This thesis elaborates the character of Bulgarian Republic development over last years in the view of current situation, which is remarkably influenced by the global financial and economic crisis. The core of this thesis is to map the difficult path for Bulgaria's membership in the European Union, its entry into these structures and the subsequent development during the first 3 years of membership. Finally, I review the present position of Bulgaria in the EU and evaluate the overall benefits for Bulgaria joining the European Union and whether the country was able to complete the necessary reforms and deliver on promises, which it made before the accession to the Union.

This diploma thesis deals with Croatia, the newest member of the European Union. Within the theoretical foundations it focuses on the European integration, describes the development of the European Union and introduces the entry conditions for the candidate countries, it also characterizes the basic macroeconomic concepts, which are being used further in the work. The second part of this work presents the long journey of Croatia towards European membership, with a focus on problem areas of the accession negotiations. The main part of the work is an analysis of the economic and political situation, firstly in the period before and then after the country's accession to the EU. After that the changes which this event represents for Croatia and the European Union are evaluated. Finally, an evaluation of the country's preparedness for potential entry into the euro area is submitted along with the arguments for and against the adoption of the single currency.

Depuis le début de la construction européenne, définir une politique énergétique européenne était un défi important. Malgré les Etats membres qui voulaient préserver l’autonomie de leur secteur énergétique, une vague de restructurations s’est mise en place dans le secteur européen de l’électricité et du gaz par la libéralisation du secteur. Dans ce cadre, le troisième paquet énergie avec la disposition de la séparation de la propriété qui envisageait de démanteler les grandes entreprises énergétiques, a suscité une grande polémique. En relation avec ce débat intensif, la genèse et l’institutionnalisation de la politique énergétique au niveau européen à partir de 1950 jusqu’à 2010 ont été étudiées. Le rôle des idées néolibérales, les pratiques quotidiennes des acteurs (les groupes d’intérêt, les fonctionnaires des institutions européennes, les parlementaires européens..), leurs rapports de force, les luttes de pouvoir dans l’établissement de cette politique ont été analysés. / From the beginning of the European integration, defining a European energy policy was an important challenge. Despite the Member States who intended to preserve the autonomy of their energy sector, a wave of restructuring has taken place in the European electricity and gas sector through the liberalization. In this context, the third energy package with the unbundling issue which envisaged dismantling the big energy companies, caused great deal of controversy and polemics. In connection with this intensive debate, the genesis and institutionalization of the European energy policy from 1950 to 2010 have been studied. The role of neoliberal ideas, stakeholders’ daily practices (interest groups, officials of the European institutions, MEPs...), their power relations, political struggles in the establishment of this policy were analyzed.