“401(k) Plan Asset Allocation, Account Balances, and Loan Activity in 2011,” by Jack VanDerhei, Sarah Holden, Luis Alonso, and Steven Bass (EBRI Issue Brief No. 380, December 2012, .pdf format, 56p.).
www.ebri.org/publications/ib/index.cfm?fa=ibDisp&content_id=5144
