The or 'en' is the
currency of
Japan. It is also widely used as a
reserve currency after the
United States dollar, the
euro and the
pound sterling. The
ISO 4217 codes for the yen are JPY and 392. The
Latinised
symbol is '¥' while in Japanese it is also written with the
kanji . While not a usage specific to currency, large quantities of yen are often counted in multiples of 10,000 (''man'', 万) in the same way as values in the
United States are often quoted or rounded off to hundreds or thousands.
Etymology
In standard
Japanese, the yen is pronounced "en" but the spelling and pronunciation of "yen" is standard in
English, due to a historical
Portuguese transliteration. The inclusion of the letter ''y'' is based on
romanization of an obsolete writing of the word which included the
kana ゑ (ye/we), examples of which can also be found in such words as ''
Yebisu'', ''
Iyeyasu'', and ''
Yedo'' (it was still pronounced, however, as ''e''). Like the spellings of names of people outside Japan, the romanization of ''yen'' has become a permanent feature. ''En'' literally means "round object" in Japanese, as yuan does in Chinese, referring to the ancient Chinese coins that were circular in shape and widely used in Japan up to the
Tokugawa Period. In 1695, the shogunate placed the Japanese character ''gen'' (元), meaning ''"yuan"'' on the obverse of copper coins.
[1]
History
Introduction

1 yen convertible silver note issued in 1885
The yen was introduced by the
Meiji government in 1870 as a system resembling those in
Europe. The yen replaced the complex monetary system of the
Edo period, based on the
mon. The ''New Currency Act'' of
1871 stipulated the adoption of the decimal accounting system of yen (1, 圓), sen (, 錢), and rin (, 厘), with the coins being round and cast as in the West. The yen was legally defined as 0.78
troy ounces (24.26 g) of pure silver, or 1.5 grams of pure gold. The same amount of silver is worth about 1181 modern yen,
[2] while the same amount of gold is worth about 3572 yen.
[3] The Act also moved Japan onto the
gold standard. (The sen and the rin were eventually taken out of circulation at the end of
1953.
[4])
Fixed value of the yen to the US dollar
The yen lost most of its value during and after
World War II. After a period of instability, in
1949, the
value of the yen was fixed at ¥360 per
US$1 through a United States plan, which was part of the
Bretton Woods System, to stabilize prices in the
Japanese economy. That
exchange rate was maintained until
1971, when the United States abandoned the
gold standard, which had been a key element of the Bretton Woods System, and imposed a
10 percent surcharge on
imports, setting in motion changes that eventually led to
floating exchange rates in
1973.
An undervalued yen
By 1971 the yen had become undervalued. Japanese
exports were costing too little in international markets, and imports from abroad were costing the Japanese too much. This undervaluation was reflected in the
current account balance, which had risen from the
deficits of the early
1960s to a then-large
surplus of U.S. $5.8 billion in 1971. The belief that the yen, and several other major currencies, were undervalued motivated the United States' actions in 1971.
The yen and major currencies float
Following the United States' measures to devalue the dollar in the summer of 1971, the Japanese government agreed to a new, fixed exchange rate as part of the
Smithsonian Agreement, signed at the end of the year. This agreement set the exchange rate at ¥308 per US$1. However, the new fixed rates of the Smithsonian Agreement were difficult to maintain in the face of supply and demand pressures in the foreign-exchange market. In early 1973, the rates were abandoned, and the major nations of the world allowed their currencies to float.
Japanese government intervention in the currency market
In the
1970s, Japanese government and business people were very concerned that a rise in the value of the yen would hurt export growth by making Japanese products less competitive and would damage the industrial base. The government therefore continued to intervene heavily in foreign-exchange marketing (buying or selling dollars), even after the 1973 decision to allow the yen to float.
