The Mind Over Money Folly
Last night PBS’s Nova had a broadcast titled “Mind over Money” about the ways psychology affects economic decision-making. It was a standard World take on the latest in behavioral economics, namely that there is really no such thing as a rational market. The typical proponents of this view were favorably interviewed, Robert Shiller and Richard Thaler among them, stridently advancing the idea that emotions play such an important role in decision-making that few people are truly rational about the decisions they make. This is all played out in the market, and with the financial markets recently demonstrating how hosed people got, it must be true. Nah. Sorry. Everything anyone does is always and perfectly rational, every time. The reason is simple, and has a bit to do with a portion of the show that featured a scientist doing experiments to graphically see how much of a certain part of the brain is activiated when a subject is offered money. It turns out it is stimul...