What are the business models of different kind of market places? What is the right market size for a profitable market place? Wha'ts essential to make it work?
Marketplaces can make you believe in magic: by connecting supply and demand, all you have to do is sit there waiting for the money to flow. Still, 99% of them sink bringing with them huge amounts of money... The good news is most of them fail for the same reasons, and we will tell you which ones.