TY - JOUR AU - Lachance,Marie-Eve AU - Mitchell,Olivia S. TI - Guaranteeing Defined Contribution Pensions: The Option to Buy-Back a Defined Benefit Promise JF - National Bureau of Economic Research Working Paper Series VL - No. 8731 PY - 2002 Y2 - January 2002 UR - http://www.nber.org/papers/w8731 L1 - http://www.nber.org/papers/w8731.pdf N1 - Author contact info: Marie-Eve Lachance E-Mail: Marie.Lachance@sdsu.edu 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 AB - After a long commitment to defined benefit (DB) pension plans for US public sect or employees, many state legislatures have introduced defined contribution (DC) plans for their public employees. In this process, investment risk which was previously borne by state DB plans has now devolved to employees covered by the new DC plans. In light of this trend, some states have proposed a guarantee mechanism to help protect DC plan participants. One such guarantee takes the form of an option permitting DC plan participants to bu y back their DB benefit for a price. This paper develops a theoretical framewor k to analyze the option design and illustrate how employee characteristics influ ence the option's cost. We illustrate the potential magnitude of a buy-back opt ion value enacted recently by the State of Florida for its public employees. If employees were to exercise the buy-back option optimally, the market value of t his option could represent up to 100 percent of the DC contributions over the wo rklife. ER -