This is the best (short) explanation of who the responsible parties were that truly created the subprime mortgage crisis, that I’ve seen. Professor Randall Bartlett Ph.D. definitely has a clue. I have found many politicians, educators, and economists don’t. It was a perfect storm of ignorant politicians and a convoluted mortgage backed security system. There is more to it, and some parties that can be named, but this is a good synopsis.