The world’s third-largest economy has emerged from last year’s slump on an export recovery, though a glacial vaccine rollout and a resurgence in infections are threatening household’s spending appetite. Retail sales jumped 5.2% in March from a year earlier, government data showed on Wednesday, a larger gain than the median market forecast for a 4.7% rise. In a potentially bullish development, surprisingly soft inflation data argued for super loose policy for years to come from the Reserve Bank of Australia (RBA).