Joel Greenblatt recently did a Talks at Google (video is embedded below). You might remember him from such books as The Little Book that Beats the Market and You Can Be a Stock Market Genius. He also ran a very concentrated portfolio that produced mind-boggling returns.
Greenblatt told the story about recently teaching a class of 9th graders. He started the class with an experiment. He brought in a big jar full of jelly beans, passed out index cards, and asked the kids to guess the number of jelly beans in the jar.
So the kids tried to count the individual jelly beans or the rows of jelly beans or found some other ways to come up with their best guess. Then they wrote their guess on their card. Continue Reading…

I’m in the middle of transcribing Charlie Munger’s unofficial Q&A session after the recent DJCO meeting. He was kind enough to stick around afterward for pictures and questions and someone was nice enough to