For your intended major, schools from your list such as UCL, LSE, UW–Madison and UBC all perform well on an international level. For their undergraduate focus and excellence in economics, Wellesley and Colgate belong near the top of your list as well. Smith would allow you to consider interesting economics courses at neighboring colleges such as Amherst and Mt. Holyoke (https://ideas.repec.org/top/top.uslacecon.html). If you get into and can afford any of these colleges, you have done well. With respect to options in Italy, you may want to consider U Bologna.