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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<!-- saved from url=(0084)https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#MARST -->
<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>User Extract cps_00009.dat</title>
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font-size: 62.5%;
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<body>
<div class="pleasenote">
Please note: This is not a web page. You are viewing an XML document in your browser. Please <a href="javascript:history.go(-1)">click here</a> to return to the web. </div>
<div class="ipums_logo"><span class="name">IPUMS</span></div>
<div class="header_section"><h1>User Extract cps_00009.dat</h1></div>
<div class="nav_section">
<span class="nav_label">Jump to Section</span><ol class="nav_list">
<li><a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#docDscr">Document Description</a></li>
<li><a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#stdyDscr">Study Description</a></li>
<li><a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#fileDscr">File Description</a></li>
<li><a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#dataDscr">Variable Description</a></li>
</ol>
</div>
<div class="major_section" id="docDscr">
<h2>§ 1. Document Description</h2>
<div class="group">
<h3>Citation</h3>
<table class="data">
<tbody><tr><td class="table_heading" colspan="2">Title Statement</td></tr>
<tr>
<td class="label">Title:</td>
<td class="value">Codebook for an IPUMS-CPS Data Extract</td>
</tr>
<tr>
<td class="label">Subtitle:</td>
<td class="value">DDI 2.5 metadata describing the extract file 'cps_00009.dat'</td>
</tr>
<tr>
<td class="label">Identification Number:</td>
<td class="value">ddi2-e9cf5490-f939-0139-f6f6-0242c0a81004-cps_00009.dat-cps.ipums.org</td>
</tr>
<tr><td class="table_heading" colspan="2">Responsibility Statement</td></tr>
<tr>
<td class="label">Authoring Entity:</td>
<td class="value">IPUMS</td>
</tr>
<tr>
<td class="label">Affiliation:</td>
<td class="value">University of Minnesota</td>
</tr>
<tr><td class="table_heading" colspan="2">Production Statement</td></tr>
<tr>
<td class="label">Producer:</td>
<td class="value">IPUMS</td>
</tr>
<tr>
<td class="label">Affiliation:</td>
<td class="value">University of Minnesota</td>
</tr>
<tr>
<td class="label">Role:</td>
<td class="value">Documentation</td>
</tr>
<tr>
<td class="label">Date of Production:</td>
<td class="value">March 29, 2022</td>
</tr>
<tr>
<td class="label">Place of Production:</td>
<td class="value">IPUMS, 50 Willey Hall, 225 - 19th Avenue South, Minneapolis, MN 55455</td>
</tr>
<tr><td class="table_heading" colspan="2">Distribution Statement</td></tr>
<tr>
<td class="label">Contact Persons:</td>
<td class="value">IPUMS</td>
</tr>
<tr>
<td class="label">Affiliation:</td>
<td class="value">University of Minnesota</td>
</tr>
<tr>
<td class="label">URI:</td>
<td class="value"><a href="https://ipums.org/">https://ipums.org</a></td>
</tr>
</tbody></table>
</div>
</div>
<div class="major_section" id="stdyDscr">
<h2>§ 2. Study Description</h2>
<div class="group">
<h3>Citation</h3>
<table class="data">
<tbody><tr><td class="table_heading" colspan="2">Title Statement</td></tr>
<tr>
<td class="label">Title:</td>
<td class="value">User Extract cps_00009.dat</td>
</tr>
<tr><td class="table_heading" colspan="2">Responsibility Statement</td></tr>
<tr>
<td class="label">Authoring Entity:</td>
<td class="value">IPUMS</td>
</tr>
<tr>
<td class="label">Affiliation:</td>
<td class="value">University of Minnesota</td>
</tr>
<tr><td class="table_heading" colspan="2">Production Statement</td></tr>
<tr>
<td class="label">Producer:</td>
<td class="value">IPUMS</td>
</tr>
<tr>
<td class="label">Affiliation:</td>
<td class="value">University of Minnesota</td>
</tr>
<tr>
<td class="label">Role:</td>
<td class="value">Documentation</td>
</tr>
<tr>
<td class="label">Date of Production:</td>
<td class="value">March 29, 2022</td>
</tr>
<tr>
<td class="label">Place of Production:</td>
<td class="value">IPUMS, 50 Willey Hall, 225 - 19th Avenue South, Minneapolis, MN 55455</td>
</tr>
<tr><td class="table_heading" colspan="2">Distribution Statement</td></tr>
