Are you assuming you're going to be on the businessy side of things because of your econ degree, or because you WANT to be? I'm getting a philosophy degree, but I'm not confining myself to the philosophy-y side of things.
Also, I've heard that many companies, especially smaller ones that might not be attracting the top talent, put that "3+ years of experience" on there to discourage people who don't have too much confidence in themselves and their resume, and thus probably aren't suitable for the job. So, take that with a grain of salt. If they think you're cool, and you've got the right portfolio, you've got a shot.