Annotation IMF research summaries on global population aging and pension reform (by Mario Cataln) and on questions about decoupling (by M. Ayhan Kose); country study on the United States (by Koshy Mathai); listing of visiting scholars at the IMF during June-august 2008; listing of contents of Vol. 55 No. 3 of IMF Staff Papers; listing of recent IMF Working Papers; and a listing of recent external publications by IMF staff.