<tr>
<td class="label">Contact Persons:</td>
<td class="value">IPUMS</td>
</tr>
<tr>
<td class="label">Affiliation:</td>
<td class="value">University of Minnesota</td>
</tr>
<tr>
<td class="label">URI:</td>
<td class="value"><a href="https://ipums.org/">https://ipums.org</a></td>
</tr>
<tr><td class="table_heading" colspan="2">Version Statement</td></tr>
<tr>
<td class="label">Date:</td>
<td class="value">2022-03-29</td>
</tr>
</tbody></table>
</div>
<div class="group">
<h3>Study Scope</h3>
<table class="data">
<tbody><tr><td class="table_heading" colspan="2">Subject Information</td></tr>
<tr>
<td class="label">Topic Classification:</td>
<td class="value">Technical Variables -- HOUSEHOLD</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Linking Variables -- HOUSEHOLD</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Geographic Variables -- HOUSEHOLD</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Technical Variables -- PERSON</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Linking Variables -- PERSON</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Demographics Variables -- PERSON</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Education Variables -- PERSON</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Work Variables -- PERSON</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Income Variables -- PERSON</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Health Insurance Variables -- PERSON</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Summary Health Insurance Variables -- PERSON</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Outgoing Rotation Groups (Earner Study) Variables -- PERSON</td>
</tr>
<tr><td class="table_heading" colspan="2">Summary Data Description</td></tr>
<tr>
<td class="label">Time Period:</td>
<td class="value">1992-03</td>
</tr>
<tr>
<td class="label">Country:</td>
<td class="value">United States</td>
</tr>
<tr><td class="table_heading" colspan="2">Summary Data Description</td></tr>
<tr>
<td class="label">Time Period:</td>
<td class="value">1993-03</td>
</tr>
<tr>
<td class="label">Country:</td>
<td class="value">United States</td>
</tr>
<tr><td class="table_heading" colspan="2">Summary Data Description</td></tr>
<tr>
<td class="label">Time Period:</td>
<td class="value">1994-03</td>
</tr>
<tr>
<td class="label">Country:</td>
<td class="value">United States</td>
</tr>
<tr><td class="table_heading" colspan="2">Summary Data Description</td></tr>
<tr>
<td class="label">Time Period:</td>
<td class="value">1995-03</td>
</tr>
<tr>
<td class="label">Country:</td>
<td class="value">United States</td>
</tr>
<tr><td class="table_heading" colspan="2">Summary Data Description</td></tr>
<tr>
<td class="label">Time Period:</td>
<td class="value">1996-03</td>
</tr>
<tr>
<td class="label">Country:</td>
<td class="value">United States</td>
</tr>
<tr><td class="table_heading" colspan="2">Summary Data Description</td></tr>
<tr>
<td class="label">Time Period:</td>
<td class="value">1997-03</td>
</tr>
<tr>
<td class="label">Country:</td>
<td class="value">United States</td>
</tr>
<tr><td class="table_heading" colspan="2">Summary Data Description</td></tr>
<tr>
<td class="label">Time Period:</td>
<td class="value">1998-03</td>
</tr>
<tr>
<td class="label">Country:</td>
<td class="value">United States</td>
</tr>
<tr><td class="table_heading" colspan="2">Summary Data Description</td></tr>
<tr>
<td class="label">Time Period:</td>
<td class="value">1999-03</td>
</tr>
<tr>
<td class="label">Country:</td>
<td class="value">United States</td>
</tr>
<tr><td class="table_heading" colspan="2">Summary Data Description</td></tr>
<tr>
<td class="label">Time Period:</td>
<td class="value">2000-03</td>
</tr>
<tr>
<td class="label">Country:</td>
<td class="value">United States</td>
</tr>
<tr><td class="table_heading" colspan="2">Summary Data Description</td></tr>
<tr>
<td class="label">Time Period:</td>
<td class="value">2001-03</td>
</tr>
<tr>
<td class="label">Country:</td>
<td class="value">United States</td>
</tr>
<tr><td class="table_heading" colspan="2">Summary Data Description</td></tr>
<tr>
<td class="label">Time Period:</td>
<td class="value">2002-03</td>
</tr>
<tr>
<td class="label">Country:</td>
