De facto currency
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A de facto currency is a unit of money that is not legal tender in a country but is treated as such by most of the populace. The United States dollar and the European Union euro are the most common de facto currencies.
United States dollarEdit
Countries using the United States dollar as their de facto currency include Aruba and Cambodia, where most hotels, restaurants, and transportation are priced in dollars;Dominican Republic where it is acceptable in many places, including airports to pay temporary visa fees for non-US/Dominican visits; Iraq, where United States commercial, governmental and military involvement due to the Iraq War and the Iraqi Dinar's low value has made the US dollar highly preferred; East Timor, Lebanon, El Salvador, Ecuador and Panama.
South African rand and Botswana pulaEdit
Due to hyperinflation in Zimbabwe in 2006 to 2008, the government of Zimbabwe has allowed circulation of foreign currency since September 2008 and local currency became obsolete since 12 April 2009. Both South African rand and Botswana pula circulate in Zimbabwe.
Hong Kong DollarEdit
The Hong Kong Dollar is widely accepted in Macau, even though it has not gained official recognition from Autoridade Monetária de Macau (AMCM) as legal tender in Macau. The Macauese Pacata is pegged to the Hong Kong Dollar at 1.029(buy)/1.032(sell). However, many merchants who accept Hong Kong Dollars may offer to pay the difference between two currencies, such practice is often called '不补水' in Chinese. If merchandise priced in Patacas is paid for in Hong Kong Dollars, and if merchants practice '不补水', prices in Patacas may be rounded up to the equivalent in Hong Kong Dollars, and merchants would offer change in Hong Kong dollars or the amount of Hong Kong Dollars paid would be automatically converted into Patacas and merchants would then offer change in Patacas.