Non-Public Data in the California Census

Research Data Center

The BasicsThe Basics

• What is an RDC?What is an RDC?

• What data are available in the RDC?What data are available in the RDC?

• What kinds of research can be done with What kinds of research can be done with RDC resources?RDC resources?

• What is the process for getting access to What is the process for getting access to RDC data?RDC data?

CCRDCCCRDCCalifornia Census Research Data Center

BerkeleyThe CCRDC is a joint project of the U.S. Bureau of the

Census and the University of California Berkeley (and UCLA) to enable qualified researchers with approved

projects to access confidential, unpublished Census Bureau data

CCRDC on the web: http://www.ccrdc.ucla.edu/

Purpose of Census Purpose of Census Research Data CentersResearch Data Centers

• Access to non-public use dataAccess to non-public use data

• Secure facilitySecure facility

• Presence of Census Bureau employeePresence of Census Bureau employee

• Benefits to Census BureauBenefits to Census Bureau– Necessary for access to Title 13 and Title 26 Necessary for access to Title 13 and Title 26

datadata– Not required for NCHS, AHRQ data if not Not required for NCHS, AHRQ data if not

linked to Title 13 datalinked to Title 13 data

Where are the RDCs?Where are the RDCs?

• Washington, DC (1983)Washington, DC (1983)– Center for Economic Studies, U.S. CensusCenter for Economic Studies, U.S. Census

• Boston, Mass. (1994)Boston, Mass. (1994)• UCLA and Berkeley (1999)/(Stanford 2010)UCLA and Berkeley (1999)/(Stanford 2010)• Research Triangle, NC (Duke) (2000)Research Triangle, NC (Duke) (2000)• Chicago, Illinois (2002)Chicago, Illinois (2002)• Ann Arbor, Michigan (2002)Ann Arbor, Michigan (2002)• Baruch (NYC, 2006) and Ithaca (Cornell, 2004) Baruch (NYC, 2006) and Ithaca (Cornell, 2004) • Minnesota (2010)Minnesota (2010)

Why do we need RDCs?(Why is access to microdata restricted?)

• Perceptions of improper use couldPerceptions of improper use could– Reduce response ratesReduce response rates– Induce Congress to cut Induce Congress to cut funding/programsfunding/programs

• Title 13 U.S.C protects confidentialityTitle 13 U.S.C protects confidentiality– Identifying microdata cannot be releasedIdentifying microdata cannot be released– Only Census Employees/temporary staff Only Census Employees/temporary staff can look at individually identifiable datacan look at individually identifiable data– Access must provide legitimate benefits Access must provide legitimate benefits to to Census Bureau programsCensus Bureau programs

Why use CCRDC data?Why use CCRDC data?

• Not available elsewhereNot available elsewhere– Establishment level business dataEstablishment level business data– Linked household-firm (LEHD) dataLinked household-firm (LEHD) data

• More detail than anywhere elseMore detail than anywhere else– Detailed geo-spatial variablesDetailed geo-spatial variables– Virtually no top or bottom coding Virtually no top or bottom coding – Possible to link to other non-Census dataPossible to link to other non-Census data

• High Quality Sampling FramesHigh Quality Sampling Frames

• ExtensibilityExtensibility

Access and Disclosure IssuesAccess and Disclosure Issues

• All researchers must be Census Bureau All researchers must be Census Bureau employees or have Special Sworn Statusemployees or have Special Sworn Status– Fingerprints, security forms, penaltiesFingerprints, security forms, penalties

• Projects must showProjects must show– Benefits to BureauBenefits to Bureau– Scientific MeritScientific Merit– FeasibilityFeasibility– Need for non-Public use DataNeed for non-Public use Data– Minimal Risk of DisclosureMinimal Risk of Disclosure

• All output goes through disclosure review process All output goes through disclosure review process (Interim and Final Outputs)(Interim and Final Outputs)– Statistical output: YesStatistical output: Yes– Tabular Output: NoTabular Output: No

