In this paper, we consider products that are composed of distinct components that can be shared with rival firms through licensing agreements. In contrast to the standard licensing settings in which firms make binary choices (whether to license or not), the innovator decides on the set of...

The "ladder of investment" is a regulatory approach proposed by Martin Cave (2006), which has been widely embraced by national regulatory authorities in the European telecommunications sector. The approach entails providing entrants, successively, with different levels of access - the "rungs" of...