The "usual perverse effect" of policies (aka "risk compensation") almost never happens, people just say it's going to happen and then it doesn't. This is a dis

The "usual perverse effect" of policies (aka "risk compensation") almost never happens, people just say it's going to happen and then it doesn't. This is a disease of the soul caused by reading Freakanomics which makes you think everything that's counterintuitive must actually be true.