Adam Ozimek on negative political ads, like this one:
I know campaign ads shouldn’t affect us. We should vote based on policies and expected welfare impacts of those policies. But at some level these political ads become pollution, a pure negative externality. And I can’t look past it when a party or politician is willing to spew pollution to get elected. If you’ve got to denigrate a whole nation of people and one of the greatest economic miracles of the last 50 years, and stir up a hornets nest of ugly xenophobia in order convince people you’re the man for the job, then you’re demonstrably not the man for the job.