There has been a renewed interest in the impact that digital technology is having on the boundaries of the firm. In particular there is a sense that networks operating on top of platforms are competing effectively with traditional firms. Examples include AirBnB as competing with hotels without owning any real estate, Uber with transportation companies without owning and cars, LendingClub with banks without having a balance sheet, Upwork (formerly ELance/ODesk) a systems contractor without emp...