Acknowledgments
The authors are grateful to Jo Mulligan for the estimation and explanation of input costs used in this volume; to Sonbol A. Shahid-Salles for help in drawing methodological examples from numerous chapters; to George Alleyne, Joel G. Breman, Mariam Claeson, Anthony R. Measham, and Elinor Schwartz for helpful comments; and to Dean T. Jamison and Anne Mills for overall guidance.
