Conflicts of interests of individuals, public institutions or states influence dialogues, compromises, conflict resolution and peacemaking. What is the ethical way of resolving conflicts of interests? The present text is the result of the work of four ethics experts from four countries, as well as conferences on improved training exercises; it is a synthesis of the specialists’ opinions from different countries and joint discussions of the issue by five experts. The purpose of this article is to promote in terms of ethics the further development of the SUN movement (Scaling Up Nutrition Movement) and GSO-SUN (Global Social Observatory) tools.

The paper deals with the problem of defining responsible leadership in international relations and domestic policy. The analysis of theoretical approaches to understanding leadership in politics and specifics of decision-making made it possible to identify responsible leadership criteria, to determine their nature and the minimum quantity required. The table of responsible leadership, generated on the basis of the analysis, allowed to create a new behavioral model of leadership based on the synthesis of two approaches: typology of political leadership by Jean Blondel and the principle of “Nash equilibrium”. Their aggregate gives us the possibility to talk not only about the responsibility of a true political leader, but also about his indispensable accountability, which allows the leader to ensure sustainable development and to achieve the most positive result in foreign and domestic policy.