![]() Getting started Where should a new user start? Although IPUMS retains the original occupation and industry codes, the variables OCC1950 and IND1950 have been created for long-term analysis. IPUMS data also includes harmonized income and occupation variables. The "pointer" variables indicate the location within the household of every person's mother, father, and spouse. IPUMS creates a consistent set of constructed variables on family interrelationships for all samples. This process itself adds value to the data by fully documenting all codes and compiling all variable documentation in a hyperlinked web format. IPUMS data is integrated over time and across samples by assigning uniform codes to variables. Please inform us if you have any presentations or publications using IPUMS data. To be successful, we need to have a large body of users and published works we can point to. We have every expectation of continuing the project beyond the current funding period, but will have to secure further funding as our current grants expire. We plan annual data releases every fall, and our latest plans can be found on our data release schedule page. In addition to improving the ASEC, we are making the basic monthly CPS surveys from 1976 through the present available through IPUMS. IPUMS-CPS is funded through 2015 by several grants from the National Institute of Child Health and Human Development. The IPUMS assigns uniform codes across all the samples and brings relevant documentation into a coherent form to facilitate analysis of social and economic change. IPUMS-USA consists of over sixty high-precision samples of the American population drawn from fifteen federal censuses and from the American Community Surveys. Scholars interested only in the United States are better served using IPUMS-USA, which is optimized for U.S. ![]() IPUMS-International integrates samples from population censuses from around the world taken since 1960. IPUMS-International is the world's largest collection of publicly available individual-level census data. A data extraction system enables users to select only the samples and variables they require. Because the data are individuals and not tables, researchers must use a statistical package to analyze the millions of records in the database. In most samples persons are organized into households, making it possible to study the characteristics of people in the context of their families or other co-residents. Each record is a person, with all characteristics numerically coded. IPUMS is not a collection of compiled statistics it is composed of microdata. Researchers can take advantage of the relatively large sample size of IPUMS-USA at ten-year intervals and fill in information for the intervening years using IPUMS-CPS. decennial censuses that are part of the Integrated Public Use Microdata Series (IPUMS-USA). This harmonized dataset is also compatible with the data from the U.S. To make cross-time comparisons using the CPS data more feasible, variables in IPUMS-CPS are coded identically or "harmonized" for 1962 forward. The ASEC along with basic monthly data from the CPS provides the data for IPUMS-CPS. Among these supplemental surveys, the Annual Social and Economic Supplement (hereafter referred to as the ASEC) is the most widely used by social scientists and policymakers. Over time, supplemental inquiries on special topics have been added for particular months. A battery of labor force and demographic questions, known as the "basic monthly survey," is asked every month. Initiated in the 1940s in the wake of the Great Depression, the survey was designed to measure unemployment. Census Bureau and the Bureau of Labor Statistics. ![]() household survey conducted jointly by the U.S. IPUMS-CPS is an integrated set of data spanning more than 50 years (1962-forward) of the Current Population Survey (CPS). General information about the project What is IPUMS-CPS? What does it mean for a variable to have "multiple variables"? Why are some variables in my data cart preselected?Įxtract option: Select data quality flags Using the data extract system Your data cart Using the variables page Variables page menu What are the major limitations of the data?Ĭan I find particular individuals in the IPUMS data? Using IPUMS data Are there tricky aspects of IPUMS data to be particularly aware of? Is there a preferred statistical package for using the IPUMS?Ĭan I analyze IPUMS-CPS data without a statistical package? How does "sample selection" work on the IPUMS-CPS web site? What if the samples are too big for me to handle? What does "universe" mean in the variable descriptions?
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