Managing the affairs of a trade association refers to any directed towards the purpose of the association and it does not relate to is foundations. There is narrow and broad sense of approaching the bisiness managment. Representation is the management of a company's business by taking legal actions against third parties and taking legal actionsbefore the court and administrative and other bodies. The management of the company must conduct bisiness of a joint stock company on its own responsibility and it must take care of protecting the interests of the association. In a limited liability company the mamagment is entrusted with the managment with one or more directors. In public trade associations the affairs are conducted the company by an individually member, by more specific members, or by allmembers of the association. The social contract determines the authorization and the waythe company's business is conducted.The responsibility of the managment for the damage caused to the company in representing and ruuning the business exists if the following requirements are met: the existence of a subject of compulsory-legal relationship, harmful actions, damage, cause and effect or unlawful gains.