The ECB and the Bank of Japan: Policy and Market Impact

The ECB and the BOJ

The ECB sets policy for the euro area and the Bank of Japan for Japan. Learn their mandates, tools like negative rates and yield curve control, and market effects.

Intermediate3 min readUpdated 3 Oct 2026

Lesson 13 of 17

After the Federal Reserve, the European Central Bank (ECB) and the Bank of Japan (BoJ) are two of the most important central banks for global markets. The ECB sets monetary policy for the countries that use the euro (21 since Bulgaria joined in January 2026); the BoJ sets policy for the world's fourth largest economy. Both spent years fighting low inflation with unconventional tools, including negative interest rates, and both affect currencies, bond markets and global carry trades. Their policy shifts can ripple through markets worldwide.

The European Central Bank#

Feature	Detail
Based in	Frankfurt
Mandate	Price stability; 2% inflation target over the medium term (symmetric since 2021)
Decision body	Governing Council: six Executive Board members plus the governors of euro area national central banks
Meetings	Monetary policy decisions every six weeks
Key rates	Deposit facility rate (main guide for markets), main refinancing rate, marginal lending rate

The ECB's challenges#

One policy, many economies: inflation and growth differ between Germany, Italy, Spain and others.
Sovereign spreads: gaps between Italian and German bond yields can widen in stress. The ECB created tools such as Outright Monetary Transactions (2012) and the Transmission Protection Instrument (2022) to counter disorderly spreads. See The European Debt Crisis.
"Whatever it takes": in July 2012, ECB President Mario Draghi pledged to do whatever it takes to preserve the euro, calming markets during the debt crisis.

Negative rates#

The ECB cut its deposit rate below zero in 2014, reaching minus 0.5% in 2019, then raised rates rapidly from July 2022 to fight inflation, reaching 4% in 2023 before cutting again from 2024.

The Bank of Japan#

Feature	Detail
Based in	Tokyo
Mandate	Price stability; 2% inflation target
Decision body	Policy Board of nine members
Meetings	Eight times a year

Decades of unconventional policy#

Policy	Period	Description
Zero interest rates	From 1999	Rates cut to near zero
Quantitative easing	2001 to 2006, then larger from 2013	Large purchases of government bonds
Qualitative and quantitative easing	From 2013 (under Governor Kuroda)	Massive bond buying plus ETFs and REITs
Negative rates	2016 to 2024	Short term rate of minus 0.1%
Yield curve control (YCC)	2016 to 2024	Capping the 10 year government bond yield near zero

In March 2024, under Governor Kazuo Ueda, the BoJ ended negative rates and yield curve control, its first rate increase in 17 years, and raised rates further later in 2024 and 2025.

Why these banks matter to traders#

Market	Effect
EUR/USD and USD/JPY	Rate differentials with the Fed drive these major pairs. See Interest Rate Differentials
Global bond yields	Japanese and European investors are large buyers of foreign bonds; policy changes shift those flows
Carry trades	Low BoJ rates made the yen a key funding currency
European banks	Negative rates squeezed bank profits; rate rises helped
Equities	Policy shifts affect valuations and currencies

Frequently asked questions#

What is the ECB's main interest rate?#

The deposit facility rate, which is the main guide for euro area money market rates.

What is yield curve control?#

A policy, used by the Bank of Japan from 2016 to 2024, of capping long term government bond yields by buying bonds as needed.

Why does the Bank of Japan matter for global markets?#

Because its very low rates made the yen a funding currency for global carry trades, and changes in its policy can trigger large currency and market moves.

Next, compare the tools of central banks and governments in Monetary vs Fiscal Policy.

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Next lessonMonetary vs Fiscal PolicyMonetary policy is run by central banks through rates and money; fiscal policy by governments through spending and taxes. Learn how each works and moves markets.