After hearing news reports about the stock market drop, I naively thought “I wonder what Alan Greenspan’s been up to lately?” Well, turns out some people believe the comments he made to a Hong Kong business conference triggered the plunge. Greenspan said “When you get this far away from a recession, invariably forces build up for the next recession, and indeed we are beginning to see that sign.” And then the Chinese stock market went south. Others think it’s just a coincidence. Charles Jones from Columbia Business School: “It just so happens that [Greenspan] made one comment that ends up being right in front of a big stock market move. I think that’s more coincidence than anything.” I got what I wanted to know: Greenspan has not retired.