IESET.
Hypotheses·growth·china_extra_property_bubble_bust_2020_2024

China's property-sector deleveraging shock 2020-2024 — triggered by the August 2020 "three red lines" policy on developer leverage, escalating through Evergrande's September 2021 default, Country Garden's 2023 liquidity crisis, and the persistent ghost-cities inventory overhang — produced a structural break in residential investment and a sustained drag on aggregate growth that is identifiable in real GDP, gross capital formation, and the household-consumption share of GDP.

Post-shock (2021-2024) annualised real GDP growth is at least 2 percentage points per year below the 2010-2019 trend, and gross fixed capital formation share of GDP falls by at least 3 percentage points peak-to-trough.

REFUTEDengine/runs/china_extra_property_bubble_bust_2020_2024

REFUTED — shape=pre_post, sign - OPPOSITE claim +; |Δ_log|=0.0358; threshold 2.0%, observed 3.6%

confidence cueThis test cuts against the claim as written or misses its pre-declared threshold.

policy briefNeeds review

In ordinary language

Over a long period, do more market-oriented institutions translate into higher income or productivity, once the comparison looks beyond a single success story?

plain answer

The data did not support the prediction. shape=pre_post, sign - OPPOSITE claim +; |Δ_log|=0.0358; threshold 2.0%, observed 3.6%

why it matters

Growth claims can look convincing in single success stories. This test asks whether the pattern survives a broader comparison.

how the test works

It compares 1 country or place units from 2008 to 2024, using a descriptive design.

what was measured
What changed
  • Post three red lines indicator
What we checked
  • Real income growth
  • Real income pc growth
  • Gross fixed capital formation pct income
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

0 input datasets, 0 unresolved missing series, provenance status: no input vintages recorded.

Results

engine/runs/china_extra_property_bubble_bust_2020_2024
1007550250200820162024CHN
illustrative sketch · run pending
No coefficients yet. When the model fires, this chart will show real_gdp_growth across 1 sampled countries over 2008–2024.
The shapes above are stylised — none of the lines are real data.
Placeholder for china_extra_property_bubble_bust_2020_2024. Published chart will be generated from engine/runs/china_extra_property_bubble_bust_2020_2024/chart_data.json.

Pre-registration

registration ordering unverified
first-spec commit 4c8ce8e · 2026-07-18T22:11:21Z
run generated · 2026-04-30T10:29:08Z
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.

China's property-sector deleveraging shock 2020-2024 — triggered by the August 2020 "three red lines" policy on developer leverage, escalating through Evergrande's September 2021 default, Country Garden's 2023 liquidity crisis, and the persistent ghost-cities inventory overhang — produced a structural break in residential investment and a sustained drag on aggregate growth that is identifiable in real GDP, gross capital formation, and the household-consumption share of GDP. Post-shock (2021-2024) annualised real GDP growth is at least 2 percentage points per year below the 2010-2019 trend, and gross fixed capital formation share of GDP falls by at least 3 percentage points peak-to-trough.

Falsification criterion — what would disprove this

set before the run · honoured after

This hypothesis is considered falsified if:

PRIMARY (dispositive): SUPPORTED if (a) mean real GDP-pc growth 2021-2024 is at least 2pp/yr below mean 2010-2019; AND (b) gross fixed capital formation share of GDP falls by at least 3pp from 2019 to 2024 trough. REFUTED if either condition reverses sign (post growth higher than pre, or capital formation share rising). INFORMATIVE (not gating): household-consumption share of GDP should NOT spike upward by >2pp (which would indicate rebalancing rather than pure drag).

formal test & threshold
test:      china_property_bust_growth_capital_formation_break_2020_2024
threshold: PRIMARY: gdp_growth(2021-2024) - gdp_growth(2010-2019) <= -0.02 AND gcf_pct_gdp(2024) - gcf_pct_gdp(2019) <= -3.0. METHOD_VALID: WDI NY.GDP.PCAP.KD.ZG and NE.GDI.FTOT.ZS available for CHN through 2024.

