ENThe research relevance has both theoretical and practical aspects. The theoretical relevance is associated with the search of efficiency factors in international business negotiation strategies in the research results and establishment of a model for effective systemic and complex theoretical business negotiations strategy preparation, based on the assessment of bargaining power. Practical relevance is related to the recent changes in the business markets, resulting by business organization challenges, recent developments purposefulness, which reveals with increasing electronic technology impacts to the business processes, negotiations, their effectiveness and ultimately, to increase the competitiveness of international business. Therefore, the theoretical and practical relevance of thesis can be described by the need to create a model for business negotiation strategy preparation, which would help to assess negotiating powers of participants in international business negotiations and their competitors', effectively develop and utilize negotiating powers which would ensure the development and implementation of effective business negotiation strategies in the development of international business and to increase its competitiveness. [From the publication]