Islamabad: Talks between Pakistan and the IMF to restart a $6b loan programme have stalled over Prime Minister Imran Khan’s refusal to introduce unpopular measures, say senior government officials.Formal discussions to release a tranche of funding have been pushed back over concerns from Islamabad that instituting the reforms tied to the loan would provoke a backlash from the hard-hit middle class.An IMF team that was expected to visit Islamabad in October has not yet arrived “as the fund...