In a strange bit of synergy, Tim Harford writes a column on George Akerlof's famous paper on used cars:In 1966 an assistant economics professor, George Akerlof, tried to explain why this is so in a working paper called "The Market for 'Lemons.' " His basic insight was simple: If somebody who has plenty of experience driving a particular car is keen to sell it to you, why should you be so keen to buy it?Akerlof showed that insight could have...