Volume 56 - Number 4 - Winter 1990

T. Machine-Readable Data Files (MRDF)

References to data of demographic interest that are stored in machine-readable form. All MRDFs coded under this heading are cross-referenced to specific subject categories as appropriate. Articles concerned with the availability of MRDFs are also included.

56:40806 Booth, Alan. Female labor force participation and marital instability, 1980 [MRDF]. Pub. Order No. ICPSR 9199. [1989?]. Inter-University Consortium for Political and Social Research [ICPSR]: Ann Arbor, Michigan. In Eng.
"This data collection was designed to provide information on the effects of wives' participation in the labor force on marriage and marital instability [in the United States]....Variables include background information on respondents (age, race, sex, and household size) as well as information on earnings, commitment to work, hours worked, and occupational status....The sample was selected using a random digit dialing cluster sampling technique." The file structure is rectangular and contains 2,088 records, with a record length of 2,076. Accompanying documentation is available.
Correspondence: Inter-University Consortium for Political and Social Research, P.O. Box 1248, Ann Arbor, MI 48106. Source: ICPSR Bulletin (10)2, Dec 1989.

56:40807 Cutler, Stephen J.; Coward, Raymond T.; Schmidt, Frederick E. Age and residence differences in household composition, 1980 [MRDF]. Pub. Order No. ICPSR 9253. [1989?]. Inter-University Consortium for Political and Social Research [ICPSR]: Ann Arbor, Michigan. In Eng.
"These data were collected to gain a better understanding of the living arrangements of persons 65 and older in the United States. The collection includes four related files. The Complete Person Extract hierarchical file contains data for households with one or more members aged 65 or older....The three rectangular files are 'complex household' subsets of the Complete Person Extract file. Complex households are households containing three or more persons and households containing two persons who are not related by marriage." The first file contains 569,398 cases, with a record length of 193; the second has 157,940 cases, with one record per case and a record length of 100; the third file contains 62,873 records, with a record length of 162; and the fourth has 47,878 records, with a length of 33.
Correspondence: Inter-University Consortium for Political and Social Research, P.O. Box 1248, Ann Arbor, MI 48106. Source: ICPSR Bulletin 10(2), Dec 1989.

56:40808 Hammel, E. A.; Mason, Carl; Wachter, Kenneth W. SOCSIM II: a sociodemographic microsimulation program. Rev. 1.0. Operating manual. Program in Population Research Working Paper, No. 29, Jul 1990. 76, [5] pp. University of California, Institute of International Studies, Program in Population Research: Berkeley, California. In Eng.
This manual provides accompanying technical documentation for SOCSIM, a sociodemographic microsimulation program. It "is divided into five general sections. In the first, we provide an introductory theoretical orientation and some historical notes on the development of the procedures. In the second we go on to an overall description of those procedures. In the third, we move to detailed specifications for programmers, and in the fourth provide instructions for users....Interested persons may obtain machine readable files containing: source code, sample input files and setup, sample output corresponding to these inputs and setup....They should specify whether the files should be sent on: SUN-UNIX.25" tape cassette as a tar file [or] industry standard unlabelled .5" ASCII tape. Specify whether 1600 or 6250 bpi and blocking factor. The fifth section of the manual gives instructions on how to read these tapes and compile and test the programs." The files cost $100 and are available from the Campus Software Office.
Correspondence: University of California, Graduate Group in Demography, 2232 Piedmont Avenue, Berkeley, CA 94720. Location: Princeton University Library (SPR).

56:40809 United States. Bureau of the Census (Washington, D.C.). Census of Population and Housing, 1990: 1988 Dress Rehearsal Census of St. Louis City, East Central Missouri, and Eastern Washington summary tape file 1A [MRDF]. 1990. Washington, D.C. In Eng.
These are summary statistics from the 1988 U.S. Dress Rehearsal Census of St. Louis City, East Central Missouri, and Eastern Washington. "Population items tabulated include age, race, sex, marital status, Hispanic origin, household type, and household relationship....Housing items tabulated include occupancy/vacancy status, tenure, units in structure, contract rent, meals included with rent, value, and number of rooms in housing unit....STF 1A has a record size of 9,610 characters divided into two record segments of 4,805 characters each. The first 300 characters of each segment contain the geographic information."
Correspondence: U.S. Bureau of the Census, Customer Services, Washington, D.C. 20233. Source: U.S. Bureau of the Census, Data User Services Division, Data Developments, No. XIII-15, Jul 1990.

