<p>Well if you take the maximum units and do all summers, then yeah I think you can. But here’s what I would do:
First read this guide: [Double</a> Majors](<a href=“http://collegecounseling.ucla.edu/double-major.html]Double”>http://collegecounseling.ucla.edu/double-major.html)
Start planning what you want to take quarter by quarter. You have a list of all the classes needed for both majors, so open an excel sheet (or worddoc), and start planning. You can look at last year’s schedule of classes on the registrar’s page to see what classes are offered during each quarter. Note that for Engineering, you’re capped at 21 units per quarter. For Economics, you’re capped at 19 units per quarter. Also note that the maximum units you can have TOTAL when you graduate must be 216 units or less (you can deduct your AP classes from your units count).
After all that, if you still like to go ahead, make an appointment with your counselor for your primary major. Convince him/her and you’re all set (I would also show him/her the schedule you planned out for your 5 years so they know it’s doable).</p>