IESET.
Policies·jp_boj_quantitative_easing_2001_2006

Bank of Japan Quantitative Easing (2001-2006)

JPN·2001 – 2006·enacted 2001-03-19·LDP-Komeito (monetary policy set independently)candidate
movesmonetary expansion direction↑

What the policy did

Bank of Japan launched Quantitative Easing on 19 March 2001 — world's first unconventional monetary regime at scale. Policy board shifted operating target from uncollateralised overnight call rate to outstanding current-account balances held at the BoJ, initially targeted at ¥5tn, raised through 2004 to ¥30-35tn. Paired with forward-guidance commitment to maintain QE until CPI ex-fresh-food became stably non-negative. Also expanded JGB outright purchases and included ABS/ABCP purchases. Lifted on 9 March 2006 when core CPI condition was declared met; overnight target raised to 0.25% on 14 July 2006.

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.
increased · strong
expansionary (balance sheet, rates lower than Taylor)
First unconventional-monetary regime at scale; balance-sheet target raised 7x over 2001-2004.

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?".

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
Post-2008 large-scale asset purchase programmes by the Federal Reserve, ECB, Bank of England, and Bank of Japan produced a measurable divergence between asset-price inflation (equities and residential real estate) and headline consumer-price inflation until roughly 2021.
qe_asset_inflation_vs_cpi_divergence_post_2008inferred
viamonetary.monetary_expansion_direction
refuted — Only 2 of 8 countries had even a 0.10 log-point asset-vs-CPI gap by 2020 (mean GAP_2020 = -0.02). The post-2008 divergence story does not survive a pa…
refuted
In a panel of advanced economies 1987-2007, base-money expansion and broad money growth correlate positively with asset-price indices (equity, real estate) but only weakly with headline CPI inflation.
austrian_monetary_expansion_asset_bubble_not_cpi_panelinferred
viamonetary.monetary_expansion_direction
INCONCLUSIVE_DATA_PENDING — insufficient observations after listwise deletion (21)
run pending
Every documented modern hyperinflation episode (Cagan ≥50% monthly inflation, Hanke-Krus catalogue) since 1900 falls into one of two categories: (a) the issuing state had material foreign-currency or gold-clause obligations, hard-currency-pegged debt, or external market dependency that left it operating effectively as a currency-user (Weimar reparations, Hungary 1945-46 occupation obligations, Yugoslavia FX debt, Zimbabwe USD obligations 2007+, Venezuela USD oil revenue dependency, Argentina USD debt, Lebanon USD-pegged banking system, Turkey 2021-2024 FX-denominated debt), or (b) the issuing state experienced a documented physical supply collapse independent of the monetary regime (Weimar Ruhr occupation, Hungary post-WW2 occupation/reparation, Zimbabwe land-reform output collapse, Venezuela oil-sector collapse).
currency_user_vs_issuer_hyperinflation_classificationinferred
viamonetary.monetary_expansion_direction
INCONCLUSIVE_DATA_PENDING
run pending
Statutory price ceilings set below market-clearing prices reliably produce shortages, rationing via queue or privilege, quality degradation, and black-market arbitrage — across every documented episode where enforcement is sustained.
price_controls_produce_shortages_and_quality_degradationinferred
viamonetary.monetary_expansion_direction
INCONCLUSIVE_DATA_PENDING — insufficient pre-period coverage (years=41, donors=1)
run pending
Statutory price ceilings set below plausible market-clearing prices produce measurable shortage indicators — stockouts, queue formation, black-market emergence, quality degradation, and in monetary- expansion contexts, large divergences between official and parallel- market prices.
price_controls_shortage_effectinferred
viamonetary.monetary_expansion_direction
SUPPORTED — all 4 canonical episodes show the shortage signature (parallel ratio > 1.5 or post/pre inflation >= 1.5x). Aggregate event-time ATT (post 0..+5, log…
supported
Post-2008 quantitative easing operated principally through a Minsky-style financialisation channel — collateral-revaluation, portfolio-rebalancing into long-duration risk assets, and a yield-driven compression of risk premia — rather than through the textbook quantity-theoretic broad-money or expectations channels.
qe_financialisation_minsky_channel_2008_2021inferred
viamonetary.monetary_expansion_direction
INCONCLUSIVE_DATA_PENDING — insufficient observations after listwise deletion (14)
run pending
Abenomics' combined monetary-fiscal expansion lifted Japanese inflation and output partially but failed to durably escape the deflation equilibrium, consistent with NK models of near-permanent ZLB traps.
abenomics_monetary_fiscal_coordination_effectinferred
viamonetary.monetary_expansion_direction
SUPPORTED — shape=ITS, sign matches claim +, mean_gap=+6.836, z=+17
supported

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.

Ingreso Familiar de Emergencia (IFE) COVID transfer (2020)
ARG·2020
match
1.0
monetary expansion direction
Argentine hyperinflation (1989-1990)
ARG·1989
match
1.0
monetary expansion direction
Plano Bresser and Plano Verão (1987-1989)
BRA·1987
match
1.0
monetary expansion direction
Brazilian hyperinflation escalation 1989-1990
BRA·1989
match
1.0
monetary expansion direction
Fiscal dominance and monetary instability
COD·1975
match
1.0
monetary expansion direction
Four-Trillion-Yuan Stimulus (四万亿) 2008-2010
CHN·2008
match
1.0
monetary expansion direction
Danish krone serial devaluations in European snake 1976-1979
DNK·1976
match
1.0
monetary expansion direction
Iran Fifth Development Plan doubling 1974-78
IRN·1974
match
1.0
monetary expansion direction

References