Acknowledgements
The authors acknowledge the helpful comments from two anonymous
reviewers and discussions with Robert J. Lempert (RAND), Daniel J. Van
Abs (Rutgers), Jeff Gebert (U.S. Army Corps of Engineers), and Megan
Mullin (Duke). D. J. R. was supported by the Science, Technology, and
Environmental Policy (STEP) Program at Princeton University. R. E. K.
was supported by NSF grant ICER-1663807.