<td class="value">United States</td>
</tr>
<tr><td class="table_heading" colspan="2">Notes</td></tr>
<tr>
<td class="label">Note:</td>
<td class="value">Additional notes on a sample that is part of this study: IPUMS-CPS, ASEC 1992<br> Density of the full data file: 0.09%<br> Density of this extract: 0.1%<br>
</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Additional notes on a sample that is part of this study: IPUMS-CPS, ASEC 1993<br> Density of the full data file: 0.09%<br> Density of this extract: 0.1%<br>
</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Additional notes on a sample that is part of this study: IPUMS-CPS, ASEC 1994<br> Density of the full data file: 0.09%<br> Density of this extract: 0.1%<br>
</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Additional notes on a sample that is part of this study: IPUMS-CPS, ASEC 1995<br> Density of the full data file: 0.09%<br> Density of this extract: 0.1%<br>
</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Additional notes on a sample that is part of this study: IPUMS-CPS, ASEC 1996<br> Density of the full data file: 0.08%<br> Density of this extract: 0.1%<br>
</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Additional notes on a sample that is part of this study: IPUMS-CPS, ASEC 1997<br> Density of the full data file: 0.08%<br> Density of this extract: 0.1%<br>
</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Additional notes on a sample that is part of this study: IPUMS-CPS, ASEC 1998<br> Density of the full data file: 0.08%<br> Density of this extract: 0.1%<br>
</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Additional notes on a sample that is part of this study: IPUMS-CPS, ASEC 1999<br> Density of the full data file: 0.07%<br> Density of this extract: 0.1%<br>
</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Additional notes on a sample that is part of this study: IPUMS-CPS, ASEC 2000<br> Density of the full data file: 0.08%<br> Density of this extract: 0.1%<br>
</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Additional notes on a sample that is part of this study: IPUMS-CPS, ASEC 2001<br> Density of the full data file: 0.15%<br> Density of this extract: 0.2%<br>
</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">Additional notes on a sample that is part of this study: IPUMS-CPS, ASEC 2002<br> Density of the full data file: 0.15%<br> Density of this extract: 0.2%<br>
</td>
</tr>
</tbody></table>
</div>
<div class="group">
<h3>Data Access - Use Statement</h3>
<table class="data">
<tbody><tr><td class="table_heading" colspan="2">Confidentiality Declaration</td></tr>
<tr><td class="value" colspan="2">None</td></tr>
<tr>
<td class="label">Contact Persons:</td>
<td class="value">IPUMS-CPS</td>
</tr>
<tr>
<td class="label">Affiliation:</td>
<td class="value">IPUMS</td>
</tr>
<tr>
<td class="label">URI:</td>
<td class="value"><a href="http://cps.ipums.org/">http://cps.ipums.org/</a></td>
</tr>
<tr><td class="table_heading" colspan="2">Citation Requirement</td></tr>
<tr><td class="value" colspan="2">Publications and research reports based on the IPUMS-CPS database must cite it appropriately. The citation should include the following:<br><br>Sarah Flood, Miriam King, Renae Rodgers, Steven Ruggles, J. Robert Warren and Michael Westberry. Integrated Public Use Microdata Series, Current Population Survey: Version 9.0 [dataset]. Minneapolis, MN: IPUMS, 2021. https://doi.org/10.18128/D030.V9.0<br><br>The licensing agreement for use of IPUMS-CPS data requires that users supply us with the title and full citation for any publications, research reports, or educational materials making use of the data or documentation. Please add your citation to the IPUMS bibliography: http://bibliography.ipums.org/</td></tr>
<tr><td class="table_heading" colspan="2">Conditions</td></tr>
