The entry of immigrants into their incoming country as well as their subsequent spread over the country's territory occurs through processes that have a strong spatial bias. The specific migration groups (here defined as the set of immigrants with the same country of origin) tend to reveal different levels and patterns of their spatial concentrations. The understanding of these similarities and dissimilarities in spatial behaviour is important task from both academic and policy perspective. This thesis has a quantitative character and it is based on the study of "spatial relatedness" of migration groups, which is defined as a rate, how much do given migration groups concentrate into the same regions. The thesis is based on a simple assumption that the spatial relatedness mirrors mutual proximity or similarity between these groups in other respects (e.g. cultural or economical). Plenty of datasets describing spatial distribution of migrants within 32 territorial systems on various scales (from global to local) are analysed. These systems will be analysed separately at first and then a synthesis of these partial results will be done with the aim to discover prevailing pattern of the spatial relatedness of migration groups. The assessments consists of several steps, which include particularly calculation of...

This thesis measures the extent of the impact of the EU’s management of its migration flow in the aftermath of the ‘Summer of Migration’ on its legitimacy and normative power towards external actors.  Although historically funded and legitimated by its commitment to Human Rights values, the EU has failed to manage effectively and ethically the migration crisis indenpently. Building upon Buchanan’s constructivist approach of the strategies of legitimation used by IOs in IR, this thesis argues that this failure, by shedding light on the union’s weaknesses and pressuring it into to unethical external deals, deteriorates its image towards external actors and provides delegitimating tools to competitors of the EU in a global context of post-US hegemony, feeding power struggles in a shifting polarized world. By creating a theoretical bridge between EU internal policies and their external consequences, this thesis investigates interconnexions and causality effects between the structural flaws of the CEAS, the 2016 EU/Turkey deal and the loss of legitimacy of the EU. The arguments defended by this thesis are supported by an empirical research based on the critical discourse analysis of the evolutions of Turkish leaders’ speeches given at the UN General Assembly debates between 2009 and 2019. Using methods deriving from Discourse Historical Analysis (DHA), the analysis of the speeches pinpoints the role of the EU’s management of the migration crisis in the shift from positive to negative discourses of Turkish leaders towards the union. Finally, the study considers that the normative arguments related to the non-commitment of the EU to its upheld HR values has become a semantic tool of delegitimation for Turkey against the EU, and to promote itself as a new leader of IR.