Key Demographic Surveys& Censuses

• Decennial Census of Population and Housing

• American Community Survey

• Current Population Survey

• Survey of Income and Program Participation

• American Housing Survey

• National Longitudinal Survey

Economic datasetsAnnual Capital Expenditures Survey (ACE) / Information and Communication Technology (ICT)Annual Survey of ManufacturersAssets and Expenditures SurveyAuxiliary EstablishmentBusiness Expenditures SurveyCensus of Construction IndustriesCensus of Finance, Insurance, and Real EstateCensus of ManufacturersCensus of MiningCensus of Retail TradeCensus of ServicesCensus of Transportation, Communications, and UtilitiesCensus of Wholesale TradeCommodity Flow SurveyCompustat-SSEL BridgeEnterprise Summary Report

Economic datasets

Exporter DatabaseForeign Trade Data - ExportForeign Trade Data - ImportLarge Company SurveyLongitudinal Business DatabaseManufacturing Energy Consumption SurveyMedical Expenditure Panel Survey - Insurance ComponentNational Employer SurveyOwner Change DatabaseQuarterly Financial ReportStandard Statistical Establishment ListSurvey of Industrial Research and DevelopmentSurvey of Manufacturing TechnologySurvey of Plant Capacity UtilizationSurvey of Pollution Abatement Costs and Expenditures

Longitudinal Business Database

• Longitudinally linked Business Censuses Longitudinally linked Business Censuses – All non-farm establishments with paid All non-farm establishments with paid

employees in (almost) all industries employees in (almost) all industries • 24 million unique establishments24 million unique establishments• Excludes airlines, agriculture, RRExcludes airlines, agriculture, RR

– Every five years from 1977-2002Every five years from 1977-2002• Manufacturing Census available from 1967-2005Manufacturing Census available from 1967-2005• Annual Survey of Manufactures includes all large Annual Survey of Manufactures includes all large

firmsfirms

Longitudinal Business Database

• LBD includes LBD includes – PayrollPayroll– EmploymentEmployment– OwnershipOwnership– Detailed geographic informationDetailed geographic information– Industry at 6-digit NAICS (more detail in some Industry at 6-digit NAICS (more detail in some

cases)cases)– Other variables available (e.g. sales) but Other variables available (e.g. sales) but

coverage varies across sectorscoverage varies across sectors

LBD draws on economic censusesLBD draws on economic censuses

• Census of ManufacturesCensus of Manufactures• Census of ServicesCensus of Services• Census of MiningCensus of Mining• Census of Retail TradeCensus of Retail Trade• Census of Wholesale TradeCensus of Wholesale Trade• Census of Transportation, Census of Transportation,

Communications and UtilitiesCommunications and Utilities– All of these Censuses are available in full, and All of these Censuses are available in full, and

can be linked over time using the LBDcan be linked over time using the LBD

Employer-Employee Linked DatasetsEmployer-Employee Linked Datasets

• LEHD: Longitudinal Employer LEHD: Longitudinal Employer –– Household DynamicsHousehold Dynamics

– 4 million persons linked to 1 million 4 million persons linked to 1 million establishmentsestablishments

– Quarterly data on employment and wages from Quarterly data on employment and wages from state unemployment insurance agenciesstate unemployment insurance agencies• Contains basic demographic data for all employeesContains basic demographic data for all employees• Establishments linked to the LBDEstablishments linked to the LBD• 49/50 states are currently participating49/50 states are currently participating

Other Firm-level DatasetsOther Firm-level Datasets

• Survey of Manufacturing TechnologySurvey of Manufacturing Technology• Quarterly Financial ReportQuarterly Financial Report

– US mining, manufacturing and transportation US mining, manufacturing and transportation businessesbusinesses

• Survey of Plant Capacity UtilizationSurvey of Plant Capacity Utilization• Capital Expenditure SurveyCapital Expenditure Survey• Compustat-LBD BridgeCompustat-LBD Bridge• National Employer SurveyNational Employer Survey• Survey of Pollution Abatement Costs and Survey of Pollution Abatement Costs and

