Frank Ackerman is the Director of the Research and Policy Program at the Global Development and Environment Institute at Tufts University. He received a Ph.D. in Economics from Harvard University and a B.A. in Mathematics and Economics from Swarthmore College. His current research interests include the economics of materials, waste, energy and climate change and their relationship with the environment. Ackerman was the co-founder and editor of Dollars & Sense magazine and has also studied the economics of energy and environmental policy at the Tellus Institute in Boston. (Reference : The Encyclopedia of Earth)