Other people’s money seems to be a source of endless fascination, and the fact that Bill Gates has notified his intention to sell a small fraction of his holding in Microsoft Corp – worth about $67m if the price doesn’t move against him on the news (CI No 2,488) has elicited the predictable spate of gossip: one correspondent suggests that he is selling because Chicago is a dog and the share price will fall, but most analysts are sanguine, and one, Jeff Tarter, talking to Associated Press, described the sale as walking around money and not unusual for Gates, whose net worth has been estimated at around $7,000m.