The biennial DEON conferences are designed to promote interdisciplinary cooperation amongst scholars interested in linking the formal-logical study of normative concepts and normative systems with computer science, artificial intelligence, linguistics, philosophy, organization theory and law. In addition to these general themes, DEON 2016 encouraged a special focus on the topic "Reasons, Argumentation and Justification.".

The relationship between libertarianism and state is a contested one. Despite pressing full and strict ownership of one’s person and any justly acquired goods, many libertarians have suggested ways in which a state, albeit limited, can be regarded as just. Peter Vallentyne has proposed that all plausible versions of libertarianism are compatible with what he calls ‘private-law states’. His proposal is underpinned by a particular conception of rights, which brings Interest Theory of rights and Will Theory of rights together. If (...) convincing, Vallentyne’s theory of rights enables libertarians to accommodate a limited but nevertheless coercive state that can act without the full consent of the affected citizen. In this paper, it is argued that Vallentyne’s hybrid theory of rights is implausible from a libertarian perspective as well as fails to align itself with common and deeply held moral intuitions. Hence the conflict between mainstream libertarianism and the state is not solved by Vallentyne’s proposal. (shrink)

Rights dominate most modern understandings of what actions are proper and which institutions are just. Rights structure the forms of our governments, the contents of our laws, and the shape of morality as we perceive it. To accept a set of rights is to approve a distribution of freedom and authority, and so to endorse a certain view of what may, must, and must not be done.