Thomas H. Naylor is Professor of Economics and Business Administration a t the Fuqua School of Business at Duke University. He is also Director of the Center for Corporate Economics and Strategy at Duke and Managing Director of The Naylor Group, a management consulting group which specializes in strategic planning. He was' the founder of SIMPLAN Systems, Inc., and served as its president for nine years. His formal eduction includes a B.S. in Mathematics from Millsaps College, a B.S. in Industrial Engineering from Columbia University, an M.B.A. from Indiana University, and a Ph.D. in Economics from Tulane University. Dr. Naylor has been a consultant to over 150 organizations throughout the world . Some of his clients have included IBM, AT & T, Shell Oil, Squibb, The New York Times, Northwest Industries, and the Executive Office of the White House. He is author or co-author of twenty books, including Corporate Planning Models (Addison-Wesley, 1979), Strategic Planning Management (Planning Executives Institute, 1980), and Managerial Economics (McGraw-Hill, 1982). He has published 115 articles, which have appeared in professionaljournals such as Business Week, Long Range Planning, Planning Review, Managerial Planning, Management Science, Econometrica, Journal of the American Statistical Association, Economic Journal, Journal of Political Economy, Strategic Management Journal, and The New York Times .