Online peer-to-peer communities and online social networks have become increasingly popular. In particular, the recent boost of online peer-to-peer communities leads to exponential growth in sharing of user-contributed content which have brought profound changes to business and economic...

Static theories of firms often fail to explain the tendency toward standardization and de facto monopolization by software and digital product firms. This article examines arguments favored by new economics of information: no market power, increasing returns, and network effects. We evaluate...