yen (currency)
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| yen (currency) | |
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| Name | Yen |
| Local name | 日本円 |
| Iso code | JPY |
| Introduced | 1871 |
| Issuer | Bank of Japan |
| Inflation rate | (see Monetary policy of Japan) |
| Subunit | 1/100 (historical) |
yen (currency) The yen is the official legal tender of Japan, administered by the Bank of Japan and used across Okinawa Prefecture, Hokkaido, Honshu, Shikoku, and Kyushu. Introduced in the early Meiji era, the yen replaced the mon (currency)-based system amid modernization efforts led by figures linked to the Meiji Restoration and the Iwakura Mission. As one of the world's major reserve currencies, the yen plays a central role in markets alongside the United States dollar, the euro, and the British pound sterling.
History
The yen was established by the New Currency Act under the Meiji government and institutionalized with the creation of the Bank of Japan in 1882, influenced by advisors connected to the German Empire and the United Kingdom. Early adoption linked to the Treaty of Amity and Commerce (United States–Japan) and industrial policies tied to the Mitsubishi and Sumitomo zaibatsu. During the First Sino-Japanese War and the Russo-Japanese War, fiscal pressures prompted changes to coinage and banking laws, while World War I and the Great Kantō earthquake affected circulation and finance. Interwar and World War II exigencies led to wartime issues and postwar reforms under the Allied occupation of Japan and directives by the Supreme Commander for the Allied Powers. The 1949 Yen revaluation and the 1971 end of the Bretton Woods system shifted the yen to a floating exchange rate, with later episodes—such as the Plaza Accord, the Japanese asset price bubble, and the Lost Decade—defining modern policy debates handled by the Ministry of Finance (Japan) and the Bank of Japan.
Denominations and Coinage
Modern circulating denominations include banknotes of ¥1,000, ¥5,000, and ¥10,000 issued by the Bank of Japan, and coins of ¥1, ¥5, ¥10, ¥50, ¥100, and ¥500 minted by the Japan Mint. Historical denominations encompassed the ¥50 and ¥1000 notes of prewar series, provincial issues during the Meiji era, and local scrip used in Ogasawara Islands and Ryukyu Islands administrations. Commemorative coin programs have used higher denominations like ¥5,000 and ¥10,000, coordinated with events such as the 1964 Summer Olympics in Tokyo and the 2020 Summer Olympics.
Design and Security Features
Banknote designs feature figures from Japanese history and culture, such as Natsume Sōseki, Ichiyo Higuchi, Prince Shōtoku, and Hideyo Noguchi, as well as scenes referencing Mount Fuji and traditional motifs linked to the Imperial House of Japan. Security elements include holograms developed in collaboration with firms linked to Nippon Telegraph and Telephone, intaglio printing by specialized presses used in the Japan Mint, microprinting influenced by techniques from the Bank of England, and watermarks comparable to those of the United States Federal Reserve. Coin designs incorporate bimetallic technology and edge lettering like innovations seen in European Union coinage, while anti-counterfeiting advances follow international standards promoted by the International Monetary Fund and the World Bank.
Monetary Policy and Issuance
Monetary policy for the yen is set by the Bank of Japan's Policy Board, operating within frameworks shaped by legislation including the Bank of Japan Act. Policy tools have ranged from orthodox interest-rate targeting to unconventional measures such as quantitative easing, implemented in coordination with fiscal authorities like the Ministry of Finance (Japan) and under scrutiny from global bodies including the International Monetary Fund and the Organisation for Economic Co-operation and Development. The Bank of Japan issues banknotes and works with the Japan Mint and regional branches to manage seigniorage, reserve requirements, and liquidity operations, often reacting to shocks like the Asian financial crisis, the Global Financial Crisis of 2007–2008, and the COVID-19 pandemic.
Exchange Rate and International Role
The yen is a major traded currency in the foreign exchange market, often paired in major currency crosses such as USD/JPY and EUR/JPY, and plays a significant role in carry trade strategies favored by investors during periods of low interest rates. Its exchange rate history features policy episodes linked to the Plaza Accord and interventions by the Ministry of Finance (Japan), with reserve status monitored by institutions like the International Monetary Fund. The yen's liquidity supports international bond issuance in Tokyo, and it figures in regional initiatives involving the Asia-Pacific Economic Cooperation and the Regional Comprehensive Economic Partnership.
Circulation, Cashless Payments, and Usage Trends
Circulation of physical yen has been affected by demographic shifts such as population aging in Japan and technology adoption driven by firms like Rakuten, SoftBank, and LINE Corporation offering mobile payment platforms. Cash usage remains relatively high compared with Sweden or China, though contactless services and QR-code systems promoted by the Ministry of Economy, Trade and Industry have expanded, influenced by retailers including 7-Eleven (Japan), FamilyMart, and Lawson. Banking infrastructure involving Japan Post Bank and major commercial banks such as Mitsubishi UFJ Financial Group, Sumitomo Mitsui Financial Group, and Mizuho Financial Group supports both cash and digital transactions.
Commemorative Issues and Collecting
Commemorative banknotes and coins mark events like the 1964 Summer Olympics, the 1998 Winter Olympics, imperial milestones of the Imperial House of Japan, and anniversaries of institutions including the Bank of Japan and the Japan Mint. Numismatists and collectors trade through auctions at houses such as Sotheby's and local forums connected to the National Diet Library exhibits, while specialized catalogs reference issues from the Meiji period to modern commemoratives. Collecting communities in Tokyo, Osaka, Nagoya, and online marketplaces maintain interest in rare patterns, trial strikes, and error coins produced across eras influenced by private zaibatsu mints and official strikes.