By Chris Dorrell Slack continued to grow in the labour market in March, a closely watched survey suggested, as experts called on the Bank of England to “loosen its grip on growth”. Starting salary inflation for permanent roles increased at its weakest rate in over three years, according to KPMG and the Recruitment and Employment Confederation’s (REC) report on jobs. For temporary roles, the increase in starting pay was the slowest in four months, putting it below the long-term trend. The easing in wage pressures reflected both a growing supply of candidates and falling demand from firms. The s…