The Experience of An ABS Graduate
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Transcript of The Experience of An ABS Graduate
The Experience of An ABS GraduateChris McKendry
Australian Bureau of Statistics
ABS-SSAI Careers Night 12 April 2012
My BackgroundBachelor of Science at UNSW
Honours in StatisticsThesis on Time Series
ABS CadetshipWork Experience in Time Series between semestersStudy support for Honours
Graduate Program (Jan 2011)13 months in Time SeriesRecently moved to Survey Methodology
Perks I Experienced at the ABSConsistent extra-curricular activities
Trivia, tennis, soccer, basketball, touch footy, board games
Access to trainingSAS, Project Management, Economic Statistics,
Statistical Reporting, Time Series, Survey Methods
Networking and TravelInterstate travel is completely normalRepresent your section / division / organisation in
various forums / events
Perks of the ABSFLEXITIME (!!!!)
Like to start late and finish late???Like to start early and finish early???Wish to coordinate work hours with other
studies???Have kids to pick up from school???Like to combine public holidays with flexi-
hours???
Colleagues with similar talents and interestsProgramming, Maths, Statistics, Econometrics
Graduate Year in MDMDRotations Scheme
Rotate at 10 months and 18 monthsDevelop >= 3 disciplines in the first 2.5 years
Sections of workData Confidentialisation, Data-Linking, Operation
Research, Sampling, CPI estimation, Time Series, Econometrics
Corporate ResponsibilitiesCoordinating social activitiesParticipate in MDMD seminars
Friend Project Relevance
Joseph Data confidentialisation Researcher access to confidentialised unit records
Aparjit Monthly Population Survey
National estimates of labour statistics
Daniel Optimality of the CPI Integrity of national statistics
Carrie Data linking Joint use of admin and census data
Me Time Series Reconciliation Detailed data for socio-economic analysis
Projects assigned to 2011 Grads
My Grad Project
Is a pretty good example of an output useful to the business / policy / research community
Not meant to be Earth shatteringBut demonstrates what kind of technical skills
are useful within MDMD
My Grad ProjectBackground in Seasonal Adjustment
Original Data
• Seasonality
• Moving Public
Holidays
• Moving School
Holidays
Monthly Hours Worked In Australia (Original)
My Grad ProjectBackground in Seasonal Adjustment
Seasonally Adjusted
• Less volatile
• Comparable
Months
• Complimentary to Unemployment Rate
Monthly Hours Worked In Australia (Seasonally Adjusted)
My Grad ProjectBackground to ABS Hours Worked Series
Sex State Part/Full time Age
Relevance• Key economic
indicator• Effects of Policy• Natural Disasters• Economic Trends /
Shocks
Users• RBA• Treasury• ABS• DEEWR
Cross-Sectional Splits
SexMale Female Person
Full TimePart TimeWorking
JobStatus
My Grad ProjectReconciliation
Publish SA HW in Sex by Status splits BUT
• Seasonally adjustment not linear
• Sum of SA Components SA Adjusted
Aggregate
SexMale Female Person
Full TimePart TimeWorking
JobStatus
Solution
• Time series reconciliation
• 6 constraints to meet for each time (easy and
standard)
My Grad ProjectReconciliation
𝑠111……… 𝑠1𝑃 1
𝑠1𝑁 1………𝑠1𝑁𝑃
⋮⋮⋮
⋮⋮⋮Sex
F/P- time
State
𝑠11𝑄………𝑠1𝑃𝑄
𝑠1𝑁𝑄……… 𝑠1𝑁𝑄
⋮⋮⋮
⋮⋮⋮
My Grad ProjectReconciliation: 3D Aggregation Structure
3D Aggregation Structure
• Sex by Status by State
• 63 constraints PER OBSERVATION
Quality Concerns
• Meet constraints
• Maintain Level
• Maintain Temporal Movements
My Grad ProjectYou wanted maths at work right?