Often in a market, buyers don't know the true value of a product, and sellers may not know how much a customer can really pay. So how does one trade in such a scenario? Dr Arunava Sen, economist and winner of the Infosys Prize, may have some answers. He has spent years analysing how buyers and sellers behave in auctions and other businesses where key information is often kept hidden.... 
10:19 AM, Dec 31, 2012
