The Macroeconomics of Fiscal Policy 2006 HKS Authors See citation below for complete author information. Jeffrey Frankel James W. Harpel Professor of Capital Formation and Growth Citation Frankel, Jeffrey A. "Twin Deficits and Twin Decades." The Macroeconomics of Fiscal Policy. Ed. Richard Kopcke, Geoffrey M. B. Tootell, and Robert K. Triest. MIT Press, 2006, 321-336.