IESET.
Hypotheses·regulatory·germany_decline_2018_2025_regulatory_not_fiscal

German industrial gross value added, manufacturing output, and real household income diverged materially from a synthetic-Germany donor- pool counterfactual over 2018-2025, and a variance decomposition across candidate channels attributes the majority of the divergence to regulatory-channel factors (Environmental Policy Stringency index increase post-2017, nuclear-phase-out schedule, single-supplier Russian gas dependency lock-in, industrial emission and reporting rules) rather than to fiscal-channel factors (general government consumption and tax burden were broadly stable across the Merkel late-term and Scholz years, with the debt brake in effect until 2023).

The hypothesis is a companion to the Energiewende electricity-price hypothesis but tests the broader claim that the observed German industrial decline over this window is a regulatory/energy-policy story, not a fiscal-policy story, and a null (fiscal channel dominates) would meaningfully restructure the framework's reading of the German case.

PARTIALengine/runs/germany_decline_2018_2025_regulatory_not_fiscal

partial — DEU below synthetic by -0.251 cumulative over 2018-2022 (sign correct), but magnitude or placebo p=0.36363636363636365 below pre-registered thresholds. Regulatory-vs-fiscal channel split unresolved (data-gated).

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. DEU below synthetic by -0.251 cumulative over 2018-2022 (sign correct), but magnitude or placebo p=0.36363636363636365 below pre-registered thresholds.

why it matters

This matters because regulatory claims should change belief only when they survive a pre-declared empirical test.

how the test works

It compares 12 country or place units from 2005 to 2025, using a synthetic control design, with fixed effects for country and year.

what was measured
What changed
  • Deu post 2018 dummy
Possible pathway
  • Environmental policy stringency index
  • Industrial electricity price log
What we checked
  • Log industrial gva real
  • Log manufacturing va real
  • Real household disposable income pc
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/germany_decline_2018_2025_regulatory_not_fiscal
Loading chart…

Who has skin in the game — schools predicting on this

17 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.

Austrian Business Cycle Theory (ABCT)wins if SUPPORTEDpartial/no-callChicago School Monetarismwins if SUPPORTEDpartial/no-callClassical Liberalwins if SUPPORTEDpartial/no-callDegrowth / Ecological Macroeconomicswins if REFUTEDpartial/no-callDemocratic Socialism (Bernsteinian revisionism + modern)wins if REFUTEDpartial/no-callStructuralist / Developmentalistwins if MIXEDpartial/no-callEco-Socialism / Red-Greenwins if REFUTEDpartial/no-callEmpirical Pragmatist (the framework's house position)wins if MIXEDpartial/no-callNew Institutional Economicswins if MIXEDpartial/no-callMarket Socialism (Lange-Lerner tradition)wins if REFUTEDpartial/no-callMarxian Political Economywins if REFUTEDpartial/no-callMarxism-Leninism (central-planning implementation)wins if REFUTEDpartial/no-callModern Monetary Theorywins if REFUTEDpartial/no-callNew Keynesian (mainstream synthesis)wins if MIXEDpartial/no-callOrdoliberalism (Freiburg School)wins if SUPPORTEDpartial/no-callPost-Keynesianwins if REFUTEDpartial/no-callSocial Democraticwins if REFUTEDpartial/no-call

Pre-registration

pre-registered
first-spec commit 4c8ce8e · 2026-07-18T22:11:21Z

German industrial gross value added, manufacturing output, and real household income diverged materially from a synthetic-Germany donor- pool counterfactual over 2018-2025, and a variance decomposition across candidate channels attributes the majority of the divergence to regulatory-channel factors (Environmental Policy Stringency index increase post-2017, nuclear-phase-out schedule, single-supplier Russian gas dependency lock-in, industrial emission and reporting rules) rather than to fiscal-channel factors (general government consumption and tax burden were broadly stable across the Merkel late-term and Scholz years, with the debt brake in effect until 2023). The hypothesis is a companion to the Energiewende electricity-price hypothesis but tests the broader claim that the observed German industrial decline over this window is a regulatory/energy-policy story, not a fiscal-policy story, and a null (fiscal channel dominates) would meaningfully restructure the framework's reading of the German case.

