I am not familiar with the Econ programs. But I think of these schools as more similar than different. Weather aside.
But you also have as part of your student experience the ability to take part in the fun of school sports. Davidson has a great d 1 basketball program and it’s a good way to have fun outside of the library.
I was a recruited athlete at Colby and decided to go elsewhere after several visits. Recruit weekend with student athletes etc. it was beautiful and the kids seemed really really sharp. This was in the 90s. But it was just so remote and so far north it really did make a difference. The 6 hour car ride from Boston or what seemed like that far to Waterville was a deal breaker.
Great choices. Best of luck. You can’t go wrong with either