Pakistan, July 23 -- Credit ratings S&P Global raised Pakistan's long-term sovereign credit rating to "B" from "B-" on Wednesday, citing stronger institutional stability and effective implementation of reforms under an IMF program. "The stable outlook reflects our view of Pakistan's improved political and institutional settings. Entrenched economic reforms will bring about a sustained period of steady growth and fiscal consolidation," said S&P. "We anticipate sustained official financing will support Pakistan in meeting its external obligations and that the country will continue to roll over its commercial credit lines over the next 12 months." The said the government's efforts to widen the tax base have improved revenue collection and ac...