John Haigh joined HKS as Executive Dean in 2005, and was appointed Co-Director of the Mossavar-Rahmani Center for Business and Government in 2011. Prior to joining HKS he was at AT&T and AT&T Wireless, where he held a variety of strategy and leadership positions. Prior to joining AT&T Haigh worked at Mercer Management Consulting, where he was a partner and consultant for 13 years. His work focused on strategic and operating issues in multiple industries -- telecommunications, transportation, energy and the environment. He also worked at Resources for the Future prior to attending graduate school, focusing on energy and environmental issues. Dean Haigh holds a BA from Grinnell College, where he was the President’s Medalist and Phi Beta Kappa, and a Master in Public Policy (MPP) from Harvard Kennedy School.