IESET.
Hypotheses·growth·austerity_output_recovery_tradeoff

Post-2010 European fiscal consolidation intensity negatively predicts subsequent output-gap closure speed and cumulative output over the 2010-2019 window, with the effect concentrated in the Eurozone periphery where the combination of sovereign spreads, no monetary- policy-at-country-level, and high initial output gaps produced a multiplier larger than the pre-crisis consensus assumed.

The hypothesis is consistent with the Blanchard-Leigh 2013 finding that IMF fiscal-multiplier assumptions were systematically too low in the early austerity period. The pre-registered claim is that in the Eurozone sample 2010-2019, countries with larger cyclically-adjusted primary-balance tightening over 2010-2013 experienced slower output- gap closure relative to the post-2008 trough, holding initial output gap and debt level constant. The core-vs-periphery split is expected to show the periphery effect substantially larger than the core effect.

PARTIALengine/runs/austerity_output_recovery_tradeoff

PARTIAL — coef=+1.667e-16, p=0.714; effect magnitude effectively zero

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

policy briefMixed or noisy

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 evidence is suggestive but not decisive. coef=+1.667e-16, p=0.714; effect magnitude effectively zero

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 21 country or place units from 2008 to 2019, using a iv 2sls design.

what was measured
What changed
  • Cyclically adjusted primary balance change
  • Periphery indicator
What we checked
  • Output gap closure speed
  • Cumulative real income 2010 to 2019
  • Unemployment cumulative
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

4 input datasets, 0 unresolved missing series, provenance status: reproducible hash verified.

Results

engine/runs/austerity_output_recovery_tradeoff
1007550250200820142019AUTBELDEUDNKESPFINFRA
illustrative sketch · run pending
No coefficients yet. When the model fires, this chart will show output_gap_closure_speed across 21 sampled countries over 2008–2019.
The shapes above are stylised — none of the lines are real data.
Placeholder for austerity_output_recovery_tradeoff. Published chart will be generated from engine/runs/austerity_output_recovery_tradeoff/chart_data.json.

Who has skin in the game — schools predicting on this

3 schools list this hypothesis as a test of their position. The chips below are school-level scoreboard outcomes, not a second hypothesis verdict.

hypothesis verdict vs scoreboard outcome

The banner verdict judges this hypothesis as written. The scoreboard asks whether each school's polarity-corrected prediction was right. Raw status is not a school win: SUPPORTED supports schools that needed SUPPORTED, but refutes schools that needed REFUTED.

New Keynesian (mainstream synthesis)wins if SUPPORTEDpartial/no-callPost-Keynesianwins if SUPPORTEDpartial/no-callSocial Democraticwins if SUPPORTEDpartial/no-call

Pre-registration

pre-registered
first-spec commit bae09ab · 2026-04-29T22:09:42Z
run generated · 2026-06-29T17:51:59Z

Post-2010 European fiscal consolidation intensity negatively predicts subsequent output-gap closure speed and cumulative output over the 2010-2019 window, with the effect concentrated in the Eurozone periphery where the combination of sovereign spreads, no monetary- policy-at-country-level, and high initial output gaps produced a multiplier larger than the pre-crisis consensus assumed. The hypothesis is consistent with the Blanchard-Leigh 2013 finding that IMF fiscal-multiplier assumptions were systematically too low in the early austerity period. The pre-registered claim is that in the Eurozone sample 2010-2019, countries with larger cyclically-adjusted primary-balance tightening over 2010-2013 experienced slower output- gap closure relative to the post-2008 trough, holding initial output gap and debt level constant. The core-vs-periphery split is expected to show the periphery effect substantially larger than the core effect.

Falsification criterion — what would disprove this

set before the run · honoured after

This hypothesis is considered falsified if:

PRIMARY (dispositive, downgraded to OLS — see methodology_note): cross-section OLS across the 21-country European panel of cumulative log-GDP growth 2010→2019 on Δ(general-govt net lending / GDP) 2010→2013 with periphery dummy and periphery×Δ-FB interaction. The hypothesis is SUPPORTED if β_core < 0 with |β_core| ≥ 0.5 pp-cumulative-growth per 1pp-of-GDP consolidation at p<0.05 AND β_periphery (= β_core + δ_interaction) is more negative than β_core (periphery effect larger as predicted). REFUTED if β_core is significantly POSITIVE at p<0.05 (consolidation associated with *more* growth, contradicting the austerity-damage claim and unable to be rescued by the OLS-vs-IV bias direction). INCONCLUSIVE if β_core is wrong-signed but not significant (consistent with the reverse-causality bias the IV was designed to remove) OR if data gates fail. INFORMATIVE: same-sign result on the unemployment cumulative-mean outcome; controlled-OLS robustness with debt-2010 and unemp-2010 as additional regressors. METHOD_VALID: ≥12 of 21 countries with treatment+outcome data; ≥6 periphery and ≥6 core countries.

formal test & threshold
test:      cross_section_ols_consolidation_growth_periphery_interaction
threshold: PRIMARY: beta_core < 0 AND |beta_core| >= 0.5 AND p < 0.05 AND beta_periphery < beta_core. REFUTED if beta_core > 0 at p < 0.05.

Method

Template
iv_2sls
Clustering
country
Sample
21 countries · 2008 – 2019
Evidence type
causal

Primary specification: 2SLS using the Blanchard-Leigh 2013 forecast-error approach. The first-stage regresses actual 2010-2013 CAPB change on IMF-forecast CAPB change as of the April 2010 WEO; the forecast error becomes the plausibly-exogenous instrument (countries did not systematically forecast-miss their own fiscal choices). Second stage regresses cumulative 2010-2019 output on instrumented consolidation. Alternative: panel FE on 2010-2019 with CAPB_change as regressor reported as robustness. Both specs interact consolidation with the periphery indicator.

