To understand where the Subprime Mortgage Crisis began, we need to start at the root of the problem and first look at global savings (or as Chicago Radio dubbed: the Giant Pool of Money). By looking at the changes in the growth of global savings and interest rates over the past decade, I explain how and why many investors started moving away from traditionally safe investment products (i.e. treasury bills) to the housing market.
Works Cited
Chicago Public Radio. (2008, May 9). The Giant Pool of Money. https://www.thisamericanlife.org/355/the-giant-pool-of-money
Sub-prime the Musical 
You are doing a great job, keep up the good work. I intend to use your site to explain these finical topics to my own children because your break down is so well put. Thank you again and I hope you keep up this good work.
Thank you for the kind words