<tr><td class="value" colspan="2">Users of IPUMS-CPS data must agree to abide by the conditions of use. A user's license is valid for one year and may be renewed. Users must agree to the following conditions:<br><br>(1) No fees may be charged for use or distribution of the data. All persons are granted a limited license to use these data, but you may not charge a fee for the data if you distribute it to others.<br><br>(2) Cite IPUMS appropriately. For information on proper citation, refer to the citation requirement section of this DDI document.<br><br>(3) Tell us about any work you do using the IPUMS. Publications, research reports, or presentations making use of IPUMS-CPS should be added to our Bibliography. Continued funding for the IPUMS depends on our ability to show our sponsor agencies that researchers are using the data for productive purposes.<br><br>(4) Use it for GOOD -- never for EVIL.</td></tr>
<tr><td class="table_heading" colspan="2">Disclaimer</td></tr>
<tr><td class="value" colspan="2">The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses.</td></tr>
</tbody></table>
</div>
<div class="group">
<h3>Study Notes</h3>
<table class="data">
<tbody><tr><td class="table_heading" colspan="2">Notes</td></tr>
<tr>
<td class="label">Note:</td>
<td class="value">User-provided description: Revision of (Revision of (Revision of (1992 - 2002 Occupation data) to include education))</td>
</tr>
<tr>
<td class="label"></td>
<td class="value">This extract is a revision of the user's previous extract, ID 10109560.</td>
</tr>
</tbody></table>
</div>
</div>
<div class="major_section" id="fileDscr">
<h2>§ 3. File Description</h2>
<div class="group">
<h3>File</h3>
<table class="data">
<tbody><tr>
<td class="label">File Name:</td>
<td class="value">cps_00009.dat</td>
</tr>
<tr>
<td class="label">Contents of Files:</td>
<td class="value">Microdata records</td>
</tr>
<tr>
<td class="label">Type:</td>
<td class="value">rectangular</td>
</tr>
<tr>
<td class="label">File Type:</td>
<td class="value">ISO-8859-1 data file</td>
</tr>
<tr>
<td class="label">Data Format:</td>
<td class="value">fixed length fields</td>
</tr>
<tr>
<td class="label">Place of File Production:</td>
<td class="value">IPUMS, 50 Willey Hall, 225 - 19th Avenue South, Minneapolis, MN 55455</td>
</tr>
</tbody></table>
</div>
</div>
<div class="major_section" id="dataDscr">
<h2>§ 4. Variable Description</h2>
<div class="nav_section">
<span class="nav_label">Jump to Variable</span><ol class="nav_list">
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#YEAR">YEAR</a> (Survey year)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#SERIAL">SERIAL</a> (Household serial number)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#MONTH">MONTH</a> (Month)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#CPSID">CPSID</a> (CPSID, household record)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#ASECFLAG">ASECFLAG</a> (Flag for ASEC)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#ASECWTH">ASECWTH</a> (Annual Social and Economic Supplement Household weight)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#STATEFIP">STATEFIP</a> (State (FIPS code))</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#PERNUM">PERNUM</a> (Person number in sample unit)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#CPSIDP">CPSIDP</a> (CPSID, person record)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#ASECWT">ASECWT</a> (Annual Social and Economic Supplement Weight)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#RELATE">RELATE</a> (Relationship to household head)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#AGE">AGE</a> (Age)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#SEX">SEX</a> (Sex)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#RACE">RACE</a> (Race)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#MARST">MARST</a> (Marital status)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#EDUC99">EDUC99</a> (Educational attainment, 1990)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#OCC90LY">OCC90LY</a> (Occupation last year, 1990 basis)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#FIRMSIZE">FIRMSIZE</a> (Number of employees)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#INCWAGE">INCWAGE</a> (Wage and salary income)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#INCLUGH">INCLUGH</a> (Included in employer group health plan last year)</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#HINSCAID">HINSCAID</a> (Any Medicaid/SCHIP/other public insurance (summary))</li>
<li>
