TY - JOUR AU - Maurer,Raimond AU - Mitchell,Olivia S. AU - Rogalla,Ralph TI - The Effect of Uncertain Labor Income and Social Security on Life-cycle Portfolios JF - National Bureau of Economic Research Working Paper Series VL - No. 15682 PY - 2010 Y2 - January 2010 UR - http://www.nber.org/papers/w15682 L1 - http://www.nber.org/papers/w15682.pdf N1 - Author contact info: Raimond Maurer Finance Department Goethe University Grüneburgplatz 1 (Uni-PF. H 23) Frankfurt am Main Germany E-Mail: rmaurer@wiwi.uni-frankfurt.de Olivia S. Mitchell University of Pennsylvania Wharton School 3620 Locust Walk, St 3000 SH-DH Philadelphia, PA 19104-6302 Tel: 215-898-0424 Fax: 215/898-0310 E-Mail: mitchelo@wharton.upenn.edu Ralph Rogalla Finance Department Goethe University Grüneburgplatz 1 (Uni-PF. H 23) Frankfurt am Main Germany E-Mail: rogalla@finance.uni-frankfurt.de AB - This paper examines how labor income volatility and social security benefits can influence lifecycle household portfolios. We examine how much the individual optimally saves and where, taking into account liquid financial wealth and annuities, and stocks as well as bonds. Higher labor income uncertainty and lower old-age benefits boost demand for stable income in retirement, but also when young. In addition, a declining equity glide path with age is appropriate for the worker with low income uncertainty; for the high income risk worker, equity exposure rises until retirement. We also evaluate how differences in social security benefits can influence retirement risk management. ER -