The Masters in Business Administration (MBA) is probably the most popular program for economics graduates. Many complete MBA programs at top universities, but most graduates work before starting an MBA. Strong programs usually require 3-5 years of professional experience. MBA programs prepare students to take leadership roles in major corporations.
Economics majors also do quite well on the Graduate Management Aptitude Test (GMAT) that is typically required by MBA programs. In 2011-12, the average GMAT score for economics majors was a 586, well above the 548 overall average of all majors. While economics majors did not score as well as those majoring in physics or engineering, they scored significantly above students with undergraduate majors in business (with scores ranging from 578 for operation management majors to 502 for management majors and 489 for marketing majors).
For more information, consult the Graduate Management Admission Council Web site.