Bruce Champ is Senior Research Economist at the Federal Reserve Bank of Cleveland. Earlier he taught at Virginia Polytechnic Institute, the Universities of Iowa and Western Ontario, and Fordham University. Dr Champ's research interests focus on monetary economics and his articles have appeared in the American Economic Review, the Journal of Monetary Economics, the Canadian Journal of Economics and the Journal of Money, Credit, and Banking, among other leading academic publications. He coauthored the first and second editions of Modeling Monetary Economies with the late Scott Freeman.Scott Freeman was a Professor of Economics at the University of Texas, Austin. He taught earlier at Boston College and the University of California, Santa Barbara. Professor Freeman died in 2004 after struggling with amyotrophic lateral sclerosis for several years. Professor Freeman specialized in monetary theory, and his articles appeared in the Journal of Political Economy, the American Economic Review, the Journal of Monetary Economics and the Journal of Money, Credit, and Banking, among other eminent academic journals.