Policies·ng_naira_currency_change_1984

Nigeria naira banknote change April 1984

NGA·1984 – ·enacted 1984-04-25candidate

movesmonetary expansion direction↓property rights↓

What the policy did

Buhari-Idiagbon junta executed a surprise banknote change 25 April 1984 — new coloured notes replaced existing naira over a short exchange window, aiming to strand cash held by corrupt politicians and cross-border smugglers. Substantial hoards were invalidated. Raised short-run seigniorage; disrupted commercial circulation. Used as template by later African regimes.

Policy-content fingerprint — what this policy moved, on which axes

Per invariant 3, reforms are scored by what they did on each channel-separated axis, not by the party that enacted them. This fingerprint is how the policy-match engine finds historical analogues.

intended

↓

monetary expansion direction

monetary.monetary_expansion_direction

Direction of monetary-base expansion decisions relative to trend. Separate from fiscal.transfer_expansion even when correlated.

decreased · weak

contractionary (balance sheet shrink, rates above Taylor)

Temporary contraction of circulating currency via stranded notes.

↓

property rights

institutional.property_rights

Security of private property rights — formal recognition, expropriation risk, titling systems.

decreased · moderate

weaker property rights

Unannounced invalidation of existing notes effected wealth expropriation.

Enacted by

nigeria_buhari_military_1983_1985

Empirical evidence — linked hypotheses

Explicit links are curated by the author. Inferred links are hypotheses in the library that test the same axes this policy moved — the framework's answer to "what does the data say about a policy like this?".

Zimbabwean property-rights deterioration post-2000 (commercial-farm expropriation without compensation) precedes hyperinflation and output collapse; institutional mechanism is necessary, not merely monetary.

zimbabwe_property_rights_output_linkinferred

viainstitutional.property_rightsmonetary.monetary_expansion_direction

INCONCLUSIVE_DATA_PENDING

run pending

Zimbabwe's Fast Track Land Reform Programme (FTLRP, 2000-2002) combined with Reserve Bank of Zimbabwe deficit monetisation produced a canonical institutional and economic collapse 2000-2009 that manifests as >=7 of 10 pre-registered extreme-outcome metrics, each drawn from an independent data source and measuring a different causal layer (agricultural-capacity destruction, monetary collapse, output contraction, human-capital flight, humanitarian stress).

zimbabwe_hyperinflation_land_reform_output_collapse_2000_2009inferred

viainstitutional.property_rightsmonetary.monetary_expansion_direction

INCONCLUSIVE_DATA_PENDING — no outcome variable loaded; missing: ['derived: count of canonical_metrics with threshold met']

run pending

The Soviet central-planning system, having already exhibited TFP stagnation 1970-1989, underwent a canonical institutional and economic collapse 1989-1998 as plan-enforcement was withdrawn without functioning market institutions in place.

soviet_union_central_planning_gdp_collapse_1989_1991inferred

viainstitutional.property_rightsmonetary.monetary_expansion_direction

INCONCLUSIVE_DATA_PENDING — no outcome variable loaded; missing: ['derived: count of canonical_metrics with threshold met']

run pending

Venezuela's post-1999 socialist policy regime (Chávez 1999-2013 + Maduro 2013-present, characterised by FX controls, price controls, mass nationalisations, PDVSA politicisation, and 2014+ monetary financing of fiscal deficits) produced a canonical institutional and economic collapse that manifests as ≥7 of 10 pre-registered extreme-outcome metrics, each drawn from an independent data source and measuring a different causal layer.

venezuela_chavismo_canonical_case_multi_metricinferred

viamonetary.monetary_expansion_directioninstitutional.property_rights

INCONCLUSIVE_DATA_PENDING — no outcome variable loaded; missing: ['derived: count of canonical_metrics with threshold met']

run pending

Zimbabwean land reform 2000-2008 redistributed ownership to previously excluded populations; the inflation crisis was driven by external sanctions and fiscal-military pressures, not by the redistributive policy itself.

zimbabwe_land_reform_cause_decompositioninferred

viamonetary.monetary_expansion_directioninstitutional.property_rights

INCONCLUSIVE_DATA_PENDING — insufficient observations after listwise deletion (0)

run pending

Across the 2008-2014 ZLB era and the 2020-2021 pandemic-response window, large-scale de-facto monetary finance of fiscal expansion in the US, Japan, and the Eurozone did not produce headline-CPI inflation consistent with naive quantity-theoretic monetisation predictions: cumulative central-bank balance-sheet expansion exceeded 15% of GDP while CPI YoY remained below 3% in each economy across both windows.

monetary_finance_zlb_no_inflationinferred

viamonetary.monetary_expansion_direction

REFUTED — CPI threshold breach: USA zlb_2008_2014 peak 3.81% in 2008; USA covid_2020_2021 peak 4.68% in 2021; Eurozone CPI not loaded

refuted

Starting from comparable 1945 post-war conditions — same ethnicity, language, pre-war German institutional and industrial inheritance, and with the GDR inheriting a larger share of pre-war industrial capital in Saxony and Thuringia — the Federal Republic's Soziale Marktwirtschaft (Ordoliberal market economy with welfare state) versus the German Democratic Republic's planned economy with administered prices, state-enterprise production, and soft budget constraints produced by 1989 a canonical divergence that pattern-matches >=7 of 10 pre-registered extreme-outcome metrics, each drawn from a different publisher or methodology family.

west_east_germany_economic_system_divergence_1950_1989inferred

viainstitutional.property_rights

INCONCLUSIVE_DATA_PENDING — no outcome variable loaded; missing: ['derived: count of canonical_metrics with threshold met']

run pending

Cuba's post-1959 socialist policy regime (Castro 1959-2008 + Raúl 2008-2018 + Díaz-Canel 2018-present, characterised by single-party rule, state ownership of most productive assets, ration-card consumption, FX duality, and chronic suppression of private enterprise) produced a canonical 60-year material stagnation that manifests as ≥7 of 10 pre-registered extreme-outcome metrics, each drawn from an independent data source and measuring a different causal layer.

cuba_socialist_economy_stagnation_1960_2023inferred

viamonetary.monetary_expansion_directioninstitutional.property_rights

INCONCLUSIVE_DATA_PENDING — no outcome variable loaded; missing: ['derived: count of canonical_metrics with threshold met']

run pending

Similar historical policies

Ranked by axis-fingerprint overlap with this policy. Direction match bolded — those are the closest historical analogues. Shape of the match is what drives policy-outcome comparison, not the country or party label.

Plano Collor I — asset freeze (March 1990)

BRA·1990

match

1.4

property rightsmonetary expansion direction

September 1985 currency reform and hyperinflation (Vietnam)

VNM·1985

match

1.2

monetary expansion directionproperty rights

Zimbabwe ZiG currency launch 2024

ZWE·2024