Bimetallism, also known as the bimetallic standard, is a monetary standard in which the value of the monetary unit is defined as equivalent to certain quantities of two metals, creating a fixed rate of exchange between them.. In all known historical cases, the metals are gold and silver.
For scholarly purposes, "proper" bimetallism is sometimes distinguished as permitting that both gold and silver money are legal tender in unlimited amounts and that gold and silver may be taken to be coined by the government mints in unlimited quantities.. This distinguishes it from "limping standard" bimetallism, where both gold and silver are legal tender but only one is freely coined (e.g. the monies of France, Germany, and the United States after 1873), and from "trade" bimetallism, where both metals are freely coined but only one is legal tender and the other is used as "trade money" (e.g. most monies in western Europe from the 13th to 18th centuries). Economists also distinguish legal bimetallism, where the law guarantees these conditions, and de facto bimetallism, where gold and silver coins circulate at a fixed rate.
During the 19th century there was a great deal of scholarly debate and political controversy regarding the use of bimetallism in place of a gold standard or silver standard (monometallism). Bimetallism was intended to increase the supply of money, stabilize prices, and facilitate setting exchange rates.. Some scholars argued that bimetallism was inherently unstable owing to Gresham's law, and that its replacement by a monometallic standard was inevitable. Other scholars claimed that in practice bimetallism had a stabilizing effect on economies. The controversy became largely moot after technological progress and the South African and Klondike Gold Rushes increased the supply of gold in circulation at the end of the century, ending most of the political pressure for greater use of silver. It became completely academic after the 1971 Nixon shock; since then, all of the world's currencies have operated as more or less freely floating fiat money, unconnected to the value of silver or gold. Nonetheless, academics continue to debate, inconclusively, the relative use of the metallic standards.
Historical creation
From the 7th century BCE, Asia Minor, especially in the areas of Lydia and Ionia, is known to have created a coinage based on electrum, a naturally occurring material that is a variable mix of gold and silver (with about 54% gold and 44% silver). Before Croesus, his father Alyattes had already started to mint various types of non-standardized electrum coins. They were in use in Lydia and surrounding areas for about 80 years. The unpredictability of its composition implied that it had a variable value which was very hard to determine, which greatly hampered its development.
Croeseids
Croesus (reigned – BCE), king of Lydia, became associated with great wealth. Croesus is credited with issuing the Croeseid, the first true gold coins with a standardised purity for general circulation,
Herodotus mentioned the innovation made by the Lydians:
Achaemenid coinage
Many ancient bimetallic systems would follow, starting with Achaemenid coinage. From around 515 BCE under Darius I, the minting of Croesids in Sardis was replaced by the minting of Darics and Sigloi. The earliest gold coin of the Achaemenid Empire, the Daric, followed the weight standard of the Croeseid, and is therefore considered to be later and derived from the Croeseid. The weight of the Daric would then be modified through a metrological reform, probably under Darius I.
Sardis remained the central mint for the Persian Darics and Sigloi of Achaemenid coinage, and there is no evidence of other mints for the new Achaemenid coins during the whole time of the Achaemenid Empire. Although the gold Daric became an international currency which was found throughout the Ancient world, the circulation of the Sigloi remained very much limited to Asia Minor: important hoards of Sigloi are only found in these areas, and finds of Sigloi beyond are always very limited and marginal compared to Greek coins, even in Achaemenid territories.
Argentina
In 1881, a currency reform in Argentina introduced a bimetallic standard, which went into effect in July 1883. Units of gold and silver pesos would be exchanged with paper peso notes at given par values, and fixed exchange rates against key international currencies would thus be established. Unlike many metallic standards, the system was very decentralized: no national monetary authority existed, and all control over convertibility rested with the five banks of issue. This convertibility lasted only 17 months: from December 1884 the banks of issue refused to exchange gold at par for notes. The suspension of convertibility was soon accommodated by the Argentine government, since, having no institutional power over the monetary system, there was little they could do to prevent it.
France
A French law of 1803 granted anyone who brought gold or silver to its mint the right to have it coined at a nominal charge in addition to the official rates of 200 francs per kilogram of 90% silver, or 3100 francs per kilogram of 90% fine gold.Dickson Leavens, Silver Money, Chapter IV Bimetallism in France and the Latin Monetary Union, page 25 This effectively established a bimetallic standard at the rate which had been used for French coinage since 1785, i.e. a relative valuation of gold to silver of 15.5 to 1. In 1803 this ratio was close to the market rate, but for most of the next half century the market rate was above 15.5 to 1. As a consequence, silver powered the French economy and gold was exported. But when the California Gold Rush increased the supply of gold, its value was reduced relative to silver. The market rate fell below 15.5 to 1, and remained below until 1866. Frenchmen responded by exporting silver to India and importing nearly two-fifths of the world's production of gold in the period from 1848 to 1870.Dickson Leavens, op. cit. page 26 Napoleon III introduced five-franc gold coins which provided a substitute for the silver five-franc coins which were hoarded,John Porteous, Coins in History, page 238 but still maintained the formal bimetallism implicit in the 1803 law.
