Good question. I would say, collective ownership. A country can be thought of as 'owned' by its people, with the rules of ownership agreed upon by the owners themselves (everyone owns an equal share -> 1 person 1 vote, ownership may not be transfered, but is given upon being born in the country or to an owner, and so on). This way, a country reduces to property. Should not the owners of property be free to manage it in their own favour?