Method

Template
descriptive
Clustering
none
Sample
1 countries · 2008 – 2024
Evidence type
descriptive

Pre-post structural break comparison around 2020 three-red-lines policy. Visualise as kinked trend line for GDP growth and GFCF share. Robustness: rolling 3-year windows around the break date.

Data

VariableSourceTransform
real_gdp_growth
outcome
world_bank_wdi:NY.GDP.MKTP.KD.ZGtier 2
level
real_gdp_pc_growth
outcome
world_bank_wdi:NY.GDP.PCAP.KD.ZGtier 2
level
gross_fixed_capital_formation_pct_gdp
outcome
world_bank_wdi:NE.GDI.FTOT.ZStier 2
level
household_consumption_pct_gdp
outcome
world_bank_wdi:NE.CON.PRVT.ZStier 2
level
post_three_red_lines_indicator
treatment
constructed:indicator = 1 for years >= 2021tier 5
indicator

● ready  · ● pending  · ● reconstruct-needed

Detailed result card

Result card — china_extra_property_bubble_bust_2020_2024

Verdict: REFUTED — shape=pre_post, sign - OPPOSITE claim +; |Δ_log|=0.0358; threshold 2.0%, observed 3.6%

Pre-registration

  • Claim: China's property-sector deleveraging shock 2020-2024 — triggered by the August 2020 "three red lines" policy on developer leverage, escalating through Evergrande's September 2021 default, Country Garden's 2023 liquidity crisis, and the persistent ghost-cities inventory overhang — produced a structural break in residential investment and a sustained drag on aggregate growth that is identifiable in real GDP, gross capital formation, and the household-consumption share of GDP. Post-shock (2021-2024) annualised real GDP growth is at least 2 percentage points per year below the 2010-2019 trend, and gross fixed capital formation share of GDP falls by at least 3 percentage points peak-to-trough.
  • Falsification rule: PRIMARY (dispositive): SUPPORTED if (a) mean real GDP-pc growth 2021-2024 is at least 2pp/yr below mean 2010-2019; AND (b) gross fixed capital formation share of GDP falls by at least 3pp from 2019 to 2024 trough. REFUTED if either condition reverses sign (post growth higher than pre, or capital formation share rising). INFORMATIVE (not gating): household-consumption share of GDP should NOT spike upward by >2pp (which would indicate rebalancing rather than pure drag).
  • Falsification test: china_property_bust_growth_capital_formation_break_2020_2024

Comparison

  • shape: pre_post
  • country: CHN
  • cut_year: 2020
  • pre_mean: 42.443707129541345
  • post_mean: 40.95172021163728
  • delta: -1.4919869179040646
  • log_delta: -0.035784842798971095
  • n_pre: 12
  • n_post: 5

Extracted threshold: {'percent': 2.0}

Variables resolved

  • world_bank_wdi:NE.GDI.FTOT.ZS → gross_fixed_capital_formation_pct_gdp (outcome, publisher=world_bank_wdi, n=9870)

Variables missing data

  • world_bank_wdi:NY.GDP.MKTP.KD.ZG (outcome, name=real_gdp_growth)
  • world_bank_wdi:NY.GDP.PCAP.KD.ZG (outcome, name=real_gdp_pc_growth)
  • world_bank_wdi:NE.CON.PRVT.ZS (outcome, name=household_consumption_pct_gdp)
  • constructed: indicator = 1 for years >= 2021 (treatment, name=post_three_red_lines_indicator)

Generated by scripts/run_descriptive.py at 2026-04-30T10:29:08+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

China-specific structural break around the 2020 "three red lines" policy. Property-sector contraction is large enough in scale to dominate the aggregate national-accounts series; no donor pool needed. Cross-checks via residential-investment share, capital formation, and consumption share insulate against any single series being smoothed.

Authored framework. Read the transparency note.