| September, 2005 | Iddo Wernick and Frances Irwin
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| June, 2006 | Prepared by Development through Enterprise Project, World Resources Institute, for the Inter-American Development ... |
| July, 2005 | Smita Nakhooda, Jon Sohn, Kevin Baumert
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| September, 1997 | Tamar Gunter
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| November, 1998 | Ben Sinnamon (World Wildlife Fund) and Sandy Buffett (World Resources Institute)
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| December, 1997 | Zou Ji, Renmin University, Beijing
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| February, 2011 | Shally Venugopal, Amanda Sauer and Kyle Loughlin (Standard & Poor’s)
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| May, 2006 | Samantha Putt del Pino, Ryan Levinson, John Larsen
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| October, 1996 | Robert Repetto, Dale Rothman, Paul Faeth, and Duncan Austin
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| September, 2004 | U.S. DOE, Energy Efficiency and Renewable Energy, Federal Energy Management Program; U.S. EPA Green Power ... |