This chapter aims to provide a detailed description of the research methodology, including key questions, hypotheses, and methodological design, adopted for this book. Furthermore, this part presents a methodical account of (and justification for) employing a detailed case study analysis and cross-case comparison for a robust methodological design. The research methodology explained in this chapter will be applied in the case selection and analysis parts of the book, which will be guided by the logic of the model developed and presented in this chapter.