The Economist Group, the London-based publisher of the Economist magazine, announced today that Helen Alexander will step down from her position as CEO at the company’s annual general meeting on July 15.Alexander will be replaced by publisher and managing director Andrew Rashbass. Previously, Rashbass served as Economist Group CIO and managing director of Economist.com.Following her departure as CEO, Alexander will become an advisor to private equity group Bain Capital, according to the Economist Group. She also will continue as a non-executive director of the Rolls-Royce Group and energy company Centrica. Alexander joined the magazine in 1985 as marketing manager. From there, she moved on to international circulation and then served as managing director of the Economist Intelligence Unit until 1997 when she became CEO.