De facto currency April 2009. Both South African rand and Botswana pula circulate in Zimbabwe. The small French island of St. Pierre and Miquelon has the Canadian dollar as its de facto currency. Hong Kong Dollar is widely accepted in Macau, even though it hasn't gained any official recognition from Autoridade Monetária de Macau (AMCM) as legal tender in Macau. Currently, Macauese Pacata is pegged to Hong Kong Dollar at 1.029(buy)/1.032(sell). However, many merchants who accept Hong Kong Dollars may now offer to pay the difference between 2 currencies, such practice is often called '不补水' in Chinese. If merchandise priced in Patacas is
Currency governments intervene in the market to buy or sell their currency to balance supply and demand at a static exchange rate. In cases where a country has control of its own currency, that control is exercised either by a central bank or by a Ministry of Finance. The institution that has control of monetary policy is referred to as the monetary authority. Monetary authorities have varying degrees of autonomy from the governments that create them. A monetary authority is created and supported by its sponsoring government, so independence can be reduced by the legislative or executive authority that creates it.