WorldInvest hired Frontier Partners to handle its U.S. marketing. WorldInvest closed its U.S. marketing office. "Economies of scale dictated that decision, said Lorig Maranjian, director of U.K. marketing for the boutique manager, which runs $1.7 billion from U.S. institutional clients. "Running a U.S. office is expensive. Gloria E. Carlson, director-U.S. marketing, and Deirdre Brett, marketing associate, who led WorldInvests marketing in the United States, were terminated.