One regulator to rule them all

THE new masters of the financial universe are neither bank bosses nor hedge-fund titans. They are the regulators whose job it is to make finance safer. Daniel Tarullo, Andrew Bailey and Danièle Nouy, senior regulators in America, Britain and the euro zone respectively, may not have the salaries, egos or profiles of Wall Street superstars, but the decisions they and people like them make are shaping the industry. As John Mack, a former boss of Morgan Stanley, reportedly told his successor: “The government is your number-one client.” Even for those who deeply mistrust finance, that ought to give pause.