Essential Concepts & Key Facts
High-yield conceptual summaries for competitive exams and rapid revision.
- Over 20 sovereign countries and territories officially name their national legal tender the 'Dollar'.
- The word 'dollar' originates from the German 'Thaler', derived from silver coins minted in Joachimsthal, Bohemia, in the 1500s.
- The United States Dollar (USD), created by the Coinage Act of 1792, is the world's foremost global reserve currency.
- The US Federal Reserve functions as the central banking authority issuing the USD and governing US monetary policy.
- The USD accounts for nearly 60% of official global foreign exchange reserves and dominates cross-border bank lending.
- The Canadian Dollar (CAD) is issued by the Bank of Canada and is colloquially known as the 'Loonie'.
- The Australian Dollar (AUD), managed by the Reserve Bank of Australia (RBA), was among the first to introduce polymer banknotes in 1988.
- The New Zealand Dollar (NZD), managed by the Reserve Bank of New Zealand, is popularly nicknamed the 'Kiwi' after its national bird.
- The Singapore Dollar (SGD) is administered by the Monetary Authority of Singapore (MAS) through an exchange rate band mechanism.
- Under the 1967 Currency Interchangeability Agreement, the Brunei Dollar (BND) and Singapore Dollar (SGD) are accepted at par in both countries.
- The Hong Kong Dollar (HKD) operates under a Currency Board Linked Exchange Rate System pegged to the US Dollar since 1983.
- The Hong Kong Monetary Authority authorizes three commercial banks (HSBC, Standard Chartered, Bank of China) to issue banknotes.
- The Jamaican Dollar (JMD) was introduced in 1969 to replace the Jamaican pound following the country's independence.
- The Namibian Dollar (NAD) is issued by the Bank of Namibia and is pegged at a 1:1 ratio with the South African Rand under the CMA.
- The Fijian Dollar (FJD) has served as Fiji's national currency since 1969, managed by the Reserve Bank of Fiji.
- The Guyanese Dollar (GYD) operates as the national legal tender of Guyana, a South American member of the Commonwealth.
- The Bahamian Dollar (BSD) has been pegged to the US Dollar at an exact 1:1 ratio since its introduction in 1966.
- The Barbados Dollar (BBD) is fixed to the US Dollar at a statutory exchange rate of 2 Barbadian dollars to 1 USD.
- The East Caribbean Dollar (XCD) is a shared regional currency used by eight island nations under the Eastern Caribbean Central Bank.
- Dollarization occurs when a country abandons its own currency to adopt the US Dollar (e.g., Ecuador, El Salvador, Panama).
- The origin of the '$' symbol is commonly traced to the abbreviation of the Spanish-American silver peso ('ps').
- Except for pegged currencies, each national dollar fluctuates independently based on domestic inflation, trade, and interest rates.
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