A field of psychology that investigates the psychological mechanisms, strategies, and techniques of negotiating between individuals or groups in order to reach mutually acceptable solutions. Studies the influence of emotions, motivation, communication styles, interpersonal differences and cognitive biases on the effectiveness of the negotiation process. Negotiation psychology develops methods for preparing for negotiations, managing conflicts, persuasion and reaching compromises, and also helps to predict the behavior of participants and reduce tension in the process of discussions.