How an Economist Thinks
5th August 2008
Over the weekend a crew came round my neighborhood offering to paint house numbers on the curb. Large bold curb numbers, they pointed out, make it easier for emergency service workers to easily find houses in the dark. Good arguments. The price was good too. Then I noticed my neighbors were having their numbers painted. So of course, I declined.
I avoid flu shots on the same rationale. If everyone around me has had a flu shot, then I have no one to catch it from.