CEPRdata.org provides consistent, user-friendly versions of the Current Population Survey (CPS), American Community Survey (ACS), Survey of Income and Program Participation (SIPP), and other datasets used at CEPR available to all interested policy researchers and academics.

Each dataset is available for download. You can also download and modify any of the underlying Stata programs used to generate the CEPR Uniform Extracts.

All of the programs and data on ceprDATA.org are free and open-source. If you have any questions or comments, please contact us.

Latest

Categories
CPS

2016 CEPR CPS March data updated

Version 1.0 of the CEPR CPS March program files for 1980-2016 has been released. Download the data or view the program files for changes to the final extracts. CEPR CPS Basic Monthly program files for 1979-2015 are also available for download.

Categories
CPS

2015 CEPR CPS ORG Extract updated with a small change

Version 2.1.1 of the CEPR CPS ORG program files for 1979-2015 has been released with one minor change. Download the data or view the programs files for changes to the final extracts. CEPR CPS Basic Monthly program files for 1979-2015 have also been updated and are available for download.

Categories
ACS

2014 CEPR ACS Extract data updated

Version 1.1.1 of the CEPR ACS program files for 2005-2014 has been released with minor changes. Download the data or view the program files for changes to the final extracts.

Categories
CPS

2015 CEPR CPS ORG Extract data updated

Version 2.1 of the CEPR CPS ORG program files for 1979-2015 has been released. Download the data or view the programs files for changes to the final extracts. CEPR CPS Basic Monthly program files for 1979-2015 have also been updated and are available for download.

Categories
ACS

2014 CEPR ACS Extract data updated

Version 1.1 of the CEPR ACS program files for 2005-2014 has been released. Download the data or view the program files for changes to the final extracts.

Categories
CPS

2015 CEPR CPS March data updated

Version 0.9.9.1 of the CEPR CPS March program files for 1980-2015 has been released. Download the data or view the program files for changes to the final extracts. CEPR CPS Basic Monthly program files for 1979-2014 are also available for download.

Categories
CPS

2015 CEPR CPS March data updated

Version 0.9.9 of the CEPR CPS March program files for 1980-2015 has been released. Download the data or view the program files for changes to the final extracts. CEPR CPS Basic Monthly program files for 1979-2014 are also available for download.

Categories
CPS

2014 CEPR CPS March 3/8ths file updated

Version 0.9.8.1 of the CEPR CPS March program files for 1980-2014 has been released. With this update, we are now using the most recently available raw data for the sample with redesigned income questions. Download the data or view the program files for changes to the final extracts.

Categories
CPS

How to uniquely identify households in the March CPS

Within a single file, the best way to uniquely identify households is to use the hhseq variable.

Here’s an explanation from Unicon Research Corporation (which provides the underlying source of our extract from 1980-2013) – “Beginning in 1994 through the current year, there is a problem with duplicate HHIDs for different household units. The problem is particularly severe starting with the SCHIP-expanded sample in 2001 (the 2001s data)… When identifying a household within a file, the variable hhseq should be used. This variable appears to have no problem with duplicate values. However, when matching records across files [if you’re trying to track the same household in multiple years], it is necessary to use HHID. Adding geographic variables to the sort (state, county) may aid in uniquely identifying household units. When that is not enough, we suggest that household units be identified using both hhid and hhseq, then use demographic variables (sex, age, race) to match up individuals within the household, thus insuring that the proper hhid/hhseq units are matched across years.”

While there are duplicate hhids for different households, if you look at hhseq by year, there will no longer be any duplicates.

Categories
CPS

2014 CEPR CPS March data updated

Version 0.9.8 of the CEPR CPS March program files for 1980-2014 has been released. Download the data or view the program files for changes to the final extracts. CEPR CPS Basic Monthly program files for 1979-2014 are also available for download.

There have been several notable changes to the files. First, we now use the raw CPS March data as the sole source of our extract starting in 2014. We still use Unicon’s extract as the underlying source for our extract from 1980-2013.

In addition, the 2014 March CPS included redesigned health insurance and income questions. All of the addresses received the redesigned health insurance questions. However, the income questions were fielded using a split panel design, where 5/8ths of the sample (approximately 68,000 addresses) were given the same income questions as the previous year, while 3/8ths (approximately 30,000 addresses) were part of the “Research File” and were given redesigned income questions. Those who were asked the redesigned income questions gave responses that were significantly different from those who were given the original questions. Therefore, the Census Bureau urges researchers not to combine the two files.

We provide the files separately here. There is a regular CPS March 2014 file (cps_march_2014.zip) that is based on the 5/8ths sample – this is what the Census Bureau has used for their normal publications on income and poverty. We also have available the 3/8ths or Research File (cepr_march_2014_research.zip) that has the redesigned income questions.

We recommend that you use the 5/8ths sample with original income questions for your publications.

For more on these changes, and the Census Bureau’s recommendations on how to handle the data, please see here.