Babbage: July 29th 2014: Listen like a fly on the wall

THIS week our correspondents discuss fly-inspired hearing aids and Airbnb’s move into business travel 
Comment Expiry Date: 

Wed, 2014-08-13

Link to article: www.economist.com/blogs/babbage/2014/07/babbage-july-29th-2014?fsrc=rss

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