Despite intervention, market pressures caused the yen to continue climbing in value, peaking temporarily at an average of ¥271 per US$1 in
1973 before the impact of the
1973 oil crisis was felt. The increased costs of imported
oil caused the yen to depreciate to a range of ¥290 to ¥300 between
1974 and
1976. The re-emergence of trade surpluses drove the yen back up to ¥211 in
1978. This currency strengthening was again reversed by the
second oil shock in 1979, with the yen dropping to ¥227 by
1980.
The yen in the early 1980s
During the first half of the
1980s, the yen failed to rise in value even though current account surpluses returned and grew quickly. From ¥221 in
1981, the average value of the yen actually dropped to ¥239 in
1985. The rise in the current account surplus generated stronger demand for yen in foreign-exchange markets, but this trade-related demand for yen was offset by other factors. A wide differential in
interest rates, with United States interest rates much higher than those in Japan, and the continuing moves to
deregulate the international flow of
capital, led to a large net outflow of capital from Japan. This capital flow increased the supply of yen in foreign-exchange markets, as Japanese investors changed their yen for other currencies (mainly dollars) to invest overseas. This kept the yen weak relative to the dollar and fostered the rapid rise in the Japanese trade surplus that took place in the 1980s.
The effect of the Plaza Accord
In
1985 a dramatic change began. Finance officials from major nations signed an agreement (the
Plaza Accord) affirming that the dollar was overvalued (and, therefore, the yen undervalued). This agreement, and shifting supply and demand pressures in the markets, led to a rapid rise in the value of the yen. From its average of ¥239 per US$1 in 1985, the yen rose to a peak of ¥128 in
1988, virtually doubling its value relative to the dollar. After declining somewhat in
1989 and
1990, it reached a new high of ¥123 to US$1 in December
1992. In April 1995, the yen hit a peak of under 80 yen per dollar, temporarily making Japan's economy nearly the size of the US.
Post-bubble years
The yen declined during the
Japanese asset price bubble and continued to do so afterwards, reaching a low of ¥134 to US$1 in February 2002. The
Bank of Japan's policy of zero
interest rates has discouraged yen investments, with the
carry trade of investors borrowing yen and investing in better-paying currencies further pushing down the yen estimated to be as large as $1
trillion.
[5] In February 2007, ''
The Economist'' estimated that the yen is 15% undervalued against the dollar and as much as 40% undervalued against the euro.
[6]
Coins

A silver one-yen coin of 1870
Coins were introduced in 1870. There were silver 5, 10, 20 and 50 sen and 1 yen, and gold 2, 5, 10 and 20 yen. Gold 1 yen were introduced in 1871, followed by copper 1 rin, ½, 1 and 2 sen in 1873.
Cupronickel 5 sen coins were introduced in 1889. In 1897, the silver 1 yen coin was demonetized and the sizes of the gold coins were reduced by 50%, with 5, 10 and 20 yen coins issued. In 1920, cupro-nickel 10 sen coins were introduced.
Production of silver coins ceased in 1938, after which a variety of base metals were used to produced 1, 5 and 10 sen coins during the
Second World War. Clay 5 and 10 sen coins were produced in 1945 but not issued for circulation.
After the war, brass 50 sen, 1 and 5 yen were introduced between 1946 and 1948. In 1949, the current type of holed 5 yen was introduced, followed by bronze 10 yen (of the type still in circulation) in 1951.
Coins in denominations of less than 1 yen became invalid on
December 31,
1953, following enforcement of the .
In 1955, the current type of aluminium 1 yen was introduced, along with unholed, nickel 50 yen. In 1957, silver 100 yen pieces were introduced. These were replaced in 1967 by the current, cupro-nickel type, along with the holed 50 yen coin. In 1982, the first 500 yen coins were introduced.
[7]
The date is on the reverse of all coins, and, in most cases, the name 日本国, Nihonkoku (Japan) and the value in kanji is on the obverse, except for the 5-yen where Nihonkoku is on the reverse.
