Simple, clever, poignant. I wish I’d thought of it.
File under: duh, but that doesn’t mean someone shouldn’t reinvestigate this every 12 months.
This is the kind of thing that basic economic theory combined with Force = Mass X Acceleration will get you all the way to the conclusion, but that doesn’t have a chance at affecting policy until someone credibly estimates the costs. These estimates are credible and they should effect policy. I’ll give you my takeway though: this matters more as we transition to electric vehicles. As the cost incentives of gasoline become a weaker constraint on vehicle size, we will need to introduce new ways to internalize the external costs. Obvious policy solution: tax vehicles by the pound.
I’m working on monopsony in the paper I’m presenting at Geoerge Mason University next week. This is the final published version of the paper that presents the bleeding edge of the research in question. You should come to my talk if you’re in town.