<p>Economics might be more marketable if you were interested in going in to business or polling or something like that. But it sounds like you have minimal interest in working in the fields were economics would be an asset. If your main interest is teaching/academia, there aren’t a lot of jobs available for that period in terms of tenured positions, and considering the amount of work you have to put in to get to that level (Phd, lots of publishing, teaching, etc.) you might as well be putting in that work on something that you love vs. something you really dislike.</p>