The aim of this paper is to demonstrate how flatness and the complexity of a modern economy hinder organisational conflict resolution, and how sometimes these are even the cause of conflict. The detailed research questions focus on the influence of cultural differences in decision-making to resolve labour conflicts, the influence of the flat world effect on the functioning of trade unions in international companies, and the role of conflicts of interest and value in companies operating on a global scale. The discussion is based on qualitative research with the application of case study methodology. The research was carried out using qualitative analysis based on grounded theory methodology. The author presents and discusses mediations held in international enterprises, where the global reach of the company caused significant problems in resolving conflicts between labour unions and management.