Studienarbeit aus dem Jahr 2013 im Fachbereich Geowissenschaften / Geographie - Wirtschaftsgeographie, Note: 2, Universität Hamburg (Geographie), Veranstaltung: Spatial Dimensions of the Global Crisis, Sprache: Deutsch, Abstract: In times of intensifying globalization processes and interweaving of the global economy, it is very interesting to find out, what are the actors or places where these processes are controlled. Are there any important places which have key functions to command and control? Many scientists are gone further into this question, and many concepts appeared to find out these centres of commanding and controlling. The most popular concept is the global city concept by Saskia Sassen. But for the most part, all concepts assume that there must exist some centres or cities, which include functions to control the world economy. And if there are such centres, are there any centres which are more important than others and are there any forms of hierarchies? Thus are there any processes which lead to a shift within the hierarchies like the global financial crisis? This paper seeks to answer these questions, especially if there is a shift of the leadership of global cities from predominant centres before and after the crisis.