Survey of Program Dynamics (SPD) Third Longitudinal File: Data Years 1992, 1993, 1994, 1996, 1997, 1998, 1999, 2000, and 2001

The Survey of Program Dynamics (SPD) Second Longitudinal File is a fully edited file that provides socioeconomic data for the calendar years 1992-2001, except 1995. It is intended for longitudinal analyses of effects of welfare reform on individuals, families, and households. The file can be linked to the Survey of Program Dynamics (SPD) First Longitudinal File (ICPSR 3315), SPD Second Longitudinal File (ICPSR 3594), SPD 1997 Bridge (ICPSR 2797), SPD 1998 (ICPSR 2917), and the SIPP panel files for 1992 (ICPSR 6429) and 1993 (ICPSR 6886). The subject matter is described as follows: demographic data (age, sex, ethnic origin, marital status, household relationship, education, and veteran status), economic data (work experience, employment status, occupation, industry, weeks worked and hours per week worked, total income, and income components for people 15 years and older), income data (income from jobs, net income from business, farm or rent, pensions, dividends, interest, and Social Security payments), and data covering noncash income sources (food stamps, school lunch program, employer-provided group health insurance plan, employer-provided pension plans, Medicaid, Medicare, CHAMPUS or military health care, and energy assistance). The file contains codes for 41 individual states, plus the District of Columbia. The SPD sample in the nine remaining states is identified in three groups for confidentiality reasons: (1) Maine and Vermont, (2) Iowa, North Dakota, and South Dakota, and (3) Alaska, Idaho, Montana, and Wyoming. The sample is not designed to produce state estimates.