I did my undergrad in Economics and in retrospect, I probably wouldn't do it again. I think it's becoming one of those degrees that necessitates at least a Master's degree in order to do work relevant to your education. You won't be "an economist" with a Bachelor's degree, so you'll find yourself looking for jobs for which others are better suited (e.g., finance jobs or whatever).
If you decide to do it anyway, I strongly suggest that by the time you graduate, you have some serious data analysis, statistical, and programming skills, and the ability to apply all these skills to doing strong research. That's your strongest selling point as an economics student. This likely means teaching yourself things that your classes will probably omit.