Normative ethics is the study of ethical action. It is the branch of philosophical ethics that investigates the set of questions that arise when considering how one ought to act, morally speaking. Normative ethics is distinct from meta-ethics because it examines standards for the rightness and wrongness of actions, while meta-ethics studies the meaning of moral language and the metaphysics of moral facts. Normative ethics is also distinct from descriptive ethics, as the latter is an empirical investigation of people’s moral beliefs. To put it another way, descriptive ethics would be concerned with determining what proportion of people believe that killing is always wrong, while normative ethics is concerned with whether it is correct to hold such a belief. Hence, normative ethics is sometimes called prescriptive, rather than descriptive. However, on certain versions of the meta-ethical view called moral realism, moral facts are both descriptive and prescriptive at the same time.
Most traditional moral theories rest on principles that determine whether an action is right or wrong. Classical theories in this vein include utilitarianism, Kantianism, and some forms of contractarianism. These theories mainly offered the use of overarching moral principles to resolve difficult moral decisions.
There are disagreements about what precisely gives an action, rule, or disposition its ethical force. There are three competing views on how moral questions should be answered, along with hybrid positions that combine some elements of each. Virtue ethics focuses on the character of those who are acting, while both deontological ethics and consequentialism focus on the status of the action, rule, or disposition itself. The latter two conceptions of ethics themselves come in various forms.
It can be unclear what it means to say that a person "ought to do X because it is moral, whether they like it or not". Morality is sometimes presumed to have some kind of special binding force on behaviour, but some philosophers think that, used this way, the word "ought" seems to wrongly attribute magic powers to morality. For instance, G. E. M. Anscombe worries that "ought" has become "a word of mere mesmeric force". British ethicist Philippa Foot elaborates that morality does not seem to have any special binding force, and she clarifies that people only behave morally when motivated by other factors.