Bloomberg Federal Reserve Chairman Jerome Powell and other top central bankers defended their use of unconventional policies during and after the financial crisis, but said more work was needed before they could declare the experiments successful. “The test is not over,” Powell said, less than three weeks before the Fed is expected to raise its policy interest rate for a …

Bloomberg National Australia Bank Ltd. said it will ensure no customers suffer financial losses after a nationwide system outage left Internet banking, ATMs and EFTPOS terminals out of service. The event was “incredibly rare” and no personal data was compromised, Cindy Batchelor, NAB Business executive general manager, told reporters in Melbourne, according to a transcript. She said all customers were …

Bloomberg Interest rate decisions across Africa in the next two weeks are likely to confirm the continent’s biggest economies have mostly ceased a wave of easing that’s been going since last year. Factors from sticky inflation to rising crude prices may persuade central bankers to freeze borrowing costs. Institutions in Nigeria, South Africa, Angola, Kenya and Mauritius will probably keep …