There’s a wealth of information in this 15-minute interview with Professor Walter E. Williams. If I were still homeschooling, I’d have my kids watch this interview and then let the discussion go from there; it’s that good.
Note that he mentions Dr. Thomas Sowell, another economic expert who has written many, many books full of common sense. I used his Basic Economics with my younger daughter when she was a homeschooling teen. We both learned a lot from that book.
(Interesting sidenote: the interviewer, Ginni Thomas, is married to Supreme Court Justice Clarence Thomas.)