This article identifi es the degree of comparability of the institution and bodies of the European Union on the one hand, and the Customs Union and the Common Economic Space of Belarus, Kazakhstan and Russia on the other. Institutional correspondence within the European and Eurasian integration is identifi ed which is further analysed on the functional basis. The analysis shows that despite certain institutional similarity, functional effectiveness varies considerably. The capacity to act of the bodies within Eurasian integration in comparison with the European Union is limited and depends considerably on the will of the leaders of the member states.
The article addresses the inception of the implied powers concept, which appeared at the end of the 18th — beginning of the 19th century in the USA. The central idea of implied powers is that state competences (or competences of international entities) are not limited to those explicitly stipulated in the founding documents. The author analyzes the views and arguments of the main historical proponents and opponents of the concept, traces its consolidation through state actions and jurisprudence. The author concludes that the concept of implied powers is necessary for effective achievement of the aims a state seeks to achieve through various historical periods.