Depending on the school, economics majors may have some financial economics electives in the economics department, and (if the finance / business major is not full) may be able to take finance electives in the business department as well. In that case, the difference may be more in terms of non-finance courses – an economics major will typically take intermediate micro and macro economics and econometrics plus elective upper level economics courses, while a finance / business major will take various business courses as part of the major requirements.
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