Meanwhile, Wall Street’s Pied Pipers of Performance will have encouraged the futile hopes of the family. The hapless Gotrocks will be assured that they all can achieve above-average investment performance – but only by paying ever-higher fees. Call this promise the adult version of Lake Woebegon.

In 2006, promises and fees hit new highs. A flood of money went from institutional investors to the 2-and-20 crowd. For those innocent of this arrangement, let me explain: It’s a lopsided system whereby 2% of your principal is paid each year to the manager even if he accomplishes nothing – or, for that matter, loses you a bundle – and, additionally, 20% of your profit is paid to him if he succeeds, even if his success is due simply to a rising tide. For example, a manager who achieves a gross return of 10% in a year will keep 3.6 percentage points – two points off the top plus 20% of the residual 8 points – leaving only 6.4 percentage points for his investors. On a $3 billion fund, this 6.4% net  “performance” will deliver the manager a cool $108 million. He will receive this bonanza even though an index fund might have returned 15% to investors in the same period and charged them only a token fee.