<a href="https://live.cps.datadownload.ipums.org/web/extracts/cps/1779371/cps_00009.xml#UNION">UNION</a> (Union membership)</li>
</ol>
</div>
<div class="group" id="YEAR">
<h3>Variable: "YEAR"</h3>
<table class="data">
<tbody><tr>
<td class="label">Name:</td>
<td class="value">YEAR</td>
</tr>
<tr>
<td class="label">Label:</td>
<td class="value">Survey year</td>
</tr>
<tr>
<td class="label">Variable Text:</td>
<td class="value">YEAR reports the year in which the survey was conducted. YEARP is repeated on person records.</td>
</tr>
<tr>
<td class="label">Concept:</td>
<td class="value">Technical Variables -- HOUSEHOLD</td>
</tr>
<tr>
<td class="label">Start Position:</td>
<td class="value">1</td>
</tr>
<tr>
<td class="label">End Position:</td>
<td class="value">4</td>
</tr>
<tr>
<td class="label">Width:</td>
<td class="value">4</td>
</tr>
<tr>
<td class="label">Variable Format:</td>
<td class="value">numeric</td>
</tr>
<tr>
<td class="label">Implied Decimal Places:</td>
<td class="value">0</td>
</tr>
<tr>
<td class="label">Coder Instructions:</td>
<td class="value">CodesYEAR is a 4-digit numeric value.</td>
</tr>
</tbody></table>
</div>
<div class="group" id="SERIAL">
<h3>Variable: "SERIAL"</h3>
<table class="data">
<tbody><tr>
<td class="label">Name:</td>
<td class="value">SERIAL</td>
</tr>
<tr>
<td class="label">Label:</td>
<td class="value">Household serial number</td>
</tr>
<tr>
<td class="label">Variable Text:</td>
<td class="value">SERIAL is an identifying number unique to each household in a given survey month and year. All person records are assigned the same serial number as the household record they follow. A combination of YEAR, MONTH, and SERIAL provides a within-sample unique identifier for every household in IPUMS-CPS; YEAR, MONTH, SERIAL, and PERNUM uniquely identify every person within a single sample.<br><br>SERIAL is a new value generated for IPUMS-CPS and should not be confused with the household serial number created by the Census Bureau and included in the original CPS data.</td>
</tr>
<tr>
<td class="label">Concept:</td>
<td class="value">Technical Variables -- HOUSEHOLD</td>
</tr>
<tr>
<td class="label">Start Position:</td>
<td class="value">5</td>
</tr>
<tr>
<td class="label">End Position:</td>
<td class="value">9</td>
</tr>
<tr>
<td class="label">Width:</td>
<td class="value">5</td>
</tr>
<tr>
<td class="label">Variable Format:</td>
<td class="value">numeric</td>
</tr>
<tr>
<td class="label">Implied Decimal Places:</td>
<td class="value">0</td>
</tr>
<tr>
<td class="label">Coder Instructions:</td>
<td class="value">CodesSERIAL is a 5-digit numeric variable.</td>
</tr>
</tbody></table>
</div>
<div class="group" id="MONTH">
<h3>Variable: "MONTH"</h3>
<table class="data">
<tbody><tr>
<td class="label">Name:</td>
<td class="value">MONTH</td>
</tr>
<tr>
<td class="label">Label:</td>
<td class="value">Month</td>
</tr>
<tr>
<td class="label">Variable Text:</td>
<td class="value">MONTH indicates the calendar month of the CPS interview.</td>
</tr>
<tr>
<td class="label">Concept:</td>
<td class="value">Technical Variables -- HOUSEHOLD</td>
</tr>
<tr>
<td class="label">Start Position:</td>
<td class="value">10</td>
</tr>
<tr>
<td class="label">End Position:</td>
<td class="value">11</td>
</tr>
<tr>
<td class="label">Width:</td>
<td class="value">2</td>
</tr>
<tr>
<td class="label">Variable Format:</td>
<td class="value">numeric</td>
</tr>
<tr>
<td class="label">Implied Decimal Places:</td>
<td class="value">0</td>
</tr>
<tr><td class="table_heading" colspan="2">Categories</td></tr>
<tr><td colspan="2" class="value"><table class="cats">
<tbody><tr>
<th class="cat_val">Value</th>
<th class="cat_lbl">Label</th>
</tr>
<tr>
<td class="cat_val">01</td>
<td class="cat_lbl">January</td>
</tr>
<tr>
<td class="cat_val">02</td>
<td class="cat_lbl">February</td>
</tr>
<tr>
<td class="cat_val">03</td>
<td class="cat_lbl">March</td>
</tr>
<tr>
<td class="cat_val">04</td>
<td class="cat_lbl">April</td>
</tr>
<tr>
<td class="cat_val">05</td>
<td class="cat_lbl">May</td>
</tr>
<tr>
<td class="cat_val">06</td>
<td class="cat_lbl">June</td>
</tr>
<tr>
<td class="cat_val">07</td>
<td class="cat_lbl">July</td>
</tr>
<tr>
<td class="cat_val">08</td>
<td class="cat_lbl">August</td>
