The power and influence of dominant tech platforms — Google, Facebook, and Amazon, in particular — have become a central topic of debate. In this paper, I argue that these firms are best understood as the core infrastructure of our 21st century economy and public sphere. Whether it is...

Network shares and retail prices are not symmetric in the telecommunications market with multiple bottlenecks which give rise to new questions of access fee regulation. In this paper we consider a model with two types of asymmetry arising from different entry timing, i.e. a larger reputation for...

A Licensed Shared Access (LSA) "authorization/license" includes an agreement between the secondary sharing user (some type of operator) and the primary license holder (e.g. a government organization) around the conditions of use (where, when, how). Compared to secondary access LSA offers a more...