for the closing or failure of mergers.

Finally, I thank all authors who have given me permission to reprint tables or figures from other studies.