IESET.
Hypotheses·labour·labour_reform_australia_workchoices_1996_employment

Australia's 1996 Workplace Relations Act and subsequent 2005 WorkChoices amendments (enterprise-bargaining shift, AWA individual contracts, Fair Pay Commission replacing arbitrated awards) accelerated Australian employment-rate growth between 1996 and 2007 by at least 1.5 pp relative to a synthetic control of OECD peers, with the largest gains in private- sector employment.

PARTIALengine/runs/labour_reform_australia_workchoices_1996_employment

PARTIAL — mean_gap=+0.3444, |gap|/pre_sd=0.35, p_perm=0.875 (gap below 0.5×pre_sd or placebo p≥0.10)

confidence cueThe result is useful, but not decisive. Treat it as a clue, not a settled conclusion.

policy briefMixed or noisy

In ordinary language

In plain terms, this asks whether workplace relations act 1996 is actually linked to better or worse employment to population ratio from 1985 to 2010.

plain answer

The evidence is suggestive but not decisive. mean_gap=+0.3444, |gap|/pre_sd=0.35, p_perm=0.875 (gap below 0.5×pre_sd or placebo p≥0.10)

why it matters

Labor-market rules often help some workers while risking job loss or slower hiring for others. This test looks for that tradeoff in observable employment or unemployment data.

how the test works

It compares 8 country or place units from 1985 to 2010, using a synth did design, with fixed effects for country and year.

what was measured
What changed
  • Workplace relations act 1996
What we checked
  • Employment to population ratio
  • Unemployment rate
what this does not prove

A single test is not the whole truth. It narrows the claim under a specific sample, time period, and method. Strong policy conclusions need the pattern to survive nearby tests, alternative data, and serious objections.

verification

No evidence packet has been generated yet.

Results

engine/runs/labour_reform_australia_workchoices_1996_employment
1007550250198519982010AUSNZLCANGBRUSAIRLDNK
illustrative sketch · run pending
No coefficients yet. When the model fires, this chart will show employment_to_population_ratio across 8 sampled countries over 1985–2010.
The shapes above are stylised — none of the lines are real data.
Placeholder for labour_reform_australia_workchoices_1996_employment. Published chart will be generated from engine/runs/labour_reform_australia_workchoices_1996_employment/chart_data.json.

Pre-registration

registration ordering unverified
first-spec commit 4c8ce8e · 2026-07-18T22:11:21Z
run generated · 2026-04-30T10:15:30Z
Run timestamp predates this path's first git-add commit (rebase, rename, or pre-git local run). Spec hash is still the path's first-add commit — not repository HEAD — but ordering is not a clean pre-registration proof.

Australia's 1996 Workplace Relations Act and subsequent 2005 WorkChoices amendments (enterprise-bargaining shift, AWA individual contracts, Fair Pay Commission replacing arbitrated awards) accelerated Australian employment-rate growth between 1996 and 2007 by at least 1.5 pp relative to a synthetic control of OECD peers, with the largest gains in private- sector employment.

Falsification criterion — what would disprove this

set before the run · honoured after

This hypothesis is considered falsified if:

SUPPORTED if synth-DiD gap on Australian employment rate > +1.5 pp by 2007 AND the gap is robust to a commodity- price control (terms-of-trade index). REFUTED if employment gap < +0.5 pp OR collapses to insignificance once terms of trade is partialled out (commodity-channel-dominant interpretation).

formal test & threshold
test:      Synth-DiD on Australian employment rate 1996-2007 vs OECD donor pool with terms-of-trade control, placebo permutation at p<0.10.

Method

Template
synth_did
Fixed effects
country, year
Clustering
country
Sample
8 countries · 1985 – 2010
Evidence type
associational

Data

VariableSourceTransform
employment_to_population_ratio
outcome
world_bank_wdi:SL.EMP.TOTL.SP.ZStier 2
level
unemployment_rate
outcome
world_bank_wdi:SL.UEM.TOTL.ZStier 2
level
workplace_relations_act_1996
treatment
constructed:indicator for 1996-Q4 enactment, intensified 2005-Q4 with WorkChoicestier 5
indicator
terms_of_trade_index
control
world_bank_wdi:TT.PRI.MRCH.XD.WDtier 2
level
gdp_per_capita_real
control
world_bank_wdi:NY.GDP.PCAP.KDtier 2
log
trade_openness
control
world_bank_wdi:NE.TRD.GNFS.ZStier 2
level

● ready  · ● pending  · ● reconstruct-needed

Detailed result card

Result card — labour_reform_australia_workchoices_1996_employment

Verdict: PARTIAL — mean_gap=+0.3444, |gap|/pre_sd=0.35, p_perm=0.875 (gap below 0.5×pre_sd or placebo p≥0.10)

Pre-registration

  • Claim: Australia's 1996 Workplace Relations Act and subsequent 2005 WorkChoices amendments (enterprise-bargaining shift, AWA individual contracts, Fair Pay Commission replacing arbitrated awards) accelerated Australian employment-rate growth between 1996 and 2007 by at least 1.5 pp relative to a synthetic control of OECD peers, with the largest gains in private- sector employment.
  • Falsification rule: SUPPORTED if synth-DiD gap on Australian employment rate > +1.5 pp by 2007 AND the gap is robust to a commodity- price control (terms-of-trade index). REFUTED if employment gap < +0.5 pp OR collapses to insignificance once terms of trade is partialled out (commodity-channel-dominant interpretation).

Synthetic-control estimate

  • shape: synth_did
  • treated_country: AUS
  • event_year: 1996
  • n_donors: 7
  • donor_weights (top): {'GBR': 0.5914, 'NZL': 0.1999, 'USA': 0.1449, 'DNK': 0.0638, 'CAN': 0.0}
  • pre_rmse: 0.9798701366848453
  • pre_period_sd: 0.9767325631921971
  • mean_post_gap: 0.3443886062368367
  • end_period_gap: -2.7020878485336866
  • post_period_years: [1996, 2010]
  • placebo_p_value: 0.875
  • n_placebos: 7
  • method: synthetic-control via NNLS, permutation inference

Variables resolved

  • world_bank_wdi:SL.UEM.TOTL.ZS → unemployment_rate (outcome, n=8106)
  • world_bank_wdi:NY.GDP.PCAP.KD → gdp_per_capita_real (controls, n=14131)
  • world_bank_wdi:NE.TRD.GNFS.ZS → trade_openness (controls, n=10779)

Generated by scripts/run_synth_did.py at 2026-04-30T10:15:30+00:00

Strongest opposing argument

Every hypothesis ships with its charitable opposing argument. The framework earns credibility by handling objections at their strongest, not weakest.

Notes

Treatment dated 1996-Q4 (Workplace Relations Act enactment). WorkChoices 2005 is treated as a treatment intensification. The 2007 Rudd-government partial repeal provides an endogenous robustness window for testing whether the gain is durable or implementation-conditional.

Authored framework. Read the transparency note.