作者单位:
MIT, Engn Syst Div, Cambridge, MA 02144 USA
[1]
Univ Calif Davis, Dept Econ, Davis, CA 95616 USA
[2]
Harvard Univ, Harvard Kennedy Sch, Cambridge, MA 02144 USA
[3]
MIT, Dept Civil & Environm Engn, Cambridge, MA 02144 USA
[4]
Univ Pittsburgh, Sch Informat Sci, Pittsburgh, PA 15260 USA
[5]
发布时间
2015-10-31