To answer the question of what explains the success of recent Eurasian integrational projects (Eurasian Economic Community; Eurasian Customs Union; Eurasian Common Economic Space; and Eurasian...Show moreTo answer the question of what explains the success of recent Eurasian integrational projects (Eurasian Economic Community; Eurasian Customs Union; Eurasian Common Economic Space; and Eurasian Economic Union) vis-à-vis their predecessor (Commonwealth of Independent States), this research firstly establishes two measures of success of regional integration projects and applies these to the two aforementioned groupings in Eurasia. Then, several explanations of the varying success between these two groupings are analysed, after which the theory of postfunctionalism will be proposed as a possible explanation. To test this theory’s suitability in explaining this variation, its hypothesis about the success (and lack thereof) of regional integration projects will be tested using a longitudinal case-study research design involving mixed research methods.Show less