| 001 | University of Wisconsin-Madison | |
| 002 | The London School of Economics and Political Science | |
| 003 | University of California Berkeley | |
| 004 | University of Southern California | |
| 005 | University of Texas--Austin |
| 001 | Harvard University | |
| 002 | University of Cambridge | |
| 003 | University of California Berkeley | |
| 004 | California Institute of Technology | |
| 005 | Massachusetts Institute of Technology |
| 001 | Harvard University | |
| 002 | University of Oxford | |
| 003 | University of Cambridge | |
| 004 | Stanford University | |
| 005 | University of California--Los Angeles |
| 001 | University of Oxford | |
| 002 | University of Cambridge | |
| 003 | Harvard University | |
| 004 | University of California Berkeley | |
| 005 | Stanford University |
