So who does own Amazon or Apple? The answer is that no one does, any more than anyone âownsâ the Mississippi River, the Theory of Relativity, the Royal Economic Society or the air we breathe. A thing or â in Lord Millettâs erudite terminology â a res can exist without being owned by anyone. There are many different kinds of claims, contracts and obligations in modern economies, and only occasionally are these well described by the term âownershipâ. The differences between the modern corporation and my umbrella are so wide-ranging that it is hardly likely that my relationship with them could usefully be described in the same way.