Ethical decisions need to be consistent with the ethical theory. Normative ethics is the study of ethical action. An equitable obligation is a duty based on ethical or moral considerations. Character, a tragedy of moral or ethical character. The guidelines assist journalists in identifying and dealing with ethical dilemmas. Several involve difficult ethical and legal issues. The concept has a long history in philosophical and ethical thought. Such instances are mentioned as examples of beliefs about reality having effects on ethical considerations. Many manuals are procedural form filling exercises unconcerned about the real ethical dilemmas. Multinational corporations are subject to criticisms for lacking ethical standards. Gait in humans is difficult to study due to ethical concerns. However, definitions of what constitutes ethical behavior vary. Objectivism includes an extensive treatment of ethical concerns. This may be due to personal tastes or ethical reasons. Authenticity could be also seen as a precondition for ethical decisions.