Artists and the Market: From Leonardo and Titian to Warhol and Hirst

David W. Galenson, Conceptual Revolutions in Twentieth-Century Art (Cambridge University Press, 2009), chap. 15, https://www.nber.org/books-and-chapters/conceptual-revolutions-twentieth-century-art/artists-and-market-leonardo-and-titian-warhol-and-hirst.