This is an update of a chart originally found on the Census Bureau web site.
|Current Population Survey (CPS) (March Income Supplement)||Survey of Income and Program Participation (SIPP)||Panel Study of Income Dynamics (PSID)|
|Source||Bureau of Labor Statistics||Census Bureau||Institute for Social Research|
|Sample size||60,000 households; (households rotate out)||14,000 to ~40,000 households; (new panels created periodically).||~8,000 families; (over- represents low-income families; adds descendant households).|
1983 (data begins with 1984)
Predecessor program (1977-1981) was Income Survey Development Program (ISDP).
|Frequency||Monthly (Base + supplements¹)||Continuing||Annual (1968-1996); Biennial (1997 to present)|
|Documentation||BLS Handbook of Methods, chapt. 1; CPS Topics Index||
Sample designed to be representative within states?
|Income data||Data for prior calendar year for about 35 cash and in-kind Sources||Data for about 70 cash and in-kind Sources at each 4- month wave, with monthly reporting for most Sources||Data for prior calendar year for about 25 cash and in-kind Sources with specific months received|
|Tax data||None||Information to determine federal, state, and local income taxes; payroll taxes; property taxes||Information to determine federal, state, and local income taxes; payroll taxes; property taxes|
|Asset-holdings data||None, except home ownership||Detailed inventory of real and financial assets and liabilities; more frequent measures for assets relevant for assistance programs||Information about home value and mortgage debt; occasional information about saving behavior and wealth|
|Expenditure data||None||Information on previous month’s out-of-pocket medical care costs, shelter costs (mortgage or rent and utilities), dependent care costs, and child support payments|