A currency defined by metal
Under a gold standard, a currency’s value was defined in relation to a specified quantity of gold, or linked to another currency with that commitment. Convertibility meant that the promise could be acted upon under the system’s rules. The classical international gold standard is generally associated with the period from the 1870s to the First World War in 1914. Arrangements and participation differed across countries. [1]
Why exchange rates were linked
Consider an invented example: one unit of currency A converts into two grams of gold, while one unit of currency B converts into one gram. Their implied parity is two B for one A. This arithmetic explains the link; the weights are hypothetical and are not historical currency specifications. Actual exchange transactions also involved practical costs, so a fixed gold relationship did not remove every market friction.
An anchor has a cost
A commitment to exchange currency for gold limits policy freedom. Pressure on reserves can force authorities to prioritise defending convertibility, even when easier monetary conditions would help domestic activity. The Bank of Canada’s account emphasises how adjustment could be uneven and difficult when prices and wages were slow to respond. A stable exchange-rate rule did not guarantee smooth employment, credit conditions or economic growth. [2]
What the system did not promise
Gold backing did not necessarily mean every banknote had an equal value of bullion sitting separately behind it. Reserve requirements and monetary arrangements varied. Nor did convertibility make financial crises impossible. Distinguish three questions: the legal gold definition, the ability to maintain conversion and the economic consequences of defending it. Calling gold an anchor describes the commitment; it does not settle whether that commitment was desirable in every circumstance. [1] [2]
Sources & further reading
- World Gold Council · The classical gold standard ↗
- Bank of Canada · The evolution of the international monetary system ↗
Sources checked 14 November 2026. The artwork is illustrative. Reference organisations do not endorse this website. Financial examples are educational, not investment recommendations.