Policies·ng_expulsion_of_aliens_1983

Nigeria 1983 expulsion of undocumented aliens

NGA·1983 – ·enacted 1983-01-17candidate

movesimmigration openness↓labour market flexibility↓

What the policy did

January-February 1983 mass expulsion of an estimated 2 million undocumented West African migrants (predominantly Ghanaian) in two-week window. Political response to pre-election unemployment pressure amid oil-bust recession. Damaged ECOWAS integration and Ghana-Nigeria relations; contributed to labour-market contraction in construction and services.

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

↓

immigration openness

regulatory.immigration_openness

Immigration policy openness — work visas, family reunification, asylum processing, border enforcement posture.

decreased · strong

more restrictive (lower caps, tighter enforcement)

Mass expulsion ended de facto regional labour mobility.

↓

labour market flexibility

regulatory.labour_market_flexibility

Ease of hiring/firing, collective-bargaining scope, minimum wage rigidity, temporary/permanent contract regulation.

decreased · weak

less flexible (stronger employment protection)

Sudden labour-supply shock disrupted informal sector and construction.

Enacted by

nigeria_shagari_second_republic_1979_1983

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?".

Countries with stricter employment protection legislation — measured by the OECD EPL indicator (or comparable alternatives where OECD EPL is missing) — experience longer average unemployment duration, holding other controls constant.

labour_market_flexibility_unemployment_durationinferred

viaregulatory.labour_market_flexibility

INCONCLUSIVE_DATA_PENDING — interaction term requested but no loadable constructed interaction variable is defined. The generic panel_fe runner would otherwise …

run pending

In a broad-country panel 1990-2019, greater labour-market flexibility — measured by lower OECD EPL overall strictness, higher ease-of-hiring scores, and absence of centralized wage bargaining — predicts higher employment-to- population ratios and faster real GDP per capita growth, controlling for institutional quality, education, and trade openness.

labour_market_flexibility_employment_growth_panelinferred

viaregulatory.labour_market_flexibility

PARTIAL — coef=-1.251, p=0.162 (above α=0.1); direction inconclusive

partial

Germany's Agenda 2010 labour-market reforms worked within the Ordoliberal framework precisely because they preserved collective-bargaining institutions and vocational-training architecture; the same reforms imposed on UK-style labour markets produced larger inequality increases.

labour_market_reform_institutional_complementarityinferred

viaregulatory.labour_market_flexibility

PARTIAL — coef=-7.366e+04, p=0.927 (above α=0.1); direction inconclusive

partial

Strong employment-protection legislation (EPL) with high union wage-setting coverage and limited at-will dismissal produces a three-order causal chain in Southern European labour markets.

strong_union_labour_law_youth_unemployment_south_europeinferred

viaregulatory.labour_market_flexibility

PARTIAL — coef=+2.943, p=0.252 (above α=0.05); direction inconclusive

partial

Labour-market flexibility (ease of hiring and firing, low EPL, decentralised wage bargaining) improves long-run employment rates, productivity growth, and GDP per capita only when paired with complementary adjustment institutions: active labour-market policy (retraining, job search assistance), relocation support, or income-smoothing mechanisms (unemployment insurance, portable benefits).

labour_flexibility_security_complementinferred

viaregulatory.labour_market_flexibility

PARTIAL — coef=+1.306e-16, p=0.339; effect magnitude effectively zero

partial

The net fiscal contribution of immigrants (taxes paid minus public services + transfers received, measured in lifetime NPV terms) varies systematically by (a) origin-country institutional quality, (b) skill level at arrival, (c) age at arrival, (d) duration of residence, and (e) legal status (working-age visa / family reunification / asylum).

immigration_net_fiscal_contribution_by_origin_skill_durationinferred

viaregulatory.immigration_opennessregulatory.labour_market_flexibility

SUPPORTED — coef=-1.127 (sign matches claim -), p=0.0206

supported

Labour-market flexibilisation reforms improve unemployment outcomes in countries with strong active-labour-market-policy (ALMP) complementarities (Denmark flexicurity post-1994, Germany Agenda 2010 / Hartz I-IV 2003-2005) but produce inequality increases without commensurate employment gains in countries lacking institutional ALMP infrastructure.

labour_market_reform_almp_complementarity_effectinferred

viaregulatory.labour_market_flexibility

SUPPORTED — coef=-5.815 (sign matches claim -), p=8.21e-05

supported

Per-capita crime rates (measured by police-recorded offences per 100k population, by offence type) among foreign-born residents in developed destination countries are NOT systematically higher than among native-born residents once age, gender, and socioeconomic status are controlled.

immigration_crime_rate_vs_native_controlledinferred

viaregulatory.immigration_opennessregulatory.labour_market_flexibility

INCONCLUSIVE_DATA_PENDING — no decomposition channel loaded; missing: ['constructed: % of group aged 15-34 (primary offending age band); WDI + destination-count…

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.

Nitaqat Saudisation programme

SAU·2011

match

1.5

labour market flexibilityimmigration openness

Labour migration median-wage salary threshold (Sweden 2023)

SWE·2023

match

1.4

immigration opennesslabour market flexibility

UK post-Brexit points-based immigration system 2021

GBR·2021