Latin Monetary Union
The national coinages introduced in Belgium (1832), Switzerland (1850), and Italy (1861) were based on France's bimetallic currency. These countries joined France in a treaty signed on 23 December 1865 which established the Latin Monetary Union (LMU). Greece joined the LMU in 1868 and about twenty other countries adhered to its standards.Robert Friedberg, Gold Coins of the World, fourth edition, page 11 The LMU effectively adopted bimetallism by allowing unlimited free coinage of gold and silver at the 15.5 to 1 rate used in France, but also began to back away from bimetallism by allowing limited issues of low denomination silver coins struck to a lower standard for government accounts.John Porteous, op. cit. page 241 A surplus of silver led the LMU to limit free coinage of silver in 1874 and to end it in 1878, effectively abandoning bimetallism for the gold standard.
Germany
The law of 4 December 1871 named one-tenth of a new imperial gold coin a mark, divided it into 100 pfennigs and authorized gold coins of 10 and 20 marks. The Coinage Act of 9 July 1873 made the mark the unit of account of the Reich gold currency, which was to replace the state currencies. An imperial ordinance of 22 September 1875 set 1 January 1876 as the date on which the Reich currency came into force throughout Germany.
The government withdrew old silver coins, melted them and sold the bullion. Because the silver price had fallen and losses were mounting, the government suspended the sales on 19 May 1879.
Although the Vereinsthaler was a silver-standard currency, German one-thaler pieces remained unlimited legal tender for 3 gold marks until 30 September 1907. They ceased to be legal tender on 1 October 1907, but Reich and state treasuries continued to accept or exchange them at three marks until 30 September 1908.
Germany's monetary system after 1873 was a "limping" standard and not an immediate end to silver in circulation. Gold defined the monetary unit and silver was no longer freely coined, yet the Vereinsthaler stayed unlimited legal tender at three marks, and the government did not suspend further sales of demonetized silver until 1879. Gold and a large stock of legal-tender silver coexisted as a result, keeping bimetallism a live practical and political question in Germany.
United Kingdom
Medieval and early modern England used both gold and silver, at fixed rates, to provide the necessary range of coin denominations; but silver coinage began to be restricted in the 18th century, first informally, and then by an Act of Parliament in 1774.A. Redish, Bimetallism (2006) p. 67 and p. 205 After the suspension of metal convertibility from 1797 to 1819, Peel's Bill set the country on the gold standard for the remainder of the century; however, advocates of a return to bimetallism did not cease to appear. After the crash of 1825, William Huskisson argued strongly within the Government for bimetallism, as a way to increase credit (as well as to ease trade with South America).B. Hilton, A Mad, Bad & Dangerous People? (Oxford, 2008) p. 303 Similarly, after the banking crisis of 1847, Alexander Baring headed an external bimetallist movement hoping to prevent the undue restriction of the currency.É. Halévy, Victorian Years (London: Ernest Benn, 1961) p. 201 It was, however, only in the last quarter of the century that the movement for bimetallism gathered real strength, drawing on Manchester cotton merchants and City financiers with Far East interests to offer a serious (if ultimately unsuccessful) challenge to the gold standard.P. J. Cain, British Imperialism (2016) pp. 155–6 and p. 695
United States
In 1792, Secretary of the Treasury Alexander Hamilton proposed fixing the silver-to-gold exchange rate at 15:1, as well as establishing the mint for the public services of free coinage and currency regulation "in order not to abridge the quantity of circulating medium".2 Annals of Cong. 2115 (1789–1791), cited in Arthur Nussbaum, The Law of the Dollar , Columbia Law Review, Vol. 37, No. 7 (Nov., 1937), pp. 1057–1091 With its acceptance, Sec.11 of the Coinage Act of 1792 established: "That the proportional value of gold to silver in all coins which shall by law be current as money within the United States, shall be as fifteen to one, according to quantity in weight, of pure gold or pure silver;" the proportion had slipped by 1834 to sixteen to one. Silver took a further hit with the Coinage Act of 1853, when nearly all silver coin denominations were debased, effectively turning silver coinage into a fiduciary currency based on its face value rather than its weighted value. Bimetallism was effectively abandoned by the Coinage Act of 1873, but not formally outlawed as legal currency until the early 20th century. The merits of the system were the subject of debate in the late 19th century. If the market forces of supply and demand for either metal caused its bullion value to exceed its nominal currency value, it tends to disappear from circulation by hoarding or melting down.
Political debate