TY - JOUR AU - Gustman,Alan L. AU - Steinmeier,Thomas AU - Tabatabai,Nahid TI - Imperfect Knowledge of Pension Plan Type JF - National Bureau of Economic Research Working Paper Series VL - No. 13379 PY - 2007 Y2 - September 2007 UR - http://www.nber.org/papers/w13379 L1 - http://www.nber.org/papers/w13379.pdf N1 - Author contact info: Alan L. Gustman Department of Economics Dartmouth College Hanover, NH 03755-3514 Tel: 603/646-2641 Fax: 603/646-2122 E-Mail: ALAN.L.GUSTMAN@DARTMOUTH.EDU Thomas Steinmeier Department of Economics Texas Tech University Lubbock, TX 79409 E-Mail: thomas.steinmeier@ttu.edu Nahid Tabatabai Department of Economics Dartmouth College Hanover, N.H. 03755 E-Mail: Nahid.Tabatabai@dartmouth.edu AB - This paper investigates the reasons for discrepancies between the pension plan type reported by respondents to the Health and Retirement Study (HRS) and pension plan type obtained from documents produced by their employers, called Summary Plan Descriptions (SPDs). The analysis suggests the discrepancies are sizable and are mainly due to misreports by respondents. Discrepancies between respondent and firm reports of plan type are first documented for different years and from different data sources. Changes over time in respondent and firm reports are analyzed for those who say their plans did not change. Plan type from payroll data produced by Watson Wyatt, a pension consulting company, is examined and compared to respondent reports for employees covered by Watson Wyatt plans. The Watson Wyatt payroll data report plan type without error, and yet we find the patterns of discrepancies between respondent and firm provided data are the same as for the HRS employer and respondent data. We also explore other evidence gathered by the HRS in the course of interviews and various experiments. Our findings that errors are mainly the result of misreporting by respondents, together with findings from experiments, suggest a number of changes in survey design that can help to reduce reporting error. They also suggest that models of retirement and saving behavior should allow for imperfect knowledge by decision makers. ER -