词条 | Current Population Survey |
释义 |
The Current Population Survey (CPS)[1] is a monthly survey of about 60,000 U.S. households conducted by the United States Census Bureau for the Bureau of Labor Statistics (BLS). The BLS uses the data to publish reports early each month called the Employment Situation.[2] This report provides estimates of the unemployment rate and the numbers of employed and unemployed people in the United States based on the CPS. A readable Employment Situation Summary[3] is provided monthly. Annual estimates include employment and unemployment in large metropolitan areas. Researchers can use some CPS microdata to investigate these or other topics. The survey asks about the employment status of each member of the household 15 years of age or older as of the calendar week containing the 12th day of the month.[4] Based on responses to questions on work and job search activities, each person 16 years and over in a sample household is classified as employed, unemployed, or not in the labor force. The CPS began in 1940, and responsibility for conducting the CPS was given to the Census Bureau in 1942.[5] In 1994 the CPS was redesigned. CPS is a survey that is: employment-focused, enumerator-conducted, continuous, and cross-sectional. The BLS increased the sample size by 10,000 as of July 2001.[6] The sample represents the civilian noninstitutional population. MethodologyApproximately 60,000 households are eligible for the CPS. Sample households are selected by a multistage stratified statistical sampling scheme.[7] A household is interviewed for 4 successive months, then not interviewed for 8 months, then returned to the sample for 4 months after that. An adult member of each household provides information for all members of the household. As part of the demographic sample survey redesign,[8] the CPS is redesigned once a decade, after the decennial census. The most recent CPS sample redesign began in April 2014.[9] Employment classificationPeople are classified as employed if they did any work at all as paid employees during the reference week; worked in their own business, profession, or on their own farm; or worked without pay at least 15 hours in a family business or farm. People are also counted as employed if they were temporarily absent from their jobs because of illness, bad weather, vacation, labor-management disputes, or personal reasons. People are classified as unemployed if they meet all of the following criteria:
The unemployment data derived from the household survey in no way depend upon the eligibility for or receipt of unemployment insurance benefits. Those who are not classified as employed or unemployed are not counted as part of the labor force. These people—those who have no job and are not looking for one—are counted as "not in the labor force". Many who are not in the labor force are going to school or are retired. Family responsibilities keep others out of the labor force. "Discouraged workers" are a subset of those who are "not in the labor force".[11] 1994 revisionsAs a result of research that started in 1986, a complete overhaul of how the CPS was administered and what type of questions were asked occurred.[12] Prior to 1994, the alternate measures of unemployment had different names because the BLS drastically revised the questions in the CPS and renamed the measures: U3 and U4 were eliminated; the official rate U5 remained the same measure but was renamed U3; U6 and U7 were revised and renamed U5 and U6.[13] CPS alternate measures of unemployment before 1994:
CPS alternate measures of unemployment after 1994:
Marginally attached workers are persons who currently are neither working nor looking for work but indicate that they want and are available for a job and have looked for work in the recent past. In addition, marginally attached workers have actively sought work in the past 12 months (e.g. they replied to a "wanted" ad) but have not actively sought work in the past 4 weeks. Discouraged workers, a subset of the marginally attached, have given a job-market related reason for not currently looking for a job (e.g. they believe that no work was available). This group is about 50 percent smaller than the marginally attached group."[14] Persons employed part-time for economic reasons are those who want and are available for full-time work but have had to settle for a part-time schedule. Data availableThe CPS reports:
