At-will employment is a term used in U.S. labor law for contractual relationships in which an employee can be dismissed by an employer for any reason (that is, without having to establish "just cause" for termination), and without warning. When an employee is acknowledged as being hired "at will", courts deny the employee any claim for loss resulting from the dismissal. The rule is justified by its proponents on the basis that an employee may be similarly entitled to leave his or her job without reason or warning. In contrast, the practice is seen as unjust by those who view the employment relationship as characterized by inequality of bargaining power.