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MCRDC

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Title: MCRDC

1
MCRDC

Michigan Census Research Data Center
The MCRDC is a joint project of the U.S. Bureau
of the Census and the University of Michigan to
enable qualified researchers with approved
projects to access confidential, unpublished
Census Bureau data

MCRDC on the web http//www.isr.umich.edu/src/mcr
dc/
2
Agenda

What is an RDC?
What data are available in the RDC?
What is the process for getting access to RDC
data?

3
Purpose of Census Research Data Centers

Access to data
Secure facility
Presence of Census Bureau employee
Benefits to Census Bureau
Necessary for access to Title 13 and Title 26
data
Not required for NCHS, AHRQ data if not linked to
Title 13 data

4
RDCs around the country

Ann Arbor, Michigan
Boston, Mass.
UCLA and Berkeley
Baruch (NYC) and Ithaca (Cornell)
Research Triangle, NC (Duke)
Chicago, Illinois
Washington, DC
Center for Economic Studies, U.S. Census

5
Why use MCRDC data

Not available elsewhere
Establishment level business data
Linked household-firm (LEHD) data
More detail than anywhere else
Detailed geo-spatial variables
Virtually no top or bottom coding
Possible to link to other non-Census data

6
Disclosure Issues

All output goes through disclosure review process
Disclosed output must be at state level
Exceptions must be approved by Census review board

7
Data available in Census Research Data Centers
8
Decennial Census 1970, 1980, 1990 2000

Comparison to PUMS
Lowest level of geography available in the PUMS
is an area that is roughly equivalent to a county
but contains 100,000 people (PUMA)
RDC version includes more detailed geographic
information
current residence block level
place of work census defined place
prior place of residence place
This allows for aggregation to nonstandard units

9
Decennial Census

Comparison to PUMS
Larger sample size
100 of short form respondents
One in six answered long form
PUMS has 5 of population
Improves analysis of small populations/sample
sizes
Less top-coding
Continuous variables, such as income, are
top-coded at a higher level
More detailed codes (race, education, multi-race,
e.g. type of native American)

10
American Community Survey

All surveys with all information collected on
survey
Household or person-level data
Detailed geography (census block)
No top or bottom coding
1996 through 2005 currently available
Can be linked to other data sources, where
feasible and permissible

11
Longitudinal Business Database

Longitudinally linked business Censuses
All non-farm establishments with paid employees
in (almost) all industries
24 million unique establishments
Excludes airlines, agriculture, RR
Every five years from 1977-2002
Manufacturing Census available from 1967-2005
Annual Survey of Manufactures includes all large
firms

12
Longitudinal Business Database

LBD includes
Payroll
Employment
Ownership
Detailed geographic information
Industry at 6-digit NAICS (more detail in some
cases)
Other variables available (e.g. sales) but
coverage varies across sectors

13
LBD draws on economic censuses

Census of Manufactures
Census of Services
Census of Mining
Census of Retail Trade
Census of Wholesale Trade
Census of Transportation, Communications and
Utilities
All of these Censuses are available in full, and
can be linked over time using the LBD

14
Employer-Employee Linked Datasets

LEHD Longitudinal Employer Household
Dynamics
4 million persons linked to 1 million
establishments
Quarterly data on employment and wages from state
unemployment insurance agencies
Contains basic demographic data for all employees
Establishments linked to the LBD
About ½ the states are currently participating

15
Confidential Versions of Your Favorite Public Use
Datasets

Survey of Income and Program Participation (SIPP)
National Longitudinal Survey
Current Population Survey (March)
American Housing Survey
National Longitudinal Mortality Survey
Detailed geographical information
Ability to link to other individual-level data
Little or no top and bottom coding
Raw data without imputations

16
Other Firm-level Datasets

Survey of Manufacturing Technology
Quarterly Financial Report
US mining, manufacturing and transportation
businesses
Survey of Plant Capacity Utilization
Capital Expenditure Survey
Compustat-LBD Bridge
National Employer Survey
Survey of Pollution Abatement Costs and
Expenditures
Manufacturing Energy Consumption Survey

17
National Center for Health Statistics

We are now hosting research using confidential
NCHS and AHRQ data in the MCRDC
Rules for access and disclosure the same as those
in their enclaves
http//www.cdc.gov/nchs/rd/rdc.htm
http//www.meps.ahrq.gov
No requirement to demonstrate Census benefit