Falsification criterion — what would disprove this

set before the run · honoured after

This hypothesis is considered falsified if:

Not supported if (a) the DEU synthetic-control pre-trend fit fails (pre-treatment RMSPE on industrial GVA > 0.04 log points), OR (b) the post-2018 DEU-synthetic gap does not exceed the 90th percentile of placebo gaps across the donor pool at a 5-year-cumulative horizon, OR (c) the variance decomposition assigns less than 40% of the explained gap to the regulatory channel bundle, OR (d) the fiscal channel bundle explains more of the gap than the regulatory channel bundle does on the primary outcome. A null or reversed result would restructure the framework's reading of the German case toward fiscal or demographic explanations.

formal test & threshold
test:      deu_synthetic_control_plus_regulatory_vs_fiscal_variance_decomposition
threshold: post-2018 DEU-synthetic gap on log industrial GVA <= -0.05 (5-yr cumulative)  AND placebo permutation p-value < 0.10  AND regulatory_channel_share_of_explained_gap >= 0.40  AND regulatory_channel_share > fiscal_channel_share

Method

Template
synthetic_control
Fixed effects
country, year
Clustering
country
Sample
12 countries · 2005 – 2025
Evidence type
causal

Primary specification: synthetic control with DEU as treated unit (treatment = 2018). Donor pool = FRA, NLD, BEL, ITA, ESP, POL, CZE, AUT, SWE, FIN, USA. Pre-treatment fit window 2005-2017. Primary outcome = log industrial GVA real. Placebo permutation tests. Pre-trend RMSPE reported. Secondary specification: variance decomposition. Regress the DEU- synthetic gap on the panel of candidate channels interacted with a DEU-indicator, reporting what share of the post-2018 gap each channel explains. Compare the regulatory-channel share (EPS + electricity price + Russia gas share) to the fiscal-channel share (gov consumption + tax revenue + debt) and to the alternative- explanation share (China competition + migration + demographics). The headline number is the ratio of regulatory-to-fiscal explained shares of the gap. Tertiary specification: same synthetic control on manufacturing VA and on household disposable income per capita, to establish whether the regulatory-channel signal transmits beyond industrial output. Known limitations: (a) The 2020-2021 COVID and 2022-2023 energy-shock windows are confounders. Results reported with and without those windows. (b) DEU is the sole treated unit; external validity is narrow to the German case. The hypothesis does not claim a general "regulation beats fiscal" relationship outside Germany. (c) Key channel variables (EPS index, IEA industrial electricity price, Russian gas import share) are pending fetchers; v1 is data-gated and will not produce a final result until those ship. The pre-registration locks the specification now so that when data lands the analysis runs without degrees of freedom. (d) "Regulatory vs fiscal" is a binary the data can refuse; both channels being jointly important is an allowed outcome and weakens the hypothesis without falsifying it outright.

Data

VariableSourceTransform
log_industrial_gva_real
outcome
world_bank_wdi:NV.IND.TOTL.KDtier 2
log
log_manufacturing_va_real
outcome
world_bank_wdi:NV.IND.MANF.CDtier 2
log_real
real_household_disposable_income_pc
outcome
constructed:OECD SDD household disposable income per capita real; WDI NY.GDP.PCAP.KD fallback. Specialist OECD fetcher pending.tier 5
log
deu_post_2018_dummy
treatment
constructed:indicator = 1 for DEU from 2018 onward (post-Merkel-IV-coalition formation + Energy Collection Act tightening + Nord Strtier 5
indicator
environmental_policy_stringency_index
channel
oecd:OECD.ENV.EPItier 2
level
industrial_electricity_price_log
channel
constructed:IEA industrial electricity price, band IC, USD/MWh. Specialist IEA fetcher pending.tier 5
log
russian_gas_import_share
channel
constructed:IEA/Eurostat natural gas imports from Russia / total natural gas imports. Pending fetcher.tier 5
level
general_government_consumption_pct_gdp
channel
world_bank_wdi:NE.CON.GOVT.ZStier 2
level
tax_revenue_pct_gdp
channel
world_bank_wdi:GC.TAX.TOTL.GD.ZStier 2
level
debt_to_gdp
channel
imf:GGXWDG_NGDPtier 2
level
log_population
control
world_bank_wdi:SP.POP.TOTLtier 2
log
working_age_population_share
control
world_bank_wdi:SP.POP.1564.TO.ZStier 2
level
trade_openness
control
world_bank_wdi:NE.TRD.GNFS.ZStier 2
level
china_industrial_production_index_log
control
constructed:China NBS industrial production index; pending fetcher.tier 5
log
net_migration_rate
control
world_bank_wdi:SM.POP.NETMtier 2
level

● ready  · ● pending  · ● reconstruct-needed

Detailed result card

Result card — German decline 2018-2025: regulatory not fiscal

Verdict: partial — DEU below synthetic by -0.251 cumulative over 2018-2022 (sign correct), but magnitude or placebo p=0.36363636363636365 below pre-registered thresholds. Regulatory-vs-fiscal channel split unresolved (data-gated).

