LONDON — World leaders will pledge to regulate major hedge funds for the first time and set up a new oversight board to monitor the global financial system, according to a draft of the G20 communique.

The draft, obtained by Reuters from delegation officials at the G20 summit, also said leaders would vow to cooperate over economic policies to restore global growth and “refrain from competitive devaluation of our currencies.”

Missing was toughened language on tax havens, sought by France and Germany, that would name their locations and reveal bank assets held there.

The draft communique would strengthen the authority of the International Monetary Fund, giving it more responsibility for overseeing the world economy and making sure that crises do not erupt in the future.