Data

VariableSourceTransform
output_gap_closure_speed
outcome
oecd:OutputGaptier 2
annual_output_gap_narrowing_post_trough
cumulative_real_gdp_2010_to_2019
outcome
world_bank_wdi:NY.GDP.MKTP.KDtier 2
cumulative_log_growth_2010_to_2019
unemployment_cumulative
outcome
world_bank_wdi:SL.UEM.TOTL.ZStier 2
cumulative_mean_2010_to_2019
cyclically_adjusted_primary_balance_change
treatment
world_bank_wdi:GC.NLD.TOTL.GD.ZStier 2
change_in_capb_2010_to_2013
periphery_indicator
treatment
constructed:binary per countrytier 5
binary
initial_output_gap_2010
control
oecd:OutputGaptier 2
level_at_2010
initial_debt_to_gdp_2010
control
imf:GGXWDG_NGDPtier 2
level_at_2010
sovereign_spread_peak
control
ecb:financial_markets_yields_10yrtier 1
fred:IRLTLT01DEM156Ntier 1
max_spread_vs_bund_2010_to_2013
pre_crisis_current_account
control
world_bank_wdi:BN.CAB.XOKA.GD.ZStier 2
mean_2005_to_2007

● ready  · ● pending  · ● reconstruct-needed

Detailed result card

Result card — austerity_output_recovery_tradeoff

Verdict: PARTIAL — coef=+1.667e-16, p=0.714; effect magnitude effectively zero

Pre-registration

  • Claim: Post-2010 European fiscal consolidation intensity negatively predicts subsequent output-gap closure speed and cumulative output over the 2010-2019 window, with the effect concentrated in the Eurozone periphery where the combination of sovereign spreads, no monetary- policy-at-country-level, and high initial output gaps produced a multiplier larger than the pre-crisis consensus assumed. The hypothesis is consistent with the Blanchard-Leigh 2013 finding that IMF fiscal-multiplier assumptions were systematically too low in the early austerity period. The pre-registered claim is that in the Eurozone sample 2010-2019, countries with larger cyclically-adjusted primary-balance tightening over 2010-2013 experienced slower output- gap closure relative to the post-2008 trough, holding initial output gap and debt level constant. The core-vs-periphery split is expected to show the periphery effect substantially larger than the core effect.
  • Falsification rule: PRIMARY (dispositive, downgraded to OLS — see methodology_note): cross-section OLS across the 21-country European panel of cumulative log-GDP growth 2010→2019 on Δ(general-govt net lending / GDP) 2010→2013 with periphery dummy and periphery×Δ-FB interaction. The hypothesis is SUPPORTED if β_core < 0 with |β_core| ≥ 0.5 pp-cumulative-growth per 1pp-of-GDP consolidation at p<0.05 AND β_periphery (= β_core + δ_interaction) is more negative than β_core (periphery effect larger as predicted). REFUTED if β_core is significantly POSITIVE at p<0.05 (consolidation associated with more growth, contradicting the austerity-damage claim and unable to be rescued by the OLS-vs-IV bias direction). INCONCLUSIVE if β_core is wrong-signed but not significant (consistent with the reverse-causality bias the IV was designed to remove) OR if data gates fail. INFORMATIVE: same-sign result on the unemployment cumulative-mean outcome; controlled-OLS robustness with debt-2010 and unemp-2010 as additional regressors. METHOD_VALID: ≥12 of 21 countries with treatment+outcome data; ≥6 periphery and ≥6 core countries.
  • Falsification test: cross_section_ols_consolidation_growth_periphery_interaction

Estimate

  • Method: linearmodels.PanelOLS
  • Coefficient (treatment): +1.667e-16
  • Std error: 4.539e-16
  • p-value: 0.714
  • Observations: 240, countries: 20
  • Within R²: 1
  • Fixed effects: entity=True, time=True
  • Clustering: country

Variables resolved

  • oecd:OutputGap → output_gap_closure_speed (outcome, publisher=oecd, n=3331)
  • world_bank_wdi:NY.GDP.MKTP.KD → cumulative_real_gdp_2010_to_2019 (outcome, publisher=world_bank_wdi, n=12104)
  • world_bank_wdi:SL.UEM.TOTL.ZS → unemployment_cumulative (outcome, publisher=world_bank_wdi, n=6874)
  • world_bank_wdi:GC.NLD.TOTL.GD.ZS → cyclically_adjusted_primary_balance_change (treatment, publisher=world_bank_wdi, n=5147)
  • constructed: binary per country → periphery_indicator (treatment, publisher=constructed, n=252)
  • oecd:OutputGap → initial_output_gap_2010 (controls, publisher=oecd, n=3331)
  • imf:GGXWDG_NGDP → initial_debt_to_gdp_2010 (controls, publisher=imf, n=8113)
  • ecb:financial_markets_yields_10yr; fred:IRLTLT01DEM156N (DE bund ref) → sovereign_spread_peak (controls, publisher=fred, n=1491)
  • world_bank_wdi:BN.CAB.XOKA.GD.ZS → pre_crisis_current_account (controls, publisher=world_bank_wdi, n=7621)

Generated by scripts/run_panel_fe.py at 2026-06-29T17:51:59+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

This hypothesis and procyclical_fiscal_expansion_boom_bust are in tension but not contradictory: the former argues procyclical loosening in booms is harmful; the latter argues procyclical tightening in busts is also harmful. Both can simultaneously be true — the combined position is that countercyclical fiscal policy across the cycle delivers better outcomes than procyclical policy in either direction. Framework should surface the tension, not collapse into partisan reading of either.

Authored framework. Read the transparency note.