NBER's Mare-Winship Data -- 1964-1992
This page contains the NBER collection of
Mare-Winship Data. The Mare-Winship Files are a (nearly) uniform subset
of 168 variables from the Current Population Survey March Annual Demographic Supplement files.
MWX.TXT is the documentation for the
The original BLS/Census data and documentation is also available below.
Information on weights, matching, missing data, and SAS source code for 1989-1992
are available below.
Also, matching information and Stata .do files from
NBER Working Paper t0247
by B. Madrian and L. J. Lefgren are available for March-to-March matches and
can be modified for use in other matches.
Technical Paper 63
contains more information about Design and Methodology.
File size: .Z files are 10-11 Mb; .zip files are 7-8 Mb.
Uncompressed files are about 60 Mb.
Both ".Z" and ".zip" files can be uncompressed with winzip.
In addition, ".Z" files can be uncompressed using the UNIX uncompress
command and ".zip" files can be unzipped with uncompression software.
To check your ability to uncompress these files, download the small files
compress.Z or compress.zip.
These files give an example of how to read .Z and .zip ASCII files into SAS for UNIX
without decompressing the files.
To download files in Internet Explorer, right click on them and select "Save Target As...".
If the pdf documents appear to be all blank pages, get the latest Acrobat
Reader at www.abobe.com.
Internal users can obtain the data from a UNIX shell at /homes/data/mare-winship
or on an NBER PC via Network Neighborhood --> NBER --> home --> data --> mare-winship
Updates and changes.
Mare-Winship Extracts Documentation
The Mare-Winship Extracts Documentation is MWX.TXT.
The documentation for the data that the Mare-Winship extracts are based on is available below.
Data definition statement files
Jean Roth created the files below to read the data. The column locations will apply for all years.
However, the variable labels apply only to the specified years. If you want to print the files,
you may want to cut out the parts you don't want first. Each file has about 1,000 lines.
According to the 1964-1965 original BLS documentation:
"Records in Rotation Groups 4 and 8 were not in the March Income Sample* therefore they do
not contain valid income data... and are coded '19' in the income range fields."
Information on Weights
Information on Matching Data and Missing Data
SAS code used to create the NBER Extension to the Mare-Winship Data
To report errors, or if you have comments or suggestions e-mail
|Last Update: November 21, 2001
||Created by Jean Roth December 10, 2000|