</tr>
<tr>
<td class="cat_val">09</td>
<td class="cat_lbl">September</td>
</tr>
<tr>
<td class="cat_val">10</td>
<td class="cat_lbl">October</td>
</tr>
<tr>
<td class="cat_val">11</td>
<td class="cat_lbl">November</td>
</tr>
<tr>
<td class="cat_val">12</td>
<td class="cat_lbl">December</td>
</tr>
</tbody></table></td></tr>
</tbody></table>
</div>
<div class="group" id="CPSID">
<h3>Variable: "CPSID"</h3>
<table class="data">
<tbody><tr>
<td class="label">Name:</td>
<td class="value">CPSID</td>
</tr>
<tr>
<td class="label">Label:</td>
<td class="value">CPSID, household record</td>
</tr>
<tr>
<td class="label">Variable Text:</td>
<td class="value">CPSID is an IPUMS-CPS defined variable that uniquely identifies households across CPS samples. The first six digits of CPSID index the four-digit year and two-digit month that the household was first in the CPS. CPSID allows users to link a household record across samples, based on the 4-8-4 rotation pattern, by assigning a unique CPSID value based on a combination of household identifiers. CPSID will only ever appear for a maximum of 8 times, which is the number of times a household may be observed in the CPS survey (as indexed by MISH). In some cases, a household will appear fewer than 8 times due to migration, mortality, non-response, and recording errors. CPSID Extensive documentation about the creation of CPSID is available elsewhere.<br><br>CPSID may also be used to link ASEC respondents who are in the March Basic Monthly file to other months of CPS data. This linking is made possible by IPUMS through the creation of MARBASECIDP. Users should note that ASEC oversample households (as indicated by ASECOVERH) will always have a CPSID value of 0.<br><br>Users may also want to see CPSIDP for more information about linking individuals across time using a person-specific version of CPSID.</td>
</tr>
<tr>
<td class="label">Concept:</td>
<td class="value">Linking Variables -- HOUSEHOLD</td>
</tr>
<tr>
<td class="label">Start Position:</td>
<td class="value">12</td>
</tr>
<tr>
<td class="label">End Position:</td>
<td class="value">25</td>
</tr>
<tr>
<td class="label">Width:</td>
<td class="value">14</td>
</tr>
<tr>
<td class="label">Variable Format:</td>
<td class="value">numeric</td>
</tr>
<tr>
<td class="label">Implied Decimal Places:</td>
<td class="value">0</td>
</tr>
<tr>
<td class="label">Coder Instructions:</td>
<td class="value">CodesCPSID is a 14-digit numeric variable.</td>
</tr>
</tbody></table>
</div>
<div class="group" id="ASECFLAG">
<h3>Variable: "ASECFLAG"</h3>
<table class="data">
<tbody><tr>
<td class="label">Name:</td>
<td class="value">ASECFLAG</td>
</tr>
<tr>
<td class="label">Label:</td>
<td class="value">Flag for ASEC</td>
</tr>
<tr>
<td class="label">Variable Text:</td>
<td class="value">ASECFLAG indicates whether the respondent is part of the ASEC or the March Basic. This variable is useful for users who wish to distinguish ASEC and March Basic files in their extracts. See further information about the ASEC versus the March Basic Monthly Files.</td>
</tr>
<tr>
<td class="label">Concept:</td>
<td class="value">Technical Variables -- HOUSEHOLD</td>
</tr>
<tr>
<td class="label">Start Position:</td>
<td class="value">26</td>
</tr>
<tr>
<td class="label">End Position:</td>
<td class="value">26</td>
</tr>
<tr>
<td class="label">Width:</td>
<td class="value">1</td>
</tr>
<tr>
<td class="label">Variable Format:</td>
<td class="value">numeric</td>
</tr>
<tr>
<td class="label">Implied Decimal Places:</td>
<td class="value">0</td>
</tr>
<tr><td class="table_heading" colspan="2">Categories</td></tr>
<tr><td colspan="2" class="value"><table class="cats">
<tbody><tr>
<th class="cat_val">Value</th>
<th class="cat_lbl">Label</th>
</tr>
<tr>
<td class="cat_val">1</td>
<td class="cat_lbl">ASEC</td>
</tr>
<tr>
<td class="cat_val">2</td>
<td class="cat_lbl">March Basic</td>
</tr>
</tbody></table></td></tr>
</tbody></table>
</div>
<div class="group" id="ASECWTH">
<h3>Variable: "ASECWTH"</h3>
<table class="data">
<tbody><tr>
<td class="label">Name:</td>
<td class="value">ASECWTH</td>
</tr>
<tr>
<td class="label">Label:</td>
<td class="value">Annual Social and Economic Supplement Household weight</td>
</tr>
<tr>
