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ChristianKl comments on Open thread, Jul. 18 - Jul. 24, 2016 - Less Wrong
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I think part of the promise of a BMW is that it's a safe car. However rightly or wrongly 5-star safety ratings is the common measurement of safety and not fatal accidents per mile.
But isn't the fatal accident per mile is better predictive measure?
It might be or it might not be because observational studies don't tend to be good at analysing causation.
In general marketing executives don't focus on using metrics that are good predictive measures. They also don't want to advertise less fatalities but more safety.
I don't think so; different types of car are bought by different people and driven differently. E.g. a person who buys a Lamborghini or Ferrari probably likes to drive fast and show off; a person who buys a Volvo probably drives a lot more carefully.