In many cities, the Central Business District (CBD) is within the city centre, but the concept "city centre" differs from the CBD. The concept of the "CBD" revolves solely around economic and financial power, but the "city centre" also includes historical, political, and cultural factors. A clear example is Paris: La Défense is the central business district of Paris, but it is not the city centre. In most larger and/or older cities, the CBD and the city centre will only partially overlap, if at all.