Bryn Mawr Econ?

<p>I am very interested in attending Bryn Mawr and am interesting in majoring in economics. How is their econ department? Can i also take classes at nearby haverford, swathmore, or UPenn? (Preferably UPenn or Swathmore because i hear their economics department is quite good). What is your opinion?
Also, I read on a forum somewhere that Bryn Mawr students can't take econ classes at UPenn is this true?</p>