Financial rand during 1984–1985 were largely the result of economic sanctions in response to apartheid. At the same time, the government enacted the exchange controls. Investments in South Africa by foreigners could only be sold for financial rand. The financial rand system provided for two exchange rates for the rand — one for current account transactions and one for capital account transactions for non-residents. Investments made in South Africa by non-residents could only be sold for financial rand, and limitations were placed on the convertibility of financial rand into foreign currencies. Financial rand had the ISO 4217 currency code ZAL. Financial rand
Currency substitution the share of all foreign currency deposits held by domestic residents at home and abroad in their total monetary assets. Unofficial currency substitution or de facto currency substitution is the most common type of currency substitution. Unofficial currency substitution occurs when residents of a country choose to hold a significant share of their financial assets in foreign currency, even though the foreign currency is not legal tender there. They hold deposits in the foreign currency because of a bad track record of the local currency, or as a hedge against inflation of the domestic currency. Official currency substitution or full