I once was consigned to a table full of business school students at a land-use conference at UCLA. Trying to be a good sport, I offered the only idea that I'd ever had about business: car insurance charged according to miles driven. I posited that since risk and mileage were more or less correlated, it only made sense that people who drove more and incurred more risk should pay more.

My tablemates stared back at me as if I had just issued a rousing recitation of Das Kapital.



















