Sunstein, Cass2014-09-092007David A. Weisbach & Cass R. Sunstein, Symposium on Intergenerational Equity and Discounting, 74 U. Chi. L. Rev. 1 (2007).http://nrs.harvard.edu/urn-3:HUL.InstRepos:12809436en-USJournal Article2014-09-09