Nathan Edmonson Nathan Edmonson was professor of economics at Georgia State University, director of mineral economics at Kennecott Minerals Company, chief economist at Ashland Oil, and economics consultant to the Board of Governors of the Federal Reserve Sstem. Currently, he is an independent investor and consultant. He has written scholarly articles in Mining Engineering, Journal of Industrial Economics, Nitrogen, and is the author of Technological Foundations of Cyclical Economic Growth (Transaction, 2009). Read More Read Less