Introduction

Some libertarians in the tradition of Locke, Mill, and de Tocqueville would claim that there ought to exist in human life a certain minimum sphere of personal liberty that should not be interfered with by anybody other than the person in question. The question where exactly to draw the boundary between the sphere of personal liberty and that of collective authority is a matter of great dispute, and, indeed, what a libertarian might claim is not unequivocal in the first place. Nevertheless, a claim for the inviolability of a minimum extent of individual libertarian rights seems to be deeply rooted in our social and political ideals.

Granting the existence of a minimum sphere of personal liberty, can we design an otherwise democratic collective choice rule in such a way that each person is empowered to decide what should be socially chosen, no matter what others may claim, in choices over states that specifically concern him?