Nearly every year we hear about a looming problem that threatens to undermine Boston’s economic success: a “brain drain” from our college-rich region of graduates moving back home or on to other destinations.

Most troubling, the reports say, is the exodus of talent in the science, technology, engineering, and mathematics (STEM) fields. Losing a large number of these graduates threatens Boston’s innovation economy, and we should do all we can to make the Commonwealth more attractive to keep them here.