what's your relationship with aei or with arthur brooks? >> well, i don't have any formal relationship with aei. arthur has been a friend and a mentor of mine for many years. one of the nice things about this book is concerned with issues poverty in network and how we help poor people, and what i wanted to do was write a book that would not just connect to academic audiences, but to a broader array of individuals and organizations that work in this area. many of those are nonprofit, many of those are faith-based organizations, and arthur is an expert on the nonprofit sector and understands how critical that sector is to the work we do. and, you know, he provided invaluable insight and structure as i moved forward with the book. >> you're a professor here at the university of chicago, what department do you teach? >> just celebrated its 100th year a year ago, it's a school of social work. we train thousands of students to be practitioners and counselors, go on to serve millions of americans over the course of all their careers. i teach cours