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In this paper the second aspect , the organising capacity is taken as major area of study to measure Istanbul 's competitiveness for it needs to overcome as to be a world city . The world 's richest countries have agreed in principle to forgive roughly & dollar ; 55 billion dollars owed by the world 's poorest nations . At some level Marthe 's neurosis provided something Bonnard needed for his work , compelling him to live closed off from the world , and giving him the subject of virtually all his later pictures . This infrastructure also models the world 's best practice in terms of zone planning , green belting , traffic calming , etc. The point of this one is that Matisse was one of the most famous artists in the world at the time .