New mobile development platforms are a 21st-century growth pole. By successfully recombining existing information technologies with new innovations, they have spurred a positive feedback loop of consumer adoption of mobile devices and firm entry into a wide variety of applications, or...

Economy-wide increasing returns to scale embodied in a general purpose technology (GPT) and its applications are often a key source of long-run growth. Yet the successful exploitation of increasing returns calls for coordination on a particular technological direction, reducing flexibility and...

Contractual theories of vertical integration derive firm boundaries as an efficient response to market transaction costs. These theories predict a relationship between underlying features of transactions and observed integration decisions. There has been some progress in testing these...