Moral psychology is a field of study in both philosophy and psychology. Some use the term "moral psychology" relatively narrowly to refer to the study of moral development. However, others tend to use the term more broadly to include any topics at the intersection of ethics and psychology and philosophy of mind. Some of the main topics of the field are moral judgment, moral reasoning, moral responsibility, moral development, moral character (especially as related to virtue ethics), altruism, psychological egoism, moral luck, and moral disagreement. Moral Psychology is a novel branch within the field of Psychology. The study of moral identity is one aspect of psychology that shows the most potential for growth due to the numerous sections within the field regarding its structure, mechanisms, and dynamics. A moral act is a type of behavior that refers to an act that has either a moral or immoral consequence. Moral Psychology can be applied across a broad range of studies, including philosophy and psychology. However it is implemented in different ways depending on culture. In many cultures, a moral act refers to an act that entails free will, purity, liberty, honesty, and meaning. An immoral act refers to an act that entails corruption and fraudulence and usually leads to negative consequences. Some of the main topics of the field are moral judgment, moral reasoning, moral responsibility, moral development, moral character, altruism, psychological egoism, moral luck, moral disagreement, moral psychology, moral action, moral forecasting, emotion, and affective forecasting.