Policies·nigeria_tariff_reform_1988

Nigeria Tariff Reform 1988

NGA·1986 – 1993candidate

movestrade openness↑product market competition↑monetary expansion direction↑sectoral subsidy↓

What the policy did

Nigeria's 1988 customs tariff reform, decreed under the SAP, lowered and rationalised import duties with a new seven-year tariff structure that simplified rate bands, removed many specific duties in favour of ad valorem rates, and reduced peak rates significantly. The reform was intended to lower effective protection of import-substitution manufacturing and complement the SFEM exchange-rate liberalisation in restoring tradable-goods price signals.

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

↑

trade openness

regulatory.trade_openness

Trade policy openness — tariffs, non-tariff barriers, FTAs, industrial protection.

increased · weak

more open trade

Lower tariff peaks and simplified rate bands reduced the tariff barrier facing imported manufactures.

↑

product market competition

regulatory.product_market_competition

Product-market regulation, entry barriers, licensing burdens, network-industry regulation, price controls.

increased · weak

more competition-friendly (lower entry barriers)

Reduced effective protection forced previously sheltered domestic manufacturers to face import competition.

↑

monetary expansion direction

monetary.monetary_expansion_direction

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

increased · weak

expansionary (balance sheet, rates lower than Taylor)

Combined with SFEM, increased import-financed flows expanded transaction money supply through trade banks.

↓

sectoral subsidy

fiscal.sectoral_subsidy

Targeted industrial and sectoral subsidies (renewable energy, chip manufacturing, agriculture, green hydrogen, etc).

decreased · weak

reduced sectoral subsidies

Eliminated implicit subsidies embedded in selective high-tariff protection of favoured industries.

Enacted by

nigeria_buhari_sap_structural_adjustment_1986

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?".

Estonia adopted among the most radical market-liberalisation packages of any post-Soviet state — flat tax (26% universal rate, 1994), currency board (EEK pegged to DM/EUR, 1992), rapid privatisation, unilateral free trade, and minimal capital controls — and by 2007 had recovered to Soviet-era GDP per capita levels and substantially exceeded them, while Belarusian and Ukrainian peers had not recovered comparably.

estonia_market_reform_post_soviet_growth_1991_2007inferred

viaregulatory.trade_opennessregulatory.product_market_competition

PARTIAL — recovery threshold pass=True (year_recovered=1998, 2007 vs 1991 = 70.53282727739165); Baltic−CIS gap pass=False (gap=5.1509956229348575)

partial

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

viaregulatory.product_market_competitionmonetary.monetary_expansion_direction

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

run pending

Across a broad panel of economies 1980-2020, market reforms (privatisation, trade liberalisation, and price decontrol) produce durable gains in real GDP per capita growth only when rule-of-law scores exceed a minimum threshold (WGI Rule of Law > -0.5, approximately the 40th percentile of the global distribution).

rule_of_law_market_reform_complementarityinferred

viaregulatory.product_market_competitionregulatory.trade_openness

REFUTED — coef=-0.1483 (sign opposite claim +), p=0.00481

refuted

In a panel of middle-income countries 1990-2020, export complexity (Hausmann-Hidalgo Economic Complexity Index) rises more following reforms that improve foreign market access and reduce domestic entry barriers than following expansions of subsidy-only industrial policy.

export_complexity_market_access_vs_subsidyinferred

viaregulatory.trade_opennessfiscal.sectoral_subsidyregulatory.product_market_competition

PARTIAL — coef=+4.68e-14, p=0.393; effect magnitude effectively zero

partial

Canada’s long-run prosperity after the Canada–US Free Trade Agreement (1988) and NAFTA (1994) is more associated with market openness than with national industrial-policy initiatives.

canada_market_liberalisation_vs_state_industry_1988_2024inferred

viaregulatory.trade_opennessregulatory.product_market_competitionfiscal.sectoral_subsidy

INCONCLUSIVE_DATA_PENDING — treatment 'canada_post_1988' has no within-country variation under country fixed effects

run pending

Peru's 1990-1995 Fujimori shock-therapy package (price liberalisation, fiscal stabilisation under the August 1990 "Fujishock", Brady-style external debt restructuring 1996-1997, large-scale privatisation of SOEs, central-bank independence under the 1993 constitution, and trade liberalisation) produced a structural break in inflation and real-GDP per capita relative to Peru's 1985-1990 hyperinflation trajectory and relative to a Latin American peer pool that did not adopt comparable packages on the same timeline.

peru_fujimori_shock_therapy_1990_2000inferred

viaregulatory.product_market_competitionmonetary.monetary_expansion_directionregulatory.trade_openness

PARTIAL — mean_gap=-0.7927, |gap|/pre_sd=7.8, p_perm=0.4; claim direction ambiguous

partial

Among high-income economies 1990-2020, services-sector competition — measured by low barriers to entry, low incumbent-protection scores, and high churn in retail, transport, communications, and professional services — predicts long-run prosperity (real GDP per capita growth and labour-productivity growth) better than manufacturing-specific industrial policy spending.

sectoral_competition_services_productivityinferred

viaregulatory.product_market_competitionregulatory.trade_opennessfiscal.sectoral_subsidy

PARTIAL — coef=+0.000842, p=0.361 (above α=0.05); direction inconclusive

partial

Consumer product variety and price-adjusted welfare improve more after episodes of trade liberalisation and competition-policy reform than after state industrial-policy episodes of comparable duration and scale, in a panel of middle- and high-income countries 1980-2020.

consumer_choice_variety_trade_market_reforminferred

viaregulatory.trade_opennessfiscal.sectoral_subsidyregulatory.product_market_competition

INCONCLUSIVE_DATA_PENDING — treatment 'competition_reform_episode' has no within-country variation under country fixed effects

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.

New Economic Policy — Decree 21060 (Bolivia stabilisation 1985)

BOL·1985

match

2.1

trade opennessproduct market competitionsectoral subsidy

Czechoslovak price liberalisation 1991

CSK·1991

match

2.1

product market competitiontrade opennesssectoral subsidy

Rogernomics — New Zealand market reforms 1984-1990

NZL·1984