Brookings Panel on Economic Activity Vol. 2, Pages 189-199 2003 HKS Authors See citation below for complete author information. Jeffrey Frankel James W. Harpel Professor of Capital Formation and Growth Citation Frankel, Jeffrey A. Comment on The Empirics of Growth: An Update, by Barry Bosworth and Susan M. Collins. Brookings Panel on Economic Activity, 2 2003: 189-199.