ExpendituresExpenditures• Manufacturing Energy Consumption SurveyManufacturing Energy Consumption Survey

National Center for Health StatisticsNational Center for Health Statistics

• We are now hosting research using confidential NCHS and AHRQ data in We are now hosting research using confidential NCHS and AHRQ data in the CCRDC the CCRDC

• Rules for access and disclosure the same as those in their enclavesRules for access and disclosure the same as those in their enclaves– http://www.cdc.gov/nchs/r&d/rdc.htmhttp://www.cdc.gov/nchs/r&d/rdc.htm– http://www.meps.ahrq.gov http://www.meps.ahrq.gov – http://www.ciser.cornell.edu/NYCRDC/documents/http://www.ciser.cornell.edu/NYCRDC/documents/

NCHS_RDC_Data.pdfNCHS_RDC_Data.pdf– No requirement to demonstrate Census benefitNo requirement to demonstrate Census benefit..

– Long list of datasets – including NHIS, NHANES, NSFG, LSOA….Long list of datasets – including NHIS, NHANES, NSFG, LSOA….– http://www.ciser.cornell.edu/NYCRDC/documents/NCHS_RDC_Data.pdfhttp://www.ciser.cornell.edu/NYCRDC/documents/NCHS_RDC_Data.pdf

New DataNew DataNational Center for Health StatisticsNational Center for Health Statistics

http://www.cdc.gov/rdc/http://www.cdc.gov/rdc/

• National Health and Nutrition Examination Survey (NHANES)National Health and Nutrition Examination Survey (NHANES)NHANES combines interviews and physical examinations to assess the NHANES combines interviews and physical examinations to assess the health and nutritional status of adults and children in the United States. health and nutritional status of adults and children in the United States. 

• National Health Care Surveys (NHCS) National Health Care Surveys (NHCS) A family of provider-based surveys that provide reliable information about A family of provider-based surveys that provide reliable information about health care providers, services, and patients. Nhealth care providers, services, and patients. N

• National Health Interview Survey (NHIS) National Health Interview Survey (NHIS) The NHIS collects data on a broad range of health topics through personal The NHIS collects data on a broad range of health topics through personal health interviews conducted in the home. health interviews conducted in the home. 

• National Vital Statistics System (NVSS) National Vital Statistics System (NVSS) NVSS works with state vital registration systems to compile data on births, NVSS works with state vital registration systems to compile data on births, deaths, marriages, divorces, and fetal deaths. deaths, marriages, divorces, and fetal deaths.

RDC Research EnvironmentRDC Research Environment• ““Thin Client” computing. Thin Client” computing.

– Servers in Maryland, accessed via remote terminalsServers in Maryland, accessed via remote terminals– Standard statistical software (SAS, Stata, Guass, Matlab, etc.)Standard statistical software (SAS, Stata, Guass, Matlab, etc.)– Standard Datasets kept on serversStandard Datasets kept on servers– Other software/data coordinated by Administrator/CES staffOther software/data coordinated by Administrator/CES staff

• Secure Environment Secure Environment – Restricted and monitored keycard accessRestricted and monitored keycard access– No VisitorsNo Visitors– No Laptops, internetNo Laptops, internet– Printing limited, RDC AdministratorPrinting limited, RDC Administrator

• Virtual RDC at Cornell Virtual RDC at Cornell (Synthetic Data, Zero Obs files)(Synthetic Data, Zero Obs files)

http://www.vrdc.cornell.edu/news/http://www.vrdc.cornell.edu/news/

Contact InformationContact Information

• RDC web site: http://www.ccrdc.ucla.edu/ RDC web site: http://www.ccrdc.ucla.edu/ • email: rdc_admin@berkeley.eduemail: rdc_admin@berkeley.edu• RDC phone: (510) 643-2262RDC phone: (510) 643-2262• RDC administrator: Angela AndrusRDC administrator: Angela Andrus• RDC executive director: Jon StilesRDC executive director: Jon Stiles• CES: CES: http://www.ces.census.govhttp://www.ces.census.gov