Evolution of the Infant Health Production Function
---- Acknowledgments ----
First and foremost, this paper was a labor of love for our mentor, life coach, and friend, Michael Grossman. We (and at least 115 others) had the rare mentor who is not only brilliant, but also has a heart the size of Texas. Mike, we can't thank you enough for your extraordinary generosity with time, advice, and anything else that was needed to keep us going and even thrive. Your impact on our careers and our lives (and those of countless others) goes way beyond our product here. The authors would also like to thank Grace Hillman and Erik Adamcik for extensive research assistance in the preparation of this article. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.