"Harnessing the tension between "equity" and "efficiency" and achieving the optimal equilibrium between these policy objectives, has long been one of the major questions bedevilling economics and, more generally, political philosophy in liberal democracies but also beyond."

Free!! Google and Facebook!!! We all know them, what to worry about? Everything! The giants of the internet are expanding into every corner of the economy, politics and our lives. They control the majority of digital advertising; Alphabet, Google's parent, and Facebook receive more than 60...