去美国读商科学什么好？

depends on your background. Accounting and Finance are huge different.
As upstairs mentioned, econ is more theoretical, hard to find a job in industry. Many ppl in the US are econ PHD. But it is a little bit easy to apply and get AD/Offer. Almost every school has econ major(from under to PHd level).

Finance is a board definition. If you study financial engineering, you must have a good understanding of math, computer science and statistics. And if you are good at programming, it is very easy to find a job in the US. However, for Finance master, it is not so quantitative, few school, no big names(except princeton and MIT), hard to find a decent job in the US.

Accounting is easier. but because of bad economics, it is hard too. And the salary is not so high.

Anyway, choose the one that matches your background. It is very difficult to say which is fit for you.

首先，不建议读经济，经济不是商科，而且过于理论，经济的PHD极其难申，就业形势也一般。

金融的话，可以，但是东西也是过于泛泛，哥大前段