<td class="label">Variable Text:</td>
<td class="value">ASECWTH is a household-level weight that should be used to generate statistics about households in March Annual Social and Economic (ASEC) Supplement data. The CPS uses a complex stratified sampling scheme, and ASECWTH must be used to produce unbiased household-level statistics from the IPUMS-CPS ASEC data. For analyses of non-ASEC data, researchers should use HWTFINL. For individual-level analyses, researchers should use WTFINL, ASECWT, or EARNWT. <br><br>ASECWTH generally has the same value as WTSUPP for the household head or reference person. Vacant housing units and households that could not be interviewed due to residents' absence or refusal to participate have a value of zero in HWTSUPP; such sampled units were included in the public use CPS data beginning in 1988. <br><br>Estimates on the entire population are prepared by projecting forward the resident population from the last available census. These projections are derived by updating the demographic census data from a number of other data sources that account for death, births and net migration. About 3 years after every census (i.e. 2003 for the 2000 Census and 2013 for the 2010 Census), the Census Bureau updates its independent population control and provides a new weight for the relevant years.<br><br>Two important points should be noted here. First, the lag between when the Census is conducted and when the CPS weights are updated is about 3 years. While the Census data are being processed, the CPS files are made available using the weighting scheme from the US Census prior to the latest Census. Second, once the files are updated, the old weights become obsolete and are replaced in the IPUMS data extract system. Published estimates from the lag years that use the old weights are not always updated. For example, 2010 poverty estimates were released in ASEC using the 2000 population controls. Once the 2010 population controls were made available, IPUMS-CPS replaced the ASEC 2010, 2011, and 2012 weights that are based on the 2000 population control with weights that are based on the 2010 population controls.<br><br>IPUMS-CPS makes available only the most up-to-date weights. The old values are available here: Old SPM and Weights Values.</td>
</tr>
<tr>
<td class="label">Concept:</td>
<td class="value">Technical Variables -- HOUSEHOLD</td>
</tr>
<tr>
<td class="label">Start Position:</td>
<td class="value">27</td>
</tr>
<tr>
<td class="label">End Position:</td>
<td class="value">36</td>
</tr>
<tr>
<td class="label">Width:</td>
<td class="value">10</td>
</tr>
<tr>
<td class="label">Variable Format:</td>
<td class="value">numeric</td>
</tr>
<tr>
<td class="label">Implied Decimal Places:</td>
<td class="value">4</td>
</tr>
<tr>
<td class="label">Coder Instructions:</td>
<td class="value">CodesASECWTH is a 10-digit numeric variable with four implied decimals. That is, 1234567890 should be interpreted as 123456.7890. The IPUMS command files automatically divide ASECWTH by 10,000, so no further adjustment is needed.</td>
</tr>
</tbody></table>
</div>
<div class="group" id="STATEFIP">
<h3>Variable: "STATEFIP"</h3>
<table class="data">
<tbody><tr>
<td class="label">Name:</td>
<td class="value">STATEFIP</td>
</tr>
<tr>
<td class="label">Label:</td>
<td class="value">State (FIPS code)</td>
</tr>
<tr>
<td class="label">Variable Text:</td>
<td class="value">STATEFIP identifies the household's state of residence, using the Federal Information Processing Standards (FIPS) coding scheme, which orders the states alphabetically.<br><br>In 1973-1975 ASEC samples, all households in the Anaheim-Santa Ana-Garden Grove, CA METAREA are coded as Michigan-Wisconsin for STATEFIP in the original data. As there is insufficient geographic information in the public use data to determine which variable is in error, this mistake has been left un-recoded.</td>
</tr>
<tr>
<td class="label">Concept:</td>
<td class="value">Geographic Variables -- HOUSEHOLD</td>
</tr>
<tr>
<td class="label">Start Position:</td>
<td class="value">37</td>
</tr>
<tr>
<td class="label">End Position:</td>
<td class="value">38</td>
</tr>
<tr>
<td class="label">Width:</td>
<td class="value">2</td>