Global events tend to be shaped by the great powers: those countries with vast territories, enormous populations and proportionate economic and military heft. Nevertheless, small states not only survive but prosper, particularly in terms of GDP per capita and happiness reports. What are the advantages of being a small state? How can they make their voices heard? And what is it like to lead one? Andrew Mueller speaks to Armen Sarkissian, Sim Ann and Anett Numa.