56:40810 United States. Bureau of the Census (Washington, D.C.). Current Population Survey, March 1990 [MRDF]. 1990. Washington, D.C. In Eng.
"This file, also known as the Annual Demographic File, provides the usual monthly labor force data, but in addition, provides supplemental data on work experience, income, noncash benefits, and migration. Comprehensive work experience information is given on the employment status, occupation, and industry of persons 15+ years old and over. Additional data for persons 15 years old and older are available concerning weeks worked and hours per week worked, reason not working full time, total income and income components, and residence on March 1, 1989. Data on employment and income refer to the preceding year, although demographic data refer to the time of the survey....Characteristics such as age, sex, race, household relationship, and Spanish origin are shown for each person in the household enumerated." The file structure is hierarchical and contains 299,576 logical records, each with a size of 656 characters. "This file is available on 9 track tape (EBCDIC or ASCII) at 1600 bpi on 4 reels or at 6250 bpi on 2 reels at a cost of [U.S.] $175 per reel."
Correspondence: U.S. Bureau of the Census, Customer Services, Washington, D.C. 20233. Source: U.S. Bureau of the Census, Data User Services Division, Data Developments, No. XIII-33, Oct 1990.

56:40811 United States. Bureau of the Census (Washington, D.C.). Survey of Income and Program Participation (SIPP). 1987 Panel Wave 7 rectangular core and topical module microdata file [MRDF]. 1990. Washington, D.C. In Eng.
"The file contains basic demographic and social characteristics data for each member of the household. These include age, sex, race..., ethnic origin..., marital status, household relationship, education, and veteran status. Limited data are provided on housing unit characteristics....Core questions, which are repeated at each interview, cover labor force activity, types and amounts of income, and participation in various cash and noncash benefit programs for each month of the four-month reference period....Core data also cover post secondary school attendance, public or subsidized rental housing, low-income energy assistance, and school breakfast and lunch participation. Topical module data cover selected financial assets; medical expenses and work disability; and real estate, shelter costs, dependent care, and vehicles. The sample consists of 4 rotation groups, each interviewed in a different month from February to May 1989...." The file structure is rectangular and contains 30,109 logical records, each with a length of 5,936 characters.
"The file is available on 2 reels at 6250 bpi and on 7 reels at 1600 bpi. The cost is [U.S.] $175 per reel...A machine-readable dictionary is contained at the end of reel 7 at 1600 bpi and reel 2 at 6250 bpi. It is also available separately for $175 on 1 reel at either density."
Correspondence: U.S. Bureau of the Census, Customer Services, Washington, D.C. 20233. Source: U.S. Bureau of the Census, Data User Services Division, Data Developments, No. XIII-20, Aug 1990.

56:40812 United States. Immigration and Naturalization Service (Washington, D.C.). Immigrants admitted to the United States, 1987, 1988 [MRDF]. Pub. Order No. ICPSR 9268, 9269. [1989?]. Washington, D.C. Distributed by Inter-University Consortium for Political and Social Research [ICPSR], Ann Arbor, Michigan. In Eng.
"These data collections contain information on the characteristics of aliens who became legal permanent residents of the United States in fiscal years 1987 and 1988 (October 1986 through September 1987 and October 1987 through September 1988). Data are presented for two types of immigrants. The first category, New Arrivals, came from outside the United States with valid immigrant visas....Those in the second category, Adjustments, were already in the United States with temporary status and were adjusted to legal permanent residence....Demographic information such as age, sex, marital status, occupation, country of birth, country of last permanent residence, and nationality is also provided." Each file is rectangular in structure. The 1987 file contains 601,516 records, with a length of 43; the 1988 file has 643,025 records, also with a length of 43.
Correspondence: Inter-University Consortium for Political and Social Research, P.O. Box 1248, Ann Arbor, MI 48106. Source: ICPSR Bulletin (10)2, Dec 1989.

56:40813 United States. National Center for Health Statistics [NCHS] (Hyattsville, Maryland). Linked birth and infant death data set [MRDF]. [1990]. Hyattsville, Maryland. Distributed by National Technical Information Service. In Eng.
"The National Center for Health Statistics (NCHS) recently established a unique research data base of linked birth and death certificates for infants born in the United States who died before reaching 1 year of age. The first of an annual series of national linked data files is the 1983 birth cohort file, which includes infants born in 1983 who died in 1983 or 1984. Linked files for the birth cohorts of 1984 and 1985 also are available. Files for subsequent years will become available as they are completed....The linked birth and infant death data set contains two separate files on magnetic tape that can be used to calculate infant mortality rates by selected infant and maternal characteristics. The numerator file contains statistical data from linked birth and infant death statistical records. The denominator file includes the NCHS natality file and statistical data from a small number of additional records for late-filed and other selected birth certificates needed to link with infant death records." The files are available on tapes of either 6250 bpi (at U.S. $560) or 1600 bpi ($1,000). Accompanying documentation is available at a cost of $23.
Correspondence: National Technical Information Service, 528 Port Royal Road, Springfield, VA 22161. Source: Producer's announcement.


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