<story><title>What Car Thieves Think of the Club (2010)</title><url>http://freakonomics.com/2010/06/08/what-car-thieves-think-of-the-club/</url></story><parent_chain></parent_chain><comment><author>mrob</author><text>If improving your own security produces a negative externality then education also produces a negative externality. You&amp;#x27;re &amp;quot;harming&amp;quot; other people by becoming more employable than them. Personal hygiene produces a negative externality because you might become more attractive than somebody. Physical fitness produces a negative externality because you might get chased by a bear and not be the slowest. Doing anything that improves your chances in competition counts, and there are very few areas of life with no competition.&lt;p&gt;IMO such a loose definition is meaningless, and the word should be reserved for cases where you are actually doing harm. In the case of improved car security it&amp;#x27;s the car thieves who are doing harm.</text></comment>
<story><title>What Car Thieves Think of the Club (2010)</title><url>http://freakonomics.com/2010/06/08/what-car-thieves-think-of-the-club/</url></story><parent_chain></parent_chain><comment><author>austincheney</author><text>I have the world&amp;#x27;s most effective anti-theft device, there is research on this, in my car and this device saved me thousands on the retail price of the vehicle.&lt;p&gt;The mystery device is a manual transmission.</text></comment>