Jobs in the US Marine Corps for economics majors?

Marie, if you are selected for the Marine Corps OCS after successful competition you will Attend the six month TBS (The Basic School). You will receive your job at TBS and it is very competitive only pilots and JAG officers have guarantees. Good luck....................speak with your Marine Corps Officer Selection Officer (OSO) soon because it is a four to six month process..........................

degree is irrelevant unless you are looking at being JAG. and that requires the Law degeree plus having passed the Bar in at least one state

Riflleman

Jobs that involve sitting on balloons.

Probably thinktank and wargaming. If you have a degree you can get a commission and maybe be assigned to the pentagon.