Beyond their shared characteristics in an economical perspective, references have also been made, especially in international media, to different political connotations within the term, including by associating this capital with Islamic values or extending its whole under such definitions as "Islamic capital" or "green capital". The political choices and the voting trends of the cities and of particulars in question may differ widely between each other. A 2005 study by the European Stability Initiative that was focused on Kayseri uses the term "Islamic Calvinists" to define the entrepreneurs and their values.[7]