18
National Center for Health Statistics

http//www.cdc.gov/nchs/rd/rdc.htm
National Health Interview Survey
1987-2004
Some earlier years may be available
Cross Sectional
43,000 Households/106,000 Persons per Year

19
National Center for Health Statistics

http//www.cdc.gov/nchs/rd/rdc.htm
National Survey of Family Growth
1995 Five Year Retrospective
10,847 Female Respondents
Detailed Information on Pregnancy and
Childbearing

20
National Center for Health Statistics

http//www.cdc.gov/nchs/rd/rdc.htm
Third National Health and Nutrition
Examination Survey
1988-1994
20,000 Households/40,600 Persons
Over Samples Young Children and Older Population

21
National Center for Health Statistics

http//www.cdc.gov/nchs/rd/rdc.htm
National Health Care Surveys
National Immunization Survey
Longitudinal Studies of Aging

22
Agency for Healthcare Research and Quality

http//www.cdc.gov/nchs/rd/rdc.htm
Medical Expenditure Panel Survey
Household Component-Insurance Component linked
file (19961999, 2001)
Nursing Home Component (1996)
Medical Provider Component (except directly
identifiable data)
Two-Year, Two-Panel Files
Area Resource File (county-level data that can be
linked to MEPS-HC)

23
Proposal Process

Preliminary proposal
Create account at Census
http//www.ces.census.gov/
On line submission
Briefly describe topic and data requested
Full proposal to MCRDC and Census (15 pgs)
Must work with MCRDC in preparing proposal
Must include benefits to Census as predominant
purpose (unless asking for NCHS or AHRQ data)
Reviewed by Census Bureaus researchers and
external researchers

24
Virtual RDC

Provides replica computing environment to that in
Census RDCs
Zero Observation data sets available
Available variable
Data set structure
Ability to write code outside RDC and while
awaiting approval of proposal
Data sets available include LEHD, LBD, AHS
Available at http//rdc.ciser.cornell.edu/news/

25
Census Benefits

The predominant purpose of every project using
Title 13 data must be to provide benefits to the
US Census Bureau
Proposals include an explicit statement of the
benefits to be derived from the project
Projects provide the Census Bureau with a
benefits report at the completion of the
project
We will help you to figure out how your project
benefits Census!

26
RDC Administrator

Assistance in Proposal Writing
Assistance in understanding data resources and
what is available within a certain dataset
(survey instruments)
Contacts at Center for Economic Studies and
Census program areas to help answer questions
Lab Assistance and Security at RDC

27
Funding

The MCRDC is supported by
National Science Foundation
Institute for Social Research, including the
Survey Research Center, the Population Studies
Center, and the Inter-University Consortium for
Political and Social Research
Non-UofM researchers pay 15,000 per year for
access to Census RDCs
Support from the Provosts office gives access at
no charge to graduate students and faculty at the
University of Michigan

28
Contact Information

RDC web site http//www.isr.umich.edu/src/mcrdc/
email mcrdc_at_umich.edu
RDC phone (734) 615-2535
RDC administrator Clint Carter
RDC executive director Margaret Levenstein

29
Minority Women Business Owners

SMOBE/SWOBE
Begun in the 1960s
Supplemented the Economic Censuses with a little
bit of demographic information
Characteristics of Business Owners
1982, 1987, 1992, 1994
100,000 owners surveyed
Over-sample of women minorities
Details on business operations and outcomes
1997 SMOBE/SWOBE type info only
2002 Survey of Business Owners
More detail on business operations and outcomes

30
National Crime Victimization Survey

Measures frequency, characteristics and
consequences of criminal victimization
Data are obtained from a national sample of
roughly 50,000 households comprising nearly
100,000 persons
Differences between public use and non public
use income not top-coded and geographic level
more detailed
Geographic level is Census Tract, which is a
statistical division of a county
25 of sample is missing all geographic
identifiers

31
Issues in linking data

Is the merger feasible?
Identifiers, statistical matching
Business Register contains name, street, firm
identifiers so researcher can perform matching
Matches to individuals or households in the
Decennial Census are performed inside Census
Matches to geographic area characteristics can be
done by researcher in RDC
Is the merger permissible?
User supplied data becomes Census Bureau data
once co-mingled
Must have permission from data provider