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The analysis of contemporary art dealers’economic activity is based on statements of earnings and sales of French artists’ works as declared by dealers registered with the Maison des Artistes, the organisation which manages contributions to the artists’ social security system. By examining turnover and correlating it with the dealer’s business type, how long they have been in existence, their geographic location and their relationships with the artists whose work they distribute, one can distinguish distribution activity and draw up distinct profiles. This analysis also gives a detailed picture of how concentrated the activity of dealing is from Parisian art galleries, which are economically larger and more numerous.