The aim of this article was to explain development of paradiplomacy and describe the most important factors influencing its shape and form. Paradiplomacy is seen as a concept oft en used to describe international action of regions or entities of federal systems. Paradiplomacy in broad sense refers to international action by non-central governments. Intuitive predictions suggest further development of paradiplomacy as a sign of regions empowerment. Contrary to that, last research show that devolution of power inside the state does not correlate with increased use of paradiplomacy by regions.