This paper studies the set of equilibria that can be achieved by adding general communication systems to Bayesian games in which some information can be certified or, equivalently, in which players' types are partially verifiable. Certifiability of information is formalized by a set of available...

This work proposes to rely on the capital gains tax legislation to introduce transfers in merger control. Transfers are never used in merger regulation, however they can represent a relevant device to extract information on synergies. The implicit transfer collected thanks to the capital gains...