zimbabwe’s central bank said it will begin selling foreign currency at marketdetermined rates and raised interest rates to stabilize the foreignexchange market the foreignexchange measures will take effect on wednesday the monetary policy committee said in a statement on tuesday “this measure is calculated to ensure that the interbank forex market is the primary source for foreign exchange needs in the economy and that the foreign exchange auction system shall continue to operate for meeting smaller requirements for foreign payments and for continuous price discovery” it said it raised the benchmark interest rate to 150 from 140