>Quiz - The software industry would be one possibility. A less obvious guess might be the extremely profitable porn industry…<
No (but good guess) on the software industry; I suspect that there are a lot of barely-profitable software houses that pull down the average. No (but good guess) on the porn industry because the survey didn’t include porn as one of the surveyed industries. (I don’t think there are any large public companies with porn as their main business segment.)
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”