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Bank of Japan Explained: What Is the BoJ?

Plus500 | Tuesday 23 April 2024

The Bank of Japan (BoJ) holds a pivotal role in the global financial landscape as the central bank of the world's fourth-largest economy. The BoJ continually navigates economic challenges, striving to achieve price stability and sustained growth through the use of ultra-loose monetary policies and interest rates. In this article, we delve into the BoJ's latest policy decisions, economic outlook, and its crucial role in shaping Japan's financial trajectory.


Main Points:

  • The Bank of Japan (BoJ) serves as the central bank of Japan, independently managing currency, treasury securities, and monetary policy. Established in 1882, it has played a crucial role in transforming Japan's monetary landscape.

  • Led by Governor Haruhiko Kuroda, the BoJ's Policy Board, consisting of governors, auditors, executive directors, and counselors, governs currency and monetary controls. The institution focuses on ensuring price stability, with decisions made during Monetary Policy Meetings (MPMs) held eight times a year.

  • In the latest policy summit, held in January 2024, the BoJ decided to maintain ultra-loose monetary policies, including -0.1% interest rates and yield curve control. Governor Kazuo Ueda expressed confidence in the economy aligning with inflation projections, with a focus on gradual growth in underlying CPI inflation.

  • The BoJ faces challenges such as uncertainties in future developments and the need for wage growth. 

What Is the Bank of Japan?

The Bank of Japan (BoJ), also known as Nichigin, serves as the central bank of Japan, operating independently of the Japanese government. 

Headquartered in Tokyo's Nihonbashi business district, the BoJ plays a pivotal role in issuing and managing currency and treasury securities, implementing monetary policy, and ensuring the stability of the Japanese financial system. 

Despite not being a governmental administrative organisation, the bank's monetary policy aligns with the broader administrative framework. The BoJ's autonomy and independence are safeguarded to prioritise long-term public welfare and maintain political neutrality. 

From a macroeconomic perspective, the institution emphasises the importance of long-term price stability, while acknowledging the political sector's inclination towards short-term measures. 

In addition to its central banking functions, the BoJ compiles economic data, conducts research, and produces analyses to contribute to informed decision-making. (Source: Investopedia)

History of Bank of Japan

The Bank of Japan (BoJ) was established in 1882 and quickly played a crucial role in transforming Japan's fragmented monetary landscape. 

Before the Restoration, feudal fiefs issued diverse currencies, creating confusion with incompatible denominations. The New Currency Act of Meiji 4 (1871) addressed this by introducing the yen as a unified decimal currency, initially pegged to the Mexican silver dollar. With the transition from feudal fiefs to prefectures, their mints transformed into private chartered banks retaining money-printing rights.

In 1882, inspired by a Belgian banking model, the Bank of Japan was founded under the Bank of Japan Act 1882, becoming partly privately owned. The institution gained a monopoly on money supply control in 1884, marking a significant shift. The issuance of banknotes began in 1885. Japan adopted the gold standard in 1897, leading to the formal phase-out of "national" banknotes in 1899.

Despite interruptions during World War II and the post-war Occupation period, the Bank of Japan underwent reorganisation in 1942 and 1949. The 1970s saw changes in its operating environment, aligning with Japan's transition to a variable exchange rate and a more open economy. Throughout the post-war era until 1991, the BoJ primarily utilised 'window guidance' credit controls, imposing bank credit growth quotas on commercial banks. This approach, criticised for contributing to the 1980s 'bubble economy,' persisted until significant revisions were made to the Bank of Japan Act in 1997.

The 1997 revision aimed to enhance the BoJ's independence, though pre-existing concerns about excessive independence and lack of accountability lingered. Article 4 of the new law emphasised the need for close collaboration between the BoJ and the government, ensuring harmony between currency control and economic policy. 

However, despite these provisions, the Bank of Japan has resisted government requests to stimulate the economy, raising questions about the delicate balance between autonomy and cooperation in its operations.

BoJ Structure

The Bank of Japan (BoJ), led by Governor Haruhiko Kuroda since 2022, plays a crucial role in shaping the country's monetary policies

Appointed in 2013 and subsequently reappointed in April 2018, Kuroda, the 31st governor, has consistently advocated for a more lenient monetary policy. 

Assisting him are two deputy governors, six Policy Board members, auditors, counsellors, and executive directors, all collectively forming the Policy Board, the decisive body governing the bank's operations.

The Policy Board, comprising the governor, deputy governors, auditors, executive directors, and counsellors, sets the tone for currency and monetary controls, establishes operational guidelines, and supervises the responsibilities of bank officers. The bank's organisational structure encompasses 15 departments at its main office, along with 32 branches and 14 local offices.

In terms of monetary policy, the BoJ focuses on ensuring price stability. The Policy Board decides and enacts these policies during Monetary Policy Meetings (MPMs), conducted eight times a year over two days. The discussions during MPMs revolve around the nation's economic and financial status, guidelines for money market operations, and the immediate future's monetary policy stance. A majority vote from the nine-member Policy Board, including the governor, deputy governors, and six other members, determines the outcome. The decision-making process involves in-depth research and analysis of economic and financial conditions.

The BoJ places a strong emphasis on independence and transparency in its operations. Immediate release of monetary policy decisions after MPMs, regular press conferences by the governor, and the publication of the Summary of Opinions and minutes contribute to transparency. Furthermore, the bank releases transcripts a decade later, providing insight into Policy Board decisions and reinforcing its commitment to openness. This multifaceted approach to communication aims to foster public understanding and confidence in the Bank of Japan's monetary policies.


In conclusion, the Bank of Japan (BoJ) stands as a linchpin in the global financial arena, wielding influence over the world's fourth-largest economy. With a rich history dating back to its establishment in 1882, the BoJ has evolved through economic transformations, consistently prioritising price stability and sustained growth. The recent policy summit reaffirms the central bank's commitment to ultra-loose monetary policies and interest rates, aiming to steer the Japanese economy toward recovery. As the BoJ anticipates wage hikes and navigates uncertainties, its decisions not only shape Japan's financial trajectory but also resonate globally, underlining the delicate balance between autonomy and cooperation in its operations.


What is the BoJ policy board?

The Bank of Japan’s policy board is the highest decision-making body at the bank.

What is Nichigin?

Nichigin is another name for the Bank of Japan.

Who is the Bank of Japan Governor?

The current governor of the Bank of Japan is Haruhiko Kuroda.

What is the mission of the Bank of Japan?

The BoJ’s mission is to maintain fiscal stability in the country so as to enable economic growth.

Is the Bank of Japan privately owned?

No, the BoJ is neither privately owned nor a government agency.

Is the Bank of Japan independent?

Yes, the Bank of Japan is politically independent.

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