ABSTRACT Is free will a necessity or a luxury for an understanding of applied ethics? This paper offers an argument for why it is the former. First some reasons are offered why applied ethics, under the influence of Rawls's metaethics, has eschewed the topic of free will. It is shown why this is a mistake — namely, how applied ethics will falter without such a theory. The paper then argues for a conception of free will and indicates what ethical and (...) public policy implications may flow from this theory. (shrink)