How challenging will econ and applied math double major be?

Just be honest!

This is all very relative. If you have a strong background in math (mostly proof-writing), you will find it far more manageable than if you have no such experience. Econ classes are generally easier, but you will need to be comfortable with PDEs for 101A and a lot of statistics for 141. Overall, there aren’t too many classes so you could probably graduate in much less than 4 years.

What about double majoring in Math and Business Administration (Haas)?

@BarrelBlaster I’m not sure why you would want to do Haas if you have enough quantitative background to do the quantitative econ track. Same stands for what I said about Math. Haas classes are generally considered jokes.

@lightshining Can you elaborate on what the “quantitative econ track” is, and why it’s better than Haas?

“Quantitative econ track” means choosing Economics 101A, 101B, and 141 instead of 100A, 100B, and 140, taking additional math and statistics courses like Math 53, 54, 104, and 110 and Statistics 134, and taking math-based economics electives like Economics C103, 104, and 138. Doing that is recommended for students looking at PhD study in economics. Those looking at quantitative finance jobs may also find it more suitable than business, which is not particularly math-heavy.