Outcome: log industrial GVA real (WDI NV.IND.TOTL.KD), rebased per country. Treated: DEU. Donors used: FRA, NLD, BEL, ITA, ESP, POL, CZE, AUT, SWE, FIN. Pre 2005-2017, post 2018-2025.

Synthetic control fit

| Metric | Value | |---|---:| | Pre-period RMSPE | 0.0271 | | Post-period RMSPE | 0.0872 | | Post/Pre RMSPE ratio | 3.21 | | Mean post-2018 gap | -0.072 log | | Cumulative 5-yr gap (2018-2022) | -0.251 log-yr | | Placebo rank | 4/11 | | Placebo p-value | 0.36363636363636365 |

Donor weights

| Donor | Weight | |---|---:| | FRA | 0.000 | | NLD | 0.000 | | BEL | 0.000 | | ITA | 0.000 | | ESP | 0.000 | | POL | 0.183 | | CZE | 0.000 | | AUT | 0.333 | | SWE | 0.484 | | FIN | 0.000 |

Post-period gap

| Year | DEU (rebased) | Synth | Gap | |---:|---:|---:|---:| | 2018 | 0.220 | 0.213 | +0.007 | | 2019 | 0.207 | 0.231 | -0.024 | | 2020 | 0.146 | 0.197 | -0.051 | | 2021 | 0.191 | 0.253 | -0.062 | | 2022 | 0.171 | 0.293 | -0.122 | | 2023 | 0.147 | 0.263 | -0.116 | | 2024 | 0.107 | 0.241 | -0.134 |

Fiscal-channel partial check (degraded)

Available channels: debt_gdp, trade_open

  • debt_gdp_deu_delta_2017_to_2023 = -1.700
  • debt_gdp_donor_avg_delta_2017_to_2023 = +2.291
  • debt_gdp_deu_minus_donor_delta = -3.991
  • trade_open_deu_delta_2017_to_2023 = +4.508
  • trade_open_donor_avg_delta_2017_to_2023 = +5.006
  • trade_open_deu_minus_donor_delta = -0.498

Regulatory-channel status: PENDING (OECD EPS, IEA elec price, Russia gas share fetchers required)

Data-status caveat

The hypothesis's HEADLINE test is the regulatory-vs-fiscal variance decomposition of the post-2018 synthetic gap. Running it requires:

  • OECD Environmental Policy Stringency index — pending
  • IEA industrial electricity price — pending
  • Russian gas import share — pending
  • China industrial-production index — pending
  • OECD SDD household disposable income — pending

v1 here runs the synthetic-control divergence only. The verdict gates on the synthetic-control component of the falsification rule; the regulatory-vs-fiscal channel-attribution component is reported as PENDING and does not contribute to the verdict. When the four pending fetchers ship, v1.1 reruns and the verdict resolves cleanly.

Steelman-live concerns

  1. 2020-2021 COVID and 2022-2023 Russia-Ukraine energy shock are large confounds in the post-2018 window; sensitivities pending.
  2. DEU sole treated unit; external validity narrow.
  3. The 'regulatory-vs-fiscal' framing requires both bundles fully measured to evaluate — currently fiscal-side has WDI gov consumption + IMF debt/GDP available; regulatory-side awaits EPS + IEA + gas-share.
  4. Industrial GVA reflects sector-mix shifts (e.g. EVs, software) independent of the regulatory channel.

Provenance

Reproduces from vintages in manifest.yaml. See replication.py.

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 is mega-spec D.1 #3, the flagship German-decline case. It is deliberately designed so that the regulatory-vs-fiscal decomposition is the primary falsifier, rather than a "did Germany decline" question (which is not in serious empirical dispute). Data readiness: - WDI NV.IND.TOTL.KD, NV.IND.MANF.CD (ready) - WDI NE.CON.GOVT.ZS, GC.TAX.TOTL.GD.ZS (ready) - IMF GGXWDG_NGDP (ready) - WDI SP.POP.*, NE.TRD.GNFS.ZS, SM.POP.NETM (ready) - OECD EPS (pending — framework data-gated) - IEA industrial electricity price (pending) - Russian gas import share (pending) - China industrial production index (pending) - OECD SDD HH disposable income (pending) v1 pre-registers the full specification and runs partially on the ready data; the regulatory-vs-fiscal decomposition waits on EPS + IEA + gas share fetchers.

Authored framework. Read the transparency note.