Journal of Policy Modeling Vol. 28, Issue 6, Pages 653-663 September 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. "Could the Twin Deficits Jeopardize U.S. Hegemony?" Journal of Policy Modeling 28.6 (September 2006): 653-663.