From wikipedia about Paris
Paris. The city of Paris, within its administrative limits largely unchanged since 1860, has an estimated population of 2, 211, 297 (January 2008), but the Paris metropolitan area has a population of 11, 899, 544 (January 2008), and is one of the most populated metropolitan areas in Europe. Paris was the largest city in the Western world for about 1, 000 years, prior to the 19th century, and the largest in the entire world between the 16th and 19th centuries. Josef Gugler, World cities beyond the West: globalization, development, and inequality, 2004 (p. 396) Frederick Converse Beach, George Edwin Rines, The Americana, Volume 16, 1912. Frannie Léautier, World Bank, Cities in a globalizing world: governance, performance, and sustainability, 2006. (p. 115)
Paris is today one of the world's leading business and cultural centres, and its influences in politics, education, entertainment, media, fashion, science, and the arts all contribute to its status as one of the world's major global cities..
Paris and the Paris Region, with €552. 1 billion in 2009, produce more than a quarter of the gross domestic product of France
. According to 2008 estimates, the Paris agglomeration is, scantily after London, Europe's second biggest city economy and the sixth largest in the world.. (PDF file)