500 yen coins are probably the highest valued coins to be used regularly in the world (with rates in the neighbourhood of US$4.10, €3.05, and £2.10). The United States' largest-valued commonly-used coin (25¢) is worth around 26 yen; the
Eurozone's largest (€2) is worth ¥279, and the
United Kingdom's largest (£2) is worth ¥402 (as of March 2005). The Swiss 5-franc coin is currently (as of April 2007) worth about ¥495. No doubt because of this high face value, the 500 yen has been a favourite target for counterfeiters. It was counterfeited to such an extent that in 2000 a new series of coins was issued with various security features. In spite of these changes, however, counterfeiting continues.
On various occasions, commemorative coins are minted using gold and silver with various face values, up to 100,000 yen.
[8] Even though they can be used, they are treated as collectibles.
Instead of displaying the
A.D. year of mintage like most coins, yen coins instead display
the year of the current emperor's reign. For example, a coin minted in 2006 would bear the date
Heisei 18 (the 18th year of
Emperor Akihito's reign).
| Currently Circulating Coins [1] |
|---|
| Image | Value | Technical parameters | Description | Date of first minting | |||||
|---|---|---|---|---|---|---|---|---|---|
| Diameter | Thickness | Mass | Composition | Edge | Obverse | Reverse |
|---|
| | ¥1 | 20 mm | 1.2 mm | 1 g | 100% aluminium | Smooth | Young tree, state title, value | Value, year of minting | 1955 |
| | ¥5 | 22 mm | 1.5 mm | 3.75 g | 60–70% copper 30–40% zinc | Smooth | Ear of Rice, gear, water, value | State title, year of minting | 1949 |
| ¥10 | 23.5 mm | 1.5 mm | 4.5 g | 95% copper 3–4% zinc 1–2% tin | Milled | Hōōdō Temple, Byōdō-in, state title, value | Evergreen tree, value, year of minting | 1951 |
| Smooth | 1959 |
| | ¥50 | 21 mm | 1.7 mm | 4 g | Cupronickel 75% copper 25% nickel | Milled | Chrysanthemum, state title, value | Value, year of minting | 1967 |
| | ¥100 | 22.6 mm | 1.7 mm | 4.8 g | Cherry blossoms, state title, value | 1967 |
| | ¥500 | 26.5 mm | 2 mm | 7.2 g | Cupronickel 75% copper 25% nickel | Smooth with lettering ("NIPPON ◆ 500 ◆ NIPPON ◆ 500 ◆") | Paulownia, state title, value | Value, bamboo, Mandarin orange, year of minting | 1982 |
| | ¥500 | 7 g | 72% copper 20% zinc 8% nickel | Reeded slantingly | Value, bamboo, Mandarin orange, year of minting, latent image [2] | 2000 |
|
Banknotes
Main articles: Banknotes of the Japanese yen
The issuance of the yen banknotes began in 1872, two years after the currency was introduced. Throughout its history, the denominations have ranged from 10 sen to 10,000 yen.
Before and during
World War II, various bodies issued banknotes in yen, such as the Ministry of Finance and the Imperial Japanese National Bank. The Allied forces also issued some notes shortly after the war. Since then, the
Bank of Japan has been the exclusive note issuing authority. The bank has issued five series after World War II. Series E, the current series, consists of ¥1000, ¥5000, and ¥10,000.
Determinants of value
The
relative value of the yen is determined in
foreign exchange markets by the
economic forces of
supply and demand. The
supply of the yen in the
market is governed by the desire of yen holders to exchange their yen for other currencies to purchase
goods,
services, or
assets. The
demand for the yen is governed by the desire of foreigners to buy goods and services in Japan and by their interest in
investing in Japan (buying yen-denominated real and financial assets).
