A causal measure of freedom

The paper axiomatizes a freedom measure based on the idea that an agent is free if she can causally influence relevant aspects of her life. To model this, causal networks are employed. It is shown that the measure is a generalization of several opportunity set based measures. The measure solves two fundamental problems of the literature on freedom of choice: The integration of freedom and welfare into a single measure and the difficulty of interpreting opportunity sets in situations where agents interact.