what s available from the survey of income and program participation march 1997 sipp is a document prepared annually updating availability products in printed electronic media following papers reports are now working nos 1 224 compilation presented sessions at american statistical association meetings august 1984 1985 1986 1987 1988 1989 1990 published current population series p 70 23 h 121 quality profile summary known about sources magnitudes errors both sampling nonsampling estimates based on individual families transition understanding change through longitudinal data social science research council conference annapolis md 16 18 special issue journal economic measurement containing proceedings sponsored by national foundation census bureau food stamp results