IESET.
Policies·uk_regulatory_divergence_post_brexit

Regulatory Divergence Post Brexit

GBR·2016 2020candidate
movestrade opennessimmigration opennessproduct market competition~

What the policy did

The UK's post-Brexit regulatory-divergence programme, framed by the European Union (Withdrawal) Act 2018 and the Retained EU Law (Revocation and Reform) Act 2023, established the legal machinery for the UK to depart from inherited EU rules across financial services (Edinburgh Reforms), agriculture, chemicals (UK REACH), data protection, and product safety. The intended effect was to allow tailored UK-specific regulation, capture potential growth dividends from divergence, and signal regulatory sovereignty — even at the cost of border friction in goods trade with the EU and a reduction in deep regulatory market access.

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.
decreased · weak
more protectionist
Departure from the EU single market and customs union sharply raised border-friction trade costs.
immigration openness
regulatory.immigration_openness
Immigration policy openness — work visas, family reunification, asylum processing, border enforcement posture.
decreased · weak
more restrictive (lower caps, tighter enforcement)
End of EU free movement and points-based migration system raised barriers to lower-skilled inflows.
~
product market competition
regulatory.product_market_competition
Product-market regulation, entry barriers, licensing burdens, network-industry regulation, price controls.
mixed · weak
New domestic regulatory autonomy enabled both pro- and anti-competition divergence depending on sector.

Enacted by

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
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
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_competition
INCONCLUSIVE_DATA_PENDING — treatment 'canada_post_1988' has no within-country variation under country fixed effects
run pending
Australia’s long expansion after the Hawke-Keating reforms (1983–1996) — including tariff cuts, financial deregulation, competition-policy introduction, and fiscal consolidation — is better predicted by market liberalisation than by sector-specific state direction.
australia_hawke_keating_reform_long_runinferred
viaregulatory.trade_opennessregulatory.product_market_competition
PARTIAL — coef=-0.03935, p=0.076 (above α=0.05); direction inconclusive
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_competition
INCONCLUSIVE_DATA_PENDING — no outcome variable loaded; missing: ['derived: count of canonical_metrics with threshold met']
run pending
NZ Rogernomics 1984–1993 liberalisation (tariff removal, SOE corporatisation, financial-market liberalisation) produced productivity acceleration and real-income gains over 1990s–2000s relative to pre-reform trend.
nz_rogernomics_productivity_effectinferred
viaregulatory.trade_opennessregulatory.product_market_competition
refuted — NZ synthetic-control log-TFP gap mean over 1995-2005 = -3.80% (<= 0); informative log GDP-pc gap = -22.70%. Productivity acceleration claim not suppor…
refuted
Singapore's long-run prosperity and frontier convergence are better predicted by extreme trade openness, strong rule of law, competitive product and services markets, and high economic freedom than by state ownership or industrial targeting alone.
singapore_state_capacity_market_openness_comboinferred
viaregulatory.trade_opennessregulatory.product_market_competition
PARTIAL — coef=-0.0001143, p=0.713 (above α=0.1); direction inconclusive
partial
Rapid market liberalisation (price decontrol, mass privatisation, trade opening) under weak institutions produces large short-run welfare losses—rising mortality, falling life expectancy, rising inequality, and collapsing output—that may persist for at least a decade, compared to gradual reformers or non-reformers at similar initial income levels.
free_market_shock_therapy_social_costinferred
viaregulatory.product_market_competitionregulatory.trade_openness
PARTIAL — mean_gap=-3.156, |gap|/pre_sd=1.8, p_perm=0.367; claim direction ambiguous
partial

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.