Ethical theories provide frameworks for judging right and wrong decisions in business. There are two main types: consequentialist theories which evaluate actions based on their consequences, and non-consequentialist theories which don't consider consequences alone. Utilitarianism is a consequentialist theory that tells us to maximize happiness for all affected by an action. Kant's categorical imperative is a non-consequentialist theory stating that people should always be treated as ends in themselves, never merely as a means. These theories provide guidance for formulating policies and resolving conflicts in an objective, results-oriented way.