Geneva is a global city, a financial center, and worldwide center for diplomacy due to the presence of numerous international organizations, including the headquarters of many of the agencies of the United Nations and the Red Cross. Geneva is the city that hosts the highest number of international organizations in the world. It is also the place where the Geneva Conventions were signed, which chiefly concern the treatment of wartime non-combatants and prisoners of war.
Geneva was ranked as the world’s ninth most important financial centre for competitiveness by the Global Financial Centres Index, ahead of Frankfurt, and third in Europe behind London and Zürich. A 2009 survey by Mercer found that Geneva has the third-highest quality of life of any city in the world (behind Vienna and Zürich for expatriates; it is narrowly outranked by Zürich). The city has been referred to as the world’s most compact metropolis and the “Peace Capital”. In 2009 and 2011, Geneva was ranked as, respectively, the fourth and fifth most expensive city in the world.