The survey also reports the labor force participation rate, which is the labor force as a percentage of the population, and the ratio of the employed to the total population of the United States. Although the primary purpose of the CPS is to record employment information, the survey fulfills a secondary role in providing demographic information about the United States population. CPS microdata for the period since 1962 are freely available through the Integrated Public Use Microdata Series. CPS Annual Social and Economic Supplement (ASEC)- the March SupplementSince 1948, the CPS has included supplemental questions (at first, in April; later, in March) on income received in the previous calendar year, which are used to estimate the data on income and work experience. These data are the source of the annual Census Bureau report on income, poverty, and health insurance coverage. Other regular or occasional survey supplement topics, in various months and years, have included after-tax money income, benefits that are not cash, displaced workers, job tenure, occupational mobility, temporary and contingent work, adult education, volunteering, tobacco use, food availability, fertility, and information about veterans. See also
References1. ^[https://www.census.gov/cps/ Current Population Survey (CPS) Main Page] at census.gov 2. ^Employment Situation at bls.gov 3. ^Employment Situation Summary at bls.gov 4. ^{{cite web|url=http://www.bls.gov/respondents/cps/faqs.htm |title=Frequently Asked Questions for CPS Survey Participants |publisher=Bls.gov |date=September 23, 2011 |accessdate=2013-10-12}} 5. ^Chapter 1: Labor Force Data Derived from the Current Population Survey, BLS Handbook of Methods 6. ^{{cite web|url=http://www.bls.gov/cps/cpsjul2001.pdf |title=Expansion of the Current Population Survey Sample Effective July 2001 |publisher=Bls.gov |accessdate=2013-10-12}} 7. ^{{cite web |url=http://dsc.ucsf.edu/main.php?name=cps |title=UCSF – Disability Statistics Center – Current Population Survey (CPS) |publisher=Dsc.ucsf.edu |date= |accessdate=2013-10-12 |deadurl=yes |archiveurl=https://web.archive.org/web/20120717102721/http://dsc.ucsf.edu/main.php?name=cps |archivedate=July 17, 2012 |df=mdy-all }} 8. ^{{cite web|title=Census Bureau: Survey Sample Redesign|url=http://www.whitehouse.gov/sites/default/files/omb/assets/OMB/expectmore/summary/10001178.2003.html|website=Expectmore.gov|accessdate=August 5, 2014|archive-url=https://web.archive.org/web/20141021144713/http://www.whitehouse.gov/sites/default/files/omb/assets/OMB/expectmore/summary/10001178.2003.html|archive-date=October 21, 2014|dead-url=yes|df=mdy-all}} 9. ^{{cite web|title=Redesign of the Sample for the Current Population Survey|url=http://www.bls.gov/cps/sample_redesign_2014.pdf|website=bls.gov|accessdate=August 5, 2014}} 10. ^{{cite web|url=ftp://ftp.bls.gov/pub/time.series/la/la.txt|title=Bureau of Labor Statistics, Employment status of the civilian noninstitutional population|date=November 2010}}{{dead link|date=February 2015}} 11. ^{{cite web|url=http://www.bls.gov/cps/faq.htm#Ques3 |title=Current Population Survey Frequently Asked Questions |publisher=Bls.gov |date=April 18, 2011 |accessdate=2013-10-12}} 12. ^Cathryn S. Dippo, Donna L. Kostanich, and Anne E. Polivka (1994). "EFFECTS OF METHODOLOGICAL CHANGE IN THE CURRENT POPULATION SURVEY". Proceedings of the Survey Research Methods Section IV. Current Population Survey (CPS) Redesign: Parallel Testing Results of Old and New Questionnaire and Collection Methodology. , American Statistical Association. 13. ^John E. Bregger and Steven E. Haugen (1995). "BLS introduces new range of alternative unemployment measures" Monthly Labor Review, October: 19–29. , U.S. Department of Labor, Bureau of Labor Statistics, retrieved March 6, 2009. 14. ^John E. Bregger and Steven E. Haugen (1995). "BLS introduces new range of alternative unemployment measures" Monthly Labor Review, October: p. 26. , U.S. Department of Labor, Bureau of Labor Statistics, retrieved March 6, 2009. Further reading
External links
6 : 1940 introductions|Demographics of the United States|United States Census Bureau|Unemployment in the United States|Household surveys|Bureau of Labor Statistics |
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