[W]hen people say, “Oh, I’m a deontologist. Kant is my lodestar in ethics,” I don’t know how they ever make decisions at the margin based on that. It seems to me quite incoherent that deontology just says there’s a bunch of things you can’t do or maybe some things you’re obliged to do. But when it’s about more or less — “Well, how much money should we spend on the police force?” Try to get a Kantian to have a coherent framework for answering that question, other than saying, “Crime is wrong,” or “You’re obliged to come to the help of victims of crime.” It can’t be done.
Tyler Cowen, ‘Rob Wiblin interviews Tyler on Stubborn Attachments‘, October 16, 2018