Accessing Official Statistics for

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Nov 16, 2013 (3 years and 8 months ago)

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Accessing Official Statistics for
research purposes

Pat
Coope

Statistics New Zealand

Overview

Access to micro data


The Statistics NZ Data Lab


Some unit
-
record datasets


Confidentialised

Unit Record Files (CURFs)


Special agreement with universities


Tools on the website

2 Nov 2012

2

Canterbury Statistics Day

Wider Access to
Microdata

Previously, only departments of the public service and their
contractors could apply for access.


Now wider access to Statistics NZ
microdata

(unit record files of
individuals and businesses).


August 2012


amendment to Statistics Act 1975


Anyone who
has a statistical or
bona
fide research proposal can apply
for access to
microdata
.


Approval
remains at the discretion of the Government Statistician.


Standard usage rules apply

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3

Canterbury Statistics Day

The Data Lab

What is it?


Secure
computer facilities in Statistics New Zealand's offices where researchers
can work with
anonymised

microdata
.

Where can I use it ?



Wellington, Christchurch, Auckland

Researchers need to be experienced (
ie

no training provided)

Researchers can load their preferred software

Output needs to be
confidentialised

and is checked before release

Applications will be assessed within 15 working days

Typical total costs for a Data Lab project are between $5,000 and
$15,000



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4

Canterbury Statistics Day


URLs for
microdata

access




H
ome
page
===>
http
://
www.stats.govt.nz/tools_and_services/services/microdata
-
access.aspx


Contact address ===>
access2microdata@stats.govt.nz


Research
& resources for researchers ===>
http://
www.stats.govt.nz/tools_and_services/services/microdata
-
access/research.aspx





2 Nov 2012

5

Canterbury Statistics Day

Survey of Family, Income and Employment
(
SoFIE
)

An
8
-
year longitudinal study of income, labour force participation,
educational training, asset accumulation and family structure. It
ran
from 2002


2010.

Add
-
ons


Health modules in waves
3 (2004
-
05), 5 (2006
-
07) and 7 (2008
-
09
).


Assets and liabilities modules in waves 2, 4, 6 and 8

Used in Data Lab by
SoFIE
-
Health team from University of
Otago,Wellington

http://
www.otago.ac.nz/wellington/research/hirp/otago020382.html


Dynamics of Income in Children in New Zealand : report released
August 2012


Dynamics of Income and Deprivation: working paper released May
2012


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6

Canterbury Statistics Day


NZ General Social Survey (NZGSS)

Provides
information on the well
-
being of New Zealanders aged 15
years and
over.


Nationally
representative sample of
8,700 households


Cross
-
sectional survey


Biennial
2008, 2010,
2012

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7

Canterbury Statistics Day

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8

Canterbury Statistics Day

Linked Employer
-
Employee Data (LEED)

A n integrated database that provides an insight into the operation of
New Zealand's labour market, such as job and worker flows.

Created by linking a longitudinal employer series from Statistics
NZ’s Business Frame to a longitudinal series of Employer Monthly
Schedule (EMS) payroll data from IRD.

Official statistics produced since Dec 2004, among them


filled jobs


job flows



the number of jobs created or destroyed


worker flows


the number of people moving into or out of employment

LEED research:


Crichton
, Sarah, Steven
Stillman

and Dean
Hyslop
. July 2011.
"Returning to Work from Injury: Longitudinal Evidence on Employment
and Earnings,"
Industrial and
Labor

Relations Review

64:4, article 7.


2 Nov 2012

9

Canterbury Statistics Day

IDI: The Integrated Data Infrastructure

An

integrated data environment with longitudinal
microdata

about
individuals, households, and
firms.

C
onsolidates
current integrated datasets managed by Statistics
NZ

L
inks migration
and international movements
data

Links through
to Statistics NZ’s Longitudinal Business Database
(LBD).


December
2011
-

IDI prototype completed





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10

Canterbury Statistics Day

Integrated Data Infrastructure

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11

Canterbury Statistics Day

IDI


IDI Prototype


Created to test and develop the IDI


Allows researchers to undertake research a number of years
before the IDI is completed


11 seconded researchers from Ministry of Education and Ministry
of Business, Innovation & Employment


The future

Fully developed IDI due for completion in June 2015







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12

Canterbury Statistics Day

IDI: Research Opportunities


By bringing together many datasets onto one platform, it
means longitudinal analysis can be carried out across
subject areas such as education, employment, migration,
welfare, and business information
.

Examples:


Developing tertiary education outcome indicators


Determine characteristics of school leavers who do not take up
tertiary education


Determine educational and demographic characteristics of
emigrants


Track the labour market pathways of immigrants




2 Nov 2012

13

Canterbury Statistics Day

Confidentialised

Unit Record Files

CURFs are unit record datasets that have been modified to protect
the confidentiality of respondents.


Top
-
coding; data swapping; collapsing categories


Examples


Household Labour Force Survey / New Zealand Income
Survey 2004
-
2007


New Zealand Census of Population and
Dwellings 2001, 2006


New Zealand General Social Survey
2008, 2010


New Zealand Health Survey 2006/07 Adults (Ministry of Health)


CURF homepage ===>
http://www.stats.govt.nz/tools_and_services/services/microdata
-
access/confidentialised
-
unit
-
record
-
files.aspx


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14

Canterbury Statistics Day

Accessing a CURF


Complete
“application to access
microdata
” form, and send
to
Statistics
NZ
.


Need
to demonstrate the intended usage of the
data


A
CURF licence must be signed by a person authorised to
sign on
behalf of the researcher's organisation
.



Each researcher who will have access to the CURF must
sign the
appropriate researcher undertaking
.


CURF
data provided
on CD or
downloaded via secure internet
access


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15

Canterbury Statistics Day

CONZUL Agreement



An agreement between Statistics New Zealand and the Council of
New Zealand University Librarians (CONZUL) .


Enables academics, researchers, and students at all New Zealand
universities to obtain an additional range of statistical products and
data packages


Details of the agreement and data sets are on the “Statistics for
Universities” web page
www.stats.govt.nz/unistats

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16

Canterbury Statistics Day

CONZUL Agreement: Contents


Customised
data


to an agreed sum per annum / covers all
datasets produced by Stats
NZ


Requests to university contact officer (Peter Lund at
Uni

of Canterbury)

Publications

CURFS
(
Confidentialised

Unit
Record
Files
)

CURFS produced by the Australian Bureau of Statistics

Data packages


Sets of Excel tables



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17

Canterbury Statistics Day

CONZUL Agreement: Data packages

Available statistical data packages:

Business Demography


Census of Population and Dwellings



Disability Statistics


Household Economic Survey


Household Labour Force Survey



International Travel and Migration


New Zealand Income Survey

Student debt, income and repayments data package

Time Use Survey 2009/10



supplementary tables



Vital Statistics: Births and Deaths



2 Nov 2012

18

Canterbury Statistics Day

Some Useful Tools on the Statistics NZ website

Classification Code
Finder

(CCF)


CCF contains 20 classifications


useful for quickly coding small volumes of data.


Classification Coding System

(CCS).



downloadable version of CCF


includes
geographic and dual coding capabilities.


useful
for coding large volumes of data from a file.

Table
Builder


(soon to be
NZ.Stat
)

Business
Toolbox


Interactive
Boundary Maps


Infoshare


New Zealand Official Yearbook



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19

Canterbury Statistics Day

Thank you

pat.coope@stats.govt.nz