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Ciarli, Tommaso, Leoncini, Riccardo, Montresor, Sandro and Valente, Marco (2009) Technological change and the vertical organization of industries. In: Cantner, Uwe, Gaffard, Jean-Luc and Nesta, Lionel (eds.) Schumpeterian Perspectives on Innovation, Competition and Growth. Springer-Verlag, Berlin, pp. 115-136. ISBN 9783540937760