Power, scepticism and ethical theory

It is often thought that as human agents we have a power to determine our actions for ourselves. And a natural conception of this power is as freedom - a power over alternatives so that we can determine for ourselves which of a variety of possible actions we perform. But what is the real content of this conception of freedom, and need self- determination take this particular form? I examine the possible forms self-determination might take, and the various ways freedom as a power over alternatives might be constituted. I argue that though ordinary ethical thought, and especially moral blame, may be committed to our possession of some capacity for self-determination, the precise nature of this power is probably ethically underdetermined - though conceptions of the nature of the power that come from outside ethics may then have important implications for ethics.