N. Gregory Mankiw is Professor of Economics at Harvard University.
Roger Kaufman is Professor Emeritus, Florida State University, and Director of Roger Kaufman & Associates. He is also Distinguished Research Professor at the Sonora Institute of Technology. His PhD is in communications from New York University. He consults with public and private organizations in the United States, Canada, Australia, New Zealand,nbsp;nbsp; Latin America, and Europe. He is a Certified Performance Technologist and a Diplomate in School Psychology and a Fellow in Educational Psychology of the American Psychological Association. He has been recognized by the ASTD for Distinguished Contribution to Workplace Learning and Performance. Dr. Kaufman has published 39 books and more than 256 articles on strategic planning, performance improvement, quality management and continuous improvement, needs assessment, management, and evaluation.