Why OPEC negotiations are so important for Saudi Arabia and the oil price - The Economist explains

HEDGE-FUND managers, commodities traders, ex-spooks and hacks all converge on Vienna on November 30th for the annual jamboree of OPEC, the oil producer’s cartel. Such attention may seem a little misplaced. During a year of schisms and mistrust, OPEC has repeatedly wrong-footed the markets and its credibility is in tatters.