To obtain the best possible picture of our chosen target audience, we conducted 21 interviews for the core case study and 11 interviews for the complementary case study, all with individuals who combined the above characteristics in the following subgroups. Direct advisors to government policy makers While interviewing government policy makers, such as a European or country minister, a region's administrator or a city's mayor would have been highly informative, we couldn't reasonably expect to reach such busy people. Hence, we decided instead to gather information from the individuals who directly influence this topmost group of policy makers. We thus chose to investigate individuals closest to government policy.
