“First, it’s long been known that some firms in an industry can benefit from the imposition of more stringent safety regulations. Yes, these regulations raise everybody’s costs, but some firms’ costs rise more than others. The less-impacted firms have an incentive to press for the regulations in order to raise their rivals’ costs. This raises market price. The effect on price more than offsets the effect on cost for the less cost-impacted firms.

Which means: always look askance at people like Buffett who are calling for regulation of their industry.”