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Methodology

Public vs Private Employment (indexed) — Methodology and Sources

Last reviewed: 2026-05-17

What this measures

Public sector and private sector employment growth in Victoria, both indexed to 100 at FY 2014-15. Lets you see the two trajectories on a single axis without the scale of the private sector (~3.5M people) swamping the public sector (~400K).

How values are derived

For each FY:

  • Public sector employment = sum of VPSC headcount categories
  • Total employment = ABS 6202.0 Vic, FY mean of monthly Seasonally Adjusted observations × 1000
  • Private sector employment = total − public

Then both series are divided by their FY 2014-15 value and multiplied by 100, so both start at 100 and the chart shows percentage change from base.

Why indexed, not absolute

The brief's "frog in the pot" framing — multi-year drift hidden by single-year reporting — is most visible when you can compare the rate of growth, not the levels. Index to 100 makes the comparison clean.

Chart note: re-used comparator slot

This chart re-purposes the nsw comparator slot in the metric schema to carry the "private sector" line, because the LineMetric type supports only Vic + NSW + QLD overlays. The NSW colour (amber) is therefore used for "Private sector". A future schema extension could support multi-series charts properly.

Caveats

  • Public-sector figures: see Public Sector Headcount for the VPSC stitch methodology
  • Private sector calculated by subtraction — includes anyone employed but NOT in the public sector categories, which means small definitional differences flow into private
  • ABS Labour Force uses a household survey, so "total employment" includes self-employed, casuals, and workers across all industries

Sources