The yen as an international reserve currency
Main articles: Reserve currency
Historical exchange rate
The table below shows the number of yen per
U.S. dollar. (monthly average)
| Year | Month |
|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1949–71 | 360 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1972 | 308 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1973 | 301.15 | 270.00 | 265.83 | 265.50 | 264.95 | 265.30 | 263.45 | 265.30 | 265.70 | 266.68 | 279.00 | 280.00 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1974 | 299.00 | 287.60 | 276.00 | 279.75 | 281.90 | 284.10 | 297.80 | 302.70 | 298.50 | 299.85 | 300.10 | 300.95 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1975 | 297.85 | 286.60 | 293.80 | 293.30 | 291.35 | 296.35 | 297.35 | 297.90 | 302.70 | 301.80 | 303.00 | 305.15 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1976 | 303.70 | 302.25 | 299.70 | 299.40 | 299.95 | 297.40 | 293.40 | 288.76 | 287.30 | 293.70 | 296.45 | 293.00 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1977 | 288.25 | 283.25 | 277.30 | 277.50 | 277.30 | 266.50 | 266.30 | 267.43 | 264.50 | 250.65 | 244.20 | 240.00 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1978 | 241.74 | 238.83 | 223.40 | 223.90 | 223.15 | 204.50 | 190.80 | 190.00 | 189.15 | 176.05 | 197.80 | 195.10 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1979 | 201.40 | 202.35 | 209.30 | 219.15 | 219.70 | 217.00 | 216.90 | 220.05 | 223.45 | 237.80 | 249.50 | 239.90 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1980 | 238.80 | 249.80 | 249.70 | 238.30 | 224.40 | 218.15 | 226.85 | 219.20 | 212.00 | 211.75 | 216.75 | 203.60 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | 205.20 | 208.85 | 211.40 | 215.00 | 223.50 | 225.75 | 239.75 | 228.75 | 231.55 | 233.35 | 214.15 | 220.25 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1982 | 228.45 | 235.20 | 248.30 | 236.30 | 243.70 | 255.55 | 256.65 | 259.60 | 269.40 | 277.40 | 253.45 | 235.30 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1983 | 238.40 | 235.55 | 239.30 | 237.70 | 238.60 | 239.80 | 241.50 | 246.75 | 236.10 | 233.65 | 234.20 | 232.00 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1984 | 234.74 | 233.28 | 224.75 | 226.30 | 231.63 | 237.45 | 245.45 | 241.70 | 245.40 | 245.30 | 246.50 | 251.58 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1985 | 254.78 | 259.00 | 250.70 | 251.40 | 251.78 | 248.95 | 236.65 | 237.10 | 216.00 | 211.80 | 202.05 | 200.60 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1986 | 192.65 | 180.45 | 179.65 | 168.10 | 172.05 | 163.95 | 154.15 | 156.05 | 153.63 | 161.45 | 162.20 | 160.10 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1987 | 152.30 | 153.15 | 145.65 | 139.65 | 144.15 | 146.75 | 149.25 | 142.35 | 146.35 | 138.55 | 132.45 | 122.00 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1988 | 127.18 | 128.12 | 124.50 | 124.82 | 124.80 | 132.20 | 132.53 | 134.97 | 134.30 | 125.00 | 121.85 | 125.90 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1989 | 129.13 | 127.15 | 132.55 | 132.49 | 142.70 | 143.95 | 138.40 | 144.28 | 139.35 | 142.15 | 142.90 | 143.40 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1990 | 144.40 | 148.52 | 157.65 | 159.08 | 151.75 | 152.85 | 147.50 | 144.50 | 137.95 | 129.35 | 132.75 | 135.40 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991 | 131.40 | 131.95 | 140.55 | 137.42 | 137.97 | 138.15 | 137.83 | 136.88 | 132.95 | 131.00 | 130.07 | 125.25 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1992 | 125.78 | 129.33 | 133.05 | 133.38 | 128.33 | 125.55 | 127.30 | 123.42 | 119.25 | 123.35 | 124.75 | 124.65 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | 124.30 | 117.85 | 115.35 | 111.10 | 107.45 | 106.51 | 105.60 | 104.18 | 105.10 | 108.23 | 108.82 | 111.89 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1994 | 109.55 | 104.30 | 102.80 | 102.38 | 104.38 | 98.95 | 99.93 | 99.57 | 98.59 | 97.37 | 98.98 | 99.83 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1995 | 98.58 | 96.93 | 88.38 | 83.77 | 83.19 | 84.77 | 88.17 | 97.46 | 98.18 | 101.90 | 101.66 | 102.91 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1996 | 106.92 | 104.58 | 106.49 | 104.29 | 108.37 | 109.88 | 107.13 | 108.40 | 111.45 | 113.27 | 113.44 | 115.98 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1997 | 122.13 | 120.88 | 123.97 | 126.92 | 116.43 | 114.30 | 117.74 | 119.39 | 121.44 | 120.29 | 127.66 | 129.92 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1998 | 127.34 | 126.72 | 133.39 | 131.95 | 138.72 | 139.95 | 143.79 | 141.52 | 135.72 | 116.09 | 123.83 | 115.20 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 115.98 | 120.32 | 119.99 | 119.59 | 121.37 | 120.87 | 115.27 | 110.19 | 105.66 | 104.89 | 102.42 | 102.08 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2000 | 106.90 | 110.27 | 105.29 | 106.44 | 107.30 | 105.40 | 109.52 | 106.43 | 107.75 | 108.81 | 111.07 | 114.90 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2001 | 116.38 | 116.44 | 125.27 | 124.06 | 119.06 | 124.27 | 124.79 | 118.92 | 119.29 | 121.84 | 123.98 | 131.47 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2002 | 132.94 | 133.89 | 132.71 | 127.97 | 123.96 | 119.22 | 119.82 | 117.97 | 121.79 | 122.48 | 122.44 | 119.37 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2003 | 119.21 | 117.75 | 119.02 | 119.46 | 118.63 | 119.82 | 120.11 | 117.13 | 110.48 | 108.99 | 109.34 | 106.97 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2004 | 105.88 | 109.08 | 103.95 | 110.44 | 109.56 | 108.69 | 111.67 | 109.86 | 110.92 | 105.87 | 103.17 | 103.78 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2005 | 103.58 | 104.58 | 106.97 | 105.87 | 108.17 | 110.37 | 112.18 | 111.42 | 113.28 | 115.67 | 119.46 | 117.48 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2006 | 117.18 | 116.35 | 117.47 | 114.32 | 111.85 | 114.66 | 114.47 | 117.23 | 117.91 | 118.01 | 117.23 | 115.57 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2007 | 118.72 | 121.29 | 115.86 | 117.83 ★ | 119.52 ★ | 122.67 | | | | | | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Source:[9] | |||||||||||
★ Monthly close from
Bloomberg
See also
★
Japan Mint
★
Japanese military yen
★
Economy of Japan
★
Capital flows in Japan
★
Monetary and fiscal policy of Japan
★
Balance of payments accounts of Japan (1960-90)
References
1. Titsingh, I. (1834). ''Annales des empereurs du Japon,'' p. 415.
2. Equivalent of 0.78 troy ounce of silver in yen xe.com
3. Equivalent of 0.04822612 troy ounce of gold in yen xe.com
4. )
5. What keeps bankers awake at night?, ''The Economist'', Feb 1st 2007
6. http://www.economist.com/finance/displaystory.cfm?story_id=8679006
7. Number of Coin Production (calendar year) Japan Mint
8. Commemorative Coins issued up to now Japan Mint
9. Foreign Exchange Rates Bank of Japan
Further reading
★
Titsingh, Isaac. (1834). [Siyun-sai Rin-siyo/
Hayashi Gahō (1652)]. ''
Nipon o daï itsi ran''; ou, ''Annales des empereurs du Japon.'' Paris:
Oriental Translation Fund of Great Britain and Ireland.
External links
★
Japanese currency FAQ in
Currency Museum, Bank of Japan
★
OSATSU.NET - Japanese yen banknote tracking site, which looks like
Where's George?
★
Chart: US-Dollar in Yen
★
Chart: 100 Yen in Euro
★
Study of the inflation in Japan and its relationship to interest rates - thereby affecting Yen